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13531 discussions

LUN Snapshots
by Robert Lazzurs 12 Jul '07

12 Jul '07

Hello, I was wondering if anyone is aware of a way to have a NetApp do snapshots of just one LUN within a volume, if not possibly one qtree within a volume. The reason I ask is to provide a service where customers can have their iSCSI LUN and then backup that iSCSI LUN with a snapshot, however as I am going to have 100's of LUN's (well 1000's tbh, but this will be over many storage heads from the looks of things) I cannot assign a volume to each LUN. If there is not a way to get a NetApp to provide these facilities then if someone has any recommendations on storage systems I should look at that would be great :) (PS I love NetApp, please don't say I have to switch!!!) Thanks.

2 1

RE: List still active?
by Davies,Matt 12 Jul '07

12 Jul '07

Still working by the looks of things. busy in process of migrating all our physical severs to VM, stored on a iscsi lun on a FAS 270. For those that want to know we are using the software iscsi initiator within ESX and have not had any problems so far. cheers matt -----Original Message----- From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> To: toasters(a)mathworks.com <toasters(a)mathworks.com> Sent: Wed Jul 11 01:03:49 2007 Subject: List still active? I’ve noticed that I’m still subscribed, but have received no email since July 4th. Everyone didn’t trade their NetApp gear for something else while I was out of town did they?? J _____________________________________________________________ This e-mail (including all attachments) is confidential and may be privileged. It is for the exclusive use of the addressee only. If you are not the addressee, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please erase all copies of the message and its attachments and notify us immediately at help(a)generalatlantic.com <mailto:help@generalatlantic.com>. Thank You.

9 22

RE: NFS vs. iSCSI for VMware (was "Re: List still active?")
by Glenn Dekhayser 12 Jul '07

12 Jul '07

Vaughn: > NetApp covers this technology in their VMware Storage Best Practices > paper, TR3428. You're way too modest....you WROTE that TR...... :) Glenn @ Voyant > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner- > toasters(a)mathworks.com] On Behalf Of M. Vaughn Stewart > Sent: Wednesday, July 11, 2007 10:53 PM > To: Scott Lowe > Cc: Davies,Matt; toasters(a)mathworks.com > Subject: Re: NFS vs. iSCSI for VMware (was "Re: List still active?") > > Scott, > > Your comments on the 2x the space for a NetApp is LUN is a bit > misleading and is out of date. > > NetApp LUNs do NOT require any additional space. i.e. 50gbs = 50gbs > > If you want to take a snapshot of that LUN you had to ensure that you > had additional capacity in case the volume became full in which case > the > snapshot function would be disabled until manual intervention deleted > old snapshots. In this design NetApp did not defferentiate the value > of > production data and snapshot data, so a requirement of a reserve > equaling 100% of the LUN size was required. i.e. 50gb = 50gb + 50 gb + > snapshot space. > > This design seemed inefficient when compared to snap reserves with NAS > data, but when compared to other SAN vendors and their n disk backup > mechanisms, it was extremely space efficient. I wont go into details > here but to say that enterprise class on disk backups with traditional > arrays require 100% overhead for each individual backup. > > Today NetApp offers a means where one can say production data is more > valuable than snapshots. They provide two dynamic space management > policies, auto vol grow and auto snapshot delete. With these two > policies you can eliminate any additional LUN overhead and should a > volume run out of space the appropriate policy will be enforced and > will > ensure that production data remains online. Now 50GB with snapshots = > 50GB + snapshot space only! > > NetApp covers this technology in their VMware Storage Best Practices > paper, TR3428. > > Vaughn > > > Scott Lowe wrote: > > The #1 complaint I have about using iSCSI relates to how LUNs are > > handled in the NetApp world: > > > > 1. You have to (by default) allocate 2x + deltas for LUNs. For a > > 100GB LUN, you'd need 240GB of space (by default--I know there are > > workarounds with ONTAP 7.2 and later). With an NFS mount (which is > > nothing more than exporting a FlexVol), you only need to account for > > the 20% Snapshot reserve. > > > > 2. You can't resize iSCSI LUNs. With NFS on a FlexVol, you can > > resize to your heart's content because WAFL is controlling the > > filesystem--not the host. > > > > 3. It's open, meaning that your VMDKs aren't locked into the > > proprietary VMFS file system. This could potentially simplify > backups > > and restores. > > > > As Glenn @ Voyant already mentioned, you also gain thin provisioned > > disks by default and more knowledge/history/experience with NFS than > > with iSCSI. > > > > Thanks, > > Scott Lowe > > ePlus Technology, Inc. > > slowe(a)eplus.com > > > > > > > > On Jul 11, 2007, at 9:34 AM, Davies,Matt wrote: > > > >> Scott, > >> > >> Any chance you could expand on the advantages of NFS over Iscsi ? > NFS > >> isn't an area I have any experience of.... > >> > >> Cheers > >> > >> Matt > >> > >> -----Original Message----- > >> From: owner-toasters(a)mathworks.com [mailto:owner- > toasters(a)mathworks.com] > >> On Behalf Of Scott Lowe > >> Sent: 11 July 2007 14:05 > >> To: Forest Leonard; toasters(a)mathworks.com > >> Subject: Re: List still active? > >> > >> Forest, > >> > >> When it comes time to configure VMkernel for VMotion, then I'd > >> definitely recommend keeping it separate from the virtual machine > >> network. As it stands right now, you don't even need a VMkernel NIC > >> configured because it sounds like you are using Qlogic iSCSI HBAs > and > >> only have a single ESX Server. Since the Qlogic cards handle the > >> iSCSI traffic and there is no VMotion, there no current need for a > >> VMkernel NIC (unless you want to use NFS from the FAS to provide > >> additional storage for VMs--which, by the way, works pretty well and > >> has some nice advantages over iSCSI, IMHO). > >> > >> Regards, > >> Scott Lowe > >> ePlus Technology, Inc. > >> slowe(a)eplus.com > >> > >> > >> > >> On Jul 11, 2007, at 8:33 AM, Forest Leonard wrote: > >> > >>> Interesting stuff. I only have one ESX server so I haven't gotten > >>> to the > >>> Vmotion configuration yet.. That should be later this year. > >>> > >>> I just configured a RDM to run a Virtual server on. I found an > article > >>> where you want to create the type as NTFS if it is a RDM for a > windows > >>> host. Not sure if I am going to use this going forward. I actually > >>> don't > >>> know if you can migrate into a RDM. It doesn't look like it. > >>> > >>> I am only using 2 NIC's on my Vmware server.. and a QLOGIC card for > my > >>> ISCSI access.. I may need to look at bulking up my NIC > >>> configuration. It > >>> looks like I may gain some performance if I separate my VMKernal > >>> from my > >>> Virtual Machine network? > >>> > >>> Thanks, > >>> Forest > >>> > >>> -----Original Message----- > >>> From: Davies,Matt [mailto:MDAVIES@generalatlantic.com] > >>> Sent: Wednesday, July 11, 2007 8:18 AM > >>> To: Forest Leonard; ggwalker(a)mindspring.com; toasters(a)mathworks.com > >>> Subject: RE: List still active? > >>> > >>> Sounds like we are both at the same stage. > >>> > >>> We are not using RDM's yet, however when it comes to exchange we > will > >>> have to, or I may just stick with using the Microsoft Iscsi > >>> initiatator > >>> from within the VM, not exactly supported, but I know of other > people > >>> doing it. > >>> > >>> We have migrated 8 machines so far, into just one datastore and > >>> have not > >>> seen any performance problems at all, although most of the machines > >>> have > >>> very low IO requirements. > >>> > >>> We are using a script to snapshot and then replicate using > snapmirror, > >>> it works very well, however our Virtual Centre server is also a VM > >>> which > >>> was causing a few problems with the snapshots on the VMware side > not > >>> being removed, but moving this to a separate datastore seems have > >>> cured > >>> the problems, even SQL doesn't seem to have a problem. > >>> > >>> The script is the one written by Evan Battle, that is in the newest > >>> netapp docs on VMware. I did have a few problems with ssh to the > >>> filer, > >>> but we are now using rsh and it seems to be ok. > >>> > >>> I don't know how you have setup your virtual switches on the ESX > side, > >>> but I got some best practice information out of VMware on that > >>> subject. > >>> > >>> Each of our ESX IBM3550 host servers have 6 Nics, connected as > >>> follows. > >>> > >>> 2 Nics for service console VMKernel for Vmotion, load balance using > >>> Virtual port ID > >>> > >>> 2 Nics for Virtual Machine network, load balance using Virtual port > ID > >>> > >>> 2 Nics for ISCSI (Service Console and VMKernel), load balance using > IP > >>> Hash > >>> > >>> Hope this helps.... > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> -----Original Message----- > >>> From: Forest Leonard [mailto:fleonard@rvigroup.com] > >>> Sent: 11 July 2007 11:06 > >>> To: Davies,Matt; ggwalker(a)mindspring.com; toasters(a)mathworks.com > >>> Subject: RE: List still active? > >>> > >>> Hey Matt... I am actually doing the exact same thing on a FAS 270.. > I > >>> have migrated about 7 servers so far. > >>> > >>> Are you using RDM's (remote device mappings) for the Virtual > >>> Machines? I > >>> actually just created 2 200GB LUNs on the netapp to use as > Datastores > >>> and have not had any performance issues. > >>> > >>> Just wondering what your experience with RDM's are.. I added one > >>> into a > >>> virtual machine.. It just lets you map a LUN directly to a Virtual > >>> machine. > >>> > >>> Has anyone out there used the netapp script to capture a VM > snapshot? > >>> > >>> Thanks, > >>> Forest > >>> > >>> ________________________________ > >>> > >>> From: owner-toasters(a)mathworks.com on behalf of Davies,Matt > >>> Sent: Wed 7/11/2007 1:00 AM > >>> To: ggwalker(a)mindspring.com; toasters(a)mathworks.com > >>> Subject: RE: List still active? > >>> > >>> > >>> > >>> Still working by the looks of things. > >>> > >>> busy in process of migrating all our physical severs to VM, stored > >>> on a > >>> iscsi lun on a FAS 270. > >>> > >>> For those that want to know we are using the software iscsi > initiator > >>> within ESX and have not had any problems so far. > >>> > >>> cheers > >>> > >>> matt > >>> > >>> -----Original Message----- > >>> From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> > >>> To: toasters(a)mathworks.com <toasters(a)mathworks.com> > >>> Sent: Wed Jul 11 01:03:49 2007 > >>> Subject: List still active? > >>> > >>> I've noticed that I'm still subscribed, but have received no email > >>> since > >>> July 4th. Everyone didn't trade their NetApp gear for something > else > >>> while I was out of town did they?? J > >>> > >>> > >>> > >>> _____________________________________________________________ > >>> This e-mail (including all attachments) is confidential and may be > >>> privileged. > >>> It is for the exclusive use of the addressee only. If you are not > the > >>> addressee, > >>> you are hereby notified that any dissemination of this > >>> communication is > >>> strictly > >>> prohibited. If you have received this communication in error, > please > >>> erase all > >>> copies of the message and its attachments and notify us immediately > at > >>> help(a)generalatlantic.com <mailto:help@generalatlantic.com>. Thank > You. > >>> > >>> > >>> > >>> > ###################################################################### > >> > >>> ## > >>> ############# > >>> Note: > >>> If you have received this message in error, please notify the > original > >>> sender immediately by telephone (203)975-2100 or by return e-mail, > and > >>> delete the message, along with any attachments from your computer. > If > >>> you have received this message in error, you are hereby notified > that > >>> any dissemination, distribution or copying of this e-mail, and any > >>> attachments thereto, is strictly prohibited.This note is also to > >>> notify > >>> the recipient of this email that it has been scanned for all known > >>> viruses and attacking techniques. Thank you. > http://www.rvigroup.com > >>> > ###################################################################### > >> > >>> ## > >>> ############# > >>> > >>> > ###################################################################### > >> > >>> ############### > >>> Note: > >>> If you have received this message in error, please notify the > >>> original sender immediately by telephone (203)975-2100 or by return > >>> e-mail, and delete the message, along with any attachments from > >>> your computer. If you have received this message in error, you are > >>> hereby notified that any dissemination, distribution or copying of > >>> this e-mail, and any attachments thereto, is strictly > >>> prohibited.This note is also to notify the recipient of this email > >>> that it has been scanned for all known viruses and attacking > >>> techniques. Thank you. http://www.rvigroup.com > >>> > ###################################################################### > >> > >>> ############### > >>> > >> > >> > > > > >

2 1

RE: NFS vs. iSCSI for VMware (was "Re: List still active?")
by Kenneth Heal 11 Jul '07

11 Jul '07

HiFilers will happily support NFS over TCP (indeed Netapp often recommends this, see for example http://www.netapp.com/library/tr/3183.pdf). There is also support for NFSv4 and apparently they have made some improvements to NFS in 7.2.x.I am not currently working much with ESX, so I shall have to leave that for others to comment on -- but this is an interesting discussion to follow. cheersKennethKenneth HealStorage ConsultantSenet Eindhoven bv> Subject: RE: NFS vs. iSCSI for VMware (was "Re: List still active?")> Date: Wed, 11 Jul 2007 16:00:48 +0100> From: MDAVIES(a)generalatlantic.com> To: slowe(a)EPLUS.com; toasters(a)mathworks.com> > > Is anyone using NFS volumes and VMware in a production environment ?> > I know it has been reported that there isn't a great deal difference in> performance especially when compared with IScsi, but is this true ?> > And from what I remember ESX only supports NFS V3 over TCP, do the> Filers work with this ? Sorry my knowledge of NFS wouldn't fill the back> of a postage stamp.> > And I'm sorry I have turned this into a VMware list :)> > > Cheers> > Matt> > > > > -----Original Message-----> From: Scott Lowe [mailto:slowe@EPLUS.com] > Sent: 11 July 2007 15:44> To: Davies,Matt; toasters(a)mathworks.com> Subject: NFS vs. iSCSI for VMware (was "Re: List still active?")> > The #1 complaint I have about using iSCSI relates to how LUNs are > handled in the NetApp world:> > 1. You have to (by default) allocate 2x + deltas for LUNs. For a > 100GB LUN, you'd need 240GB of space (by default--I know there are > workarounds with ONTAP 7.2 and later). With an NFS mount (which is > nothing more than exporting a FlexVol), you only need to account for > the 20% Snapshot reserve.> > 2. You can't resize iSCSI LUNs. With NFS on a FlexVol, you can > resize to your heart's content because WAFL is controlling the > filesystem--not the host.> > 3. It's open, meaning that your VMDKs aren't locked into the > proprietary VMFS file system. This could potentially simplify > backups and restores.> > As Glenn @ Voyant already mentioned, you also gain thin provisioned > disks by default and more knowledge/history/experience with NFS than > with iSCSI.> > Thanks,> Scott Lowe> ePlus Technology, Inc.> slowe(a)eplus.com> > > > On Jul 11, 2007, at 9:34 AM, Davies,Matt wrote:> > > Scott,> >> > Any chance you could expand on the advantages of NFS over Iscsi ? NFS> > isn't an area I have any experience of....> >> > Cheers> >> > Matt> >> > -----Original Message-----> > From: owner-toasters(a)mathworks.com [mailto:owner- > > toasters(a)mathworks.com]> > On Behalf Of Scott Lowe> > Sent: 11 July 2007 14:05> > To: Forest Leonard; toasters(a)mathworks.com> > Subject: Re: List still active?> >> > Forest,> >> > When it comes time to configure VMkernel for VMotion, then I'd> > definitely recommend keeping it separate from the virtual machine> > network. As it stands right now, you don't even need a VMkernel NIC> > configured because it sounds like you are using Qlogic iSCSI HBAs and> > only have a single ESX Server. Since the Qlogic cards handle the> > iSCSI traffic and there is no VMotion, there no current need for a> > VMkernel NIC (unless you want to use NFS from the FAS to provide> > additional storage for VMs--which, by the way, works pretty well and> > has some nice advantages over iSCSI, IMHO).> >> > Regards,> > Scott Lowe> > ePlus Technology, Inc.> > slowe(a)eplus.com> >> >> >> > On Jul 11, 2007, at 8:33 AM, Forest Leonard wrote:> >> >> Interesting stuff. I only have one ESX server so I haven't gotten> >> to the> >> Vmotion configuration yet.. That should be later this year.> >>> >> I just configured a RDM to run a Virtual server on. I found an > >> article> >> where you want to create the type as NTFS if it is a RDM for a > >> windows> >> host. Not sure if I am going to use this going forward. I actually> >> don't> >> know if you can migrate into a RDM. It doesn't look like it.> >>> >> I am only using 2 NIC's on my Vmware server.. and a QLOGIC card > >> for my> >> ISCSI access.. I may need to look at bulking up my NIC> >> configuration. It> >> looks like I may gain some performance if I separate my VMKernal> >> from my> >> Virtual Machine network?> >>> >> Thanks,> >> Forest> >>> >> -----Original Message-----> >> From: Davies,Matt [mailto:MDAVIES@generalatlantic.com]> >> Sent: Wednesday, July 11, 2007 8:18 AM> >> To: Forest Leonard; ggwalker(a)mindspring.com; toasters(a)mathworks.com> >> Subject: RE: List still active?> >>> >> Sounds like we are both at the same stage.> >>> >> We are not using RDM's yet, however when it comes to exchange we will> >> have to, or I may just stick with using the Microsoft Iscsi> >> initiatator> >> from within the VM, not exactly supported, but I know of other people> >> doing it.> >>> >> We have migrated 8 machines so far, into just one datastore and> >> have not> >> seen any performance problems at all, although most of the machines> >> have> >> very low IO requirements.> >>> >> We are using a script to snapshot and then replicate using > >> snapmirror,> >> it works very well, however our Virtual Centre server is also a VM> >> which> >> was causing a few problems with the snapshots on the VMware side not> >> being removed, but moving this to a separate datastore seems have> >> cured> >> the problems, even SQL doesn't seem to have a problem.> >>> >> The script is the one written by Evan Battle, that is in the newest> >> netapp docs on VMware. I did have a few problems with ssh to the> >> filer,> >> but we are now using rsh and it seems to be ok.> >>> >> I don't know how you have setup your virtual switches on the ESX > >> side,> >> but I got some best practice information out of VMware on that> >> subject.> >>> >> Each of our ESX IBM3550 host servers have 6 Nics, connected as> >> follows.> >>> >> 2 Nics for service console VMKernel for Vmotion, load balance using> >> Virtual port ID> >>> >> 2 Nics for Virtual Machine network, load balance using Virtual > >> port ID> >>> >> 2 Nics for ISCSI (Service Console and VMKernel), load balance > >> using IP> >> Hash> >>> >> Hope this helps....> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> -----Original Message-----> >> From: Forest Leonard [mailto:fleonard@rvigroup.com]> >> Sent: 11 July 2007 11:06> >> To: Davies,Matt; ggwalker(a)mindspring.com; toasters(a)mathworks.com> >> Subject: RE: List still active?> >>> >> Hey Matt... I am actually doing the exact same thing on a FAS 270.. I> >> have migrated about 7 servers so far.> >>> >> Are you using RDM's (remote device mappings) for the Virtual> >> Machines? I> >> actually just created 2 200GB LUNs on the netapp to use as Datastores> >> and have not had any performance issues.> >>> >> Just wondering what your experience with RDM's are.. I added one> >> into a> >> virtual machine.. It just lets you map a LUN directly to a Virtual> >> machine.> >>> >> Has anyone out there used the netapp script to capture a VM snapshot?> >>> >> Thanks,> >> Forest> >>> >> ________________________________> >>> >> From: owner-toasters(a)mathworks.com on behalf of Davies,Matt> >> Sent: Wed 7/11/2007 1:00 AM> >> To: ggwalker(a)mindspring.com; toasters(a)mathworks.com> >> Subject: RE: List still active?> >>> >>> >>> >> Still working by the looks of things.> >>> >> busy in process of migrating all our physical severs to VM, stored> >> on a> >> iscsi lun on a FAS 270.> >>> >> For those that want to know we are using the software iscsi initiator> >> within ESX and have not had any problems so far.> >>> >> cheers> >>> >> matt> >>> >> -----Original Message-----> >> From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com>> >> To: toasters(a)mathworks.com <toasters(a)mathworks.com>> >> Sent: Wed Jul 11 01:03:49 2007> >> Subject: List still active?> >>> >> I've noticed that I'm still subscribed, but have received no email> >> since> >> July 4th. Everyone didn't trade their NetApp gear for something else> >> while I was out of town did they?? J> >>> >>> >>> >> _____________________________________________________________> >> This e-mail (including all attachments) is confidential and may be> >> privileged.> >> It is for the exclusive use of the addressee only. If you are not the> >> addressee,> >> you are hereby notified that any dissemination of this> >> communication is> >> strictly> >> prohibited. If you have received this communication in error, please> >> erase all> >> copies of the message and its attachments and notify us > >> immediately at> >> help(a)generalatlantic.com <mailto:help@generalatlantic.com>. Thank > >> You.> >>> >>> >>> >> #####################################################################> > >> #> >> >> ##> >> #############> >> Note:> >> If you have received this message in error, please notify the > >> original> >> sender immediately by telephone (203)975-2100 or by return e-mail, > >> and> >> delete the message, along with any attachments from your > >> computer. If> >> you have received this message in error, you are hereby notified that> >> any dissemination, distribution or copying of this e-mail, and any> >> attachments thereto, is strictly prohibited.This note is also to> >> notify> >> the recipient of this email that it has been scanned for all known> >> viruses and attacking techniques. Thank you. http://www.rvigroup.com> >> #####################################################################> > >> #> >> >> ##> >> #############> >>> >> #####################################################################> > >> #> >> >> ###############> >> Note:> >> If you have received this message in error, please notify the> >> original sender immediately by telephone (203)975-2100 or by return> >> e-mail, and delete the message, along with any attachments from> >> your computer. If you have received this message in error, you are> >> hereby notified that any dissemination, distribution or copying of> >> this e-mail, and any attachments thereto, is strictly> >> prohibited.This note is also to notify the recipient of this email> >> that it has been scanned for all known viruses and attacking> >> techniques. Thank you. http://www.rvigroup.com> >> #####################################################################> > >> #> >> >> ###############> >>> >> >> > > _________________________________________________________________ With Windows Live Hotmail, you can personalize your inbox with your favorite color. www.windowslive-hotmail.com/learnmore/personalize.html?locale=en-us&ocid=TX…

1 0

RE: List still active?
by Davies,Matt 11 Jul '07

11 Jul '07

Glenn, Thanks for the info, perhaps it's time to get a NFS license for my filers. Cheers Matt -----Original Message----- From: Glenn Dekhayser [mailto:gdekhayser@voyantinc.com] Sent: 11 July 2007 14:55 To: Davies,Matt; Scott Lowe; Forest Leonard; toasters(a)mathworks.com Subject: RE: List still active? Advantages IMHO 1) VMDKs on NFS are by default THIN-Provisioned; 2) Throughput is about equal 3) NFS is a heck of a lot easier to administer 4) There's 3x longer history and knowledgebase on NFS network t-shooting. Dis-Advantages: 1) You can do a QLogic iSCSI card to offload CPU processing of packets; 2) In a big environment you can use iSNS; 3) You can be much more granular with masking/etc (although I can imagine you can be creative with NFS) 4) NFS is stateless (v2), to be run fastest you use UDP; so to make it reliable it gets a little slower (but still not a real biggie) Anyone else? Glenn @ VOyant > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner- > toasters(a)mathworks.com] On Behalf Of Davies,Matt > Sent: Wednesday, July 11, 2007 9:35 AM > To: Scott Lowe; Forest Leonard; toasters(a)mathworks.com > Subject: RE: List still active? > > Scott, > > Any chance you could expand on the advantages of NFS over Iscsi ? NFS > isn't an area I have any experience of.... > > Cheers > > Matt > > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner- > toasters(a)mathworks.com] > On Behalf Of Scott Lowe > Sent: 11 July 2007 14:05 > To: Forest Leonard; toasters(a)mathworks.com > Subject: Re: List still active? > > Forest, > > When it comes time to configure VMkernel for VMotion, then I'd > definitely recommend keeping it separate from the virtual machine > network. As it stands right now, you don't even need a VMkernel NIC > configured because it sounds like you are using Qlogic iSCSI HBAs and > only have a single ESX Server. Since the Qlogic cards handle the > iSCSI traffic and there is no VMotion, there no current need for a > VMkernel NIC (unless you want to use NFS from the FAS to provide > additional storage for VMs--which, by the way, works pretty well and > has some nice advantages over iSCSI, IMHO). > > Regards, > Scott Lowe > ePlus Technology, Inc. > slowe(a)eplus.com > > > > On Jul 11, 2007, at 8:33 AM, Forest Leonard wrote: > > > Interesting stuff. I only have one ESX server so I haven't gotten > > to the > > Vmotion configuration yet.. That should be later this year. > > > > I just configured a RDM to run a Virtual server on. I found an > article > > where you want to create the type as NTFS if it is a RDM for a > windows > > host. Not sure if I am going to use this going forward. I actually > > don't > > know if you can migrate into a RDM. It doesn't look like it. > > > > I am only using 2 NIC's on my Vmware server.. and a QLOGIC card for > my > > ISCSI access.. I may need to look at bulking up my NIC > > configuration. It > > looks like I may gain some performance if I separate my VMKernal > > from my > > Virtual Machine network? > > > > Thanks, > > Forest > > > > -----Original Message----- > > From: Davies,Matt [mailto:MDAVIES@generalatlantic.com] > > Sent: Wednesday, July 11, 2007 8:18 AM > > To: Forest Leonard; ggwalker(a)mindspring.com; toasters(a)mathworks.com > > Subject: RE: List still active? > > > > Sounds like we are both at the same stage. > > > > We are not using RDM's yet, however when it comes to exchange we will > > have to, or I may just stick with using the Microsoft Iscsi > > initiatator > > from within the VM, not exactly supported, but I know of other people > > doing it. > > > > We have migrated 8 machines so far, into just one datastore and > > have not > > seen any performance problems at all, although most of the machines > > have > > very low IO requirements. > > > > We are using a script to snapshot and then replicate using > snapmirror, > > it works very well, however our Virtual Centre server is also a VM > > which > > was causing a few problems with the snapshots on the VMware side not > > being removed, but moving this to a separate datastore seems have > > cured > > the problems, even SQL doesn't seem to have a problem. > > > > The script is the one written by Evan Battle, that is in the newest > > netapp docs on VMware. I did have a few problems with ssh to the > > filer, > > but we are now using rsh and it seems to be ok. > > > > I don't know how you have setup your virtual switches on the ESX > side, > > but I got some best practice information out of VMware on that > > subject. > > > > Each of our ESX IBM3550 host servers have 6 Nics, connected as > > follows. > > > > 2 Nics for service console VMKernel for Vmotion, load balance using > > Virtual port ID > > > > 2 Nics for Virtual Machine network, load balance using Virtual port > ID > > > > 2 Nics for ISCSI (Service Console and VMKernel), load balance using > IP > > Hash > > > > Hope this helps.... > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > From: Forest Leonard [mailto:fleonard@rvigroup.com] > > Sent: 11 July 2007 11:06 > > To: Davies,Matt; ggwalker(a)mindspring.com; toasters(a)mathworks.com > > Subject: RE: List still active? > > > > Hey Matt... I am actually doing the exact same thing on a FAS 270.. I > > have migrated about 7 servers so far. > > > > Are you using RDM's (remote device mappings) for the Virtual > > Machines? I > > actually just created 2 200GB LUNs on the netapp to use as Datastores > > and have not had any performance issues. > > > > Just wondering what your experience with RDM's are.. I added one > > into a > > virtual machine.. It just lets you map a LUN directly to a Virtual > > machine. > > > > Has anyone out there used the netapp script to capture a VM snapshot? > > > > Thanks, > > Forest > > > > ________________________________ > > > > From: owner-toasters(a)mathworks.com on behalf of Davies,Matt > > Sent: Wed 7/11/2007 1:00 AM > > To: ggwalker(a)mindspring.com; toasters(a)mathworks.com > > Subject: RE: List still active? > > > > > > > > Still working by the looks of things. > > > > busy in process of migrating all our physical severs to VM, stored > > on a > > iscsi lun on a FAS 270. > > > > For those that want to know we are using the software iscsi initiator > > within ESX and have not had any problems so far. > > > > cheers > > > > matt > > > > -----Original Message----- > > From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> > > To: toasters(a)mathworks.com <toasters(a)mathworks.com> > > Sent: Wed Jul 11 01:03:49 2007 > > Subject: List still active? > > > > I've noticed that I'm still subscribed, but have received no email > > since > > July 4th. Everyone didn't trade their NetApp gear for something else > > while I was out of town did they?? J > > > > > > > > _____________________________________________________________ > > This e-mail (including all attachments) is confidential and may be > > privileged. > > It is for the exclusive use of the addressee only. If you are not the > > addressee, > > you are hereby notified that any dissemination of this > > communication is > > strictly > > prohibited. If you have received this communication in error, please > > erase all > > copies of the message and its attachments and notify us immediately > at > > help(a)generalatlantic.com <mailto:help@generalatlantic.com>. Thank > You. > > > > > > > > > ###################################################################### > > > ## > > ############# > > Note: > > If you have received this message in error, please notify the > original > > sender immediately by telephone (203)975-2100 or by return e-mail, > and > > delete the message, along with any attachments from your computer. > If > > you have received this message in error, you are hereby notified that > > any dissemination, distribution or copying of this e-mail, and any > > attachments thereto, is strictly prohibited.This note is also to > > notify > > the recipient of this email that it has been scanned for all known > > viruses and attacking techniques. Thank you. http://www.rvigroup.com > > > ###################################################################### > > > ## > > ############# > > > > > ###################################################################### > > > ############### > > Note: > > If you have received this message in error, please notify the > > original sender immediately by telephone (203)975-2100 or by return > > e-mail, and delete the message, along with any attachments from > > your computer. If you have received this message in error, you are > > hereby notified that any dissemination, distribution or copying of > > this e-mail, and any attachments thereto, is strictly > > prohibited.This note is also to notify the recipient of this email > > that it has been scanned for all known viruses and attacking > > techniques. Thank you. http://www.rvigroup.com > > > ###################################################################### > > > ############### > > > > >

1 0

List still active?
by Glenn Walker 11 Jul '07

11 Jul '07

I've noticed that I'm still subscribed, but have received no email since July 4th. Everyone didn't trade their NetApp gear for something else while I was out of town did they?? :-)

3 2

snapmirror newbie
by George Kahler 04 Jul '07

04 Jul '07

Hi, I'm evaluating snapmirror for qtree migration from our existing filers running 6.5.4P8 to a newly purchased FAS3040 running 7.2.2 I have configured snapmirror and managed to figure out how to do the initial transfer but I can't seem to get the following ... I would like to be able to stop (and resume at a later time) both the initial and any later updates if I find that they are impacting the production system. Tried: quiesce, break & resync, break & resume Please help. George

5 5

find busiest flexvols in an aggregate?
by Mopar Guy 30 Jun '07

30 Jun '07

we have many flexvols in a large aggregate. our filer 960C is always 100% cpu and about 11,000 to 18,000 nfs ops/sec. some people have started complaining about performance. how can we tell what flexvols may be overutilized or consuming most of the traffic so we can perhaps migrate them elsewhere? also we only have two fibre loops with 7 shelves on each loop, if we added a third and split them down to about 4 shelves or so per loop would that improve i/o?

2 1

Re: Mac OS AFP support?
by van Teylingen, Geert 30 Jun '07

30 Jun '07

You may want to have a look at http://www.netapp.com/library/tr/3472.pdf. ---- Met vriendelijke groet / With kind regards, Geert van Teylingen SE NetApp [Sent from my Blackberry Handheld, apologies for any typos...] -----Original Message----- From: Jack Lyons <jack1729(a)gmail.com> To: Sphar, Mike <Mike_Sphar(a)bmc.com> CC: toasters(a)mathworks.com <toasters(a)mathworks.com> Sent: Sat Jun 30 13:56:51 2007 Subject: Re: Mac OS AFP support? Dave uses the "hidden" file stream in NTFS for the resource information. The only weird thing we saw with resource forks, was that font files would appear as 0k files, because they store their data in the resource fork. What problems are you seeing. Sphar, Mike wrote: > Don't you still have the resource fork files left behind when using > Dave? > > >

1 0

Odd problem since upgrade to FAS6030
by Warkentin, Grant 29 Jun '07

29 Jun '07

We recently upgraded to a FAS6030 running 7.2.2. Since the upgrade our developers (they run VMWare Workstation 5.5) have been complaining that the connection to their H: drives is dropping. They receive a message about "You are now in off-line mode". When the filer is pinged, it does respond and the H: drive will reconnect eventually. The regular work stations are having no problems with this. Only the VMWare users. Have not been able to find any relevant docs in a Google search yet... Thought I'd post here in case someone has seen this. Thanks. Grant Warkentin, B.Sc System Administrator II Information Technology, IT Operations The City of Calgary | Mail Code: 8245 T: (403) 268-5629 | F: (403) 268-2546 Floor 3, Administration Building, 800 Macleod Trail S.E. P.O. Box 2100, Station M, Calgary, AB Canada. T2P 2M5

1 0

Scsi sense check/tape backup errors.
by Ken Williams 29 Jun '07

29 Jun '07

So I have an FAS3020 running 7.0.2 It has been repurposed to handle production data and as such we need to back it up. I've attached a DLT8000 tape drive to is via SAN (fiber->scsi bridge), and ontap sees the tape: Tape drive (em2dir1:2-26.146L4) Quantum DLT8000 rst4l - rewind device, format is: 81633 bpi 40GB cmp DLTIV nrst4l - no rewind device, format is: 81633 bpi 40GB cmp DLTIV urst4l - unload/reload device, format is: 81633 bpi 40GB cmp DLTIV rst4m - rewind device, format is: 85937 bpi 70GB cmp DLTIV nrst4m - no rewind device, format is: 85937 bpi 70GB cmp DLTIV urst4m - unload/reload device, format is: 85937 bpi 70GB cmp DLTIV rst4h - rewind device, format is: 98250 bpi 40GB DLTIV nrst4h - no rewind device, format is: 98250 bpi 40GB DLTIV urst4h - unload/reload device, format is: 98250 bpi 40GB DLTIV rst4a - rewind device, format is: 98250 bpi 80GB cmp DLTIV nrst4a - no rewind device, format is: 98250 bpi 80GB cmp DLTIV urst4a - unload/reload device, format is: 98250 bpi 80GB cmp DLTIV There is media in said tape, it is NOT write protected, and I've tried other media as well as other tape drivers (I actually have 4 DLT8000 drives assigned to the machine) Whenever I try to dump data to tape manually : dump 0f nrst4a /vol/vol0/etc ... Fri Jun 29 10:03:24 PDT [tape.cmd.chkCondErr:error]: Device em2dir1:2-26.146L4: Check Condition: SCSI Op Code Write(06)) (CDB 0x0a: 0x00fc00 bytes): data protec t - Write protected (0x7 - 0x27 0x0 0x0). DUMP: Tape write failed - new tape is broken or write protected. ... When issuing mt commands (rewind specifically) I get this error: Fri Jun 29 10:03:07 PDT [scsi.cmd.checkCondition:error]: Device em2dir1:2-26.14 L4L4: Check Condition: CDB 0x15: Sense Data SCSI:data protect - (0x7 - 0x27 0x 0x0)(1). Any ideas? I've scoured NOW, nothing seems to resolve my issue. __________________________________________________________ Ken Williams Storage Administrator, Business Technology Operations Sacramento Municipal Utility District E-Mail: kwillia(a)smud.org Phone: (916) 732-6744 Cell: (916) 240-4213

1 0

Cifsconfig_share.cfg
by Jon Hill 29 Jun '07

29 Jun '07

We need to replicate the definitions for all cifs shares of files from a particular volume to our DR filer. For the moment I'm probably going to manually copy all the relevant lines from etc/cifsconfig_share.cfg on the production filer and paste it into the corresponding file on the DR filer, but I'm a little concerned by occasional groups of 6-8 rows of hash marks / pound signs (#) I see scattered throughout the file. Does anyone know what these represent? I was thinking maybe onTAP deletes old shares by replacing their relevant lines in cifsconfig_share.cfg with #s, but that seems like an ugly way to achieve the goal.

2 1

Snapvault:
by Francois Joubert 28 Jun '07

28 Jun '07

I have a number of volumes/qtrees on my primary filer. I am busy setting up snapvault on a secondary filer (both have an equal number of disks available to them). I was wondering which might be better in practice: a one-to-one relationship of volumes and qtrees on the primary and secondary; or to create the requisite number of qtrees on the secondary inside a single large volume. At the moment, I have 8Tbytes configured (4 volumes, 2 aggregates) on the primary (including snap reserve). I have about 5.5Tbytes of data to migrate onto the primary filer. Thanks Francois -- ______________________________________________________________________ Imagination Limited Registered in England and Wales with Company Registration Number 1442096 Registered Office: 25 Store Street South Crescent, London WC1E 7BL, England Tel +44 (0)20 7323 3300 Fax +44 (0)20 7323 5801 This email is confidential and may be privileged and is intended only for the addressee: if you have received it in error please notify the sender and delete it. We strive to make our systems secure but cannot accept any liability for viruses or any other security issue. ______________________________________________________________________

2 1

RE: ISCSI Bridge
by Forest Leonard 27 Jun '07

27 Jun '07

I thought that SCSI to ISCI bridge would be cheaper, just not sure if it would work. I also have no FC switches. I was hoping to share the tape drive with the 2 heads of the filer (not sure if that is possible.) Thanks, Forest -----Original Message----- From: Darren Soothill [mailto:darren@soothill.com] Sent: Wednesday, June 27, 2007 12:55 PM To: Forest Leonard Subject: RE: ISCSI Bridge Why not get a SCSI to FC bridge then? It will be faster then puling all the data across ethernet especially if you have larger files on the filer. The other option is 3 way NDMP but that is not supported by a large number of backup products. Don't know if Arcserve supports it. -----Original Message----- From: "Forest Leonard" <fleonard(a)rvigroup.com> To: "toasters(a)mathworks.com" <toasters(a)mathworks.com> Sent: 27/06/07 17:30 Subject: RE: ISCSI Bridge The drive interface is SCSI. The FAS270C does not have a SCSI connection. Thanks, Forest From: Paul Keating [mailto:pkeating@bank-banque-canada.ca] Sent: Wednesday, June 27, 2007 11:59 AM To: Forest Leonard; toasters(a)mathworks.com Subject: RE: ISCSI Bridge Any reason you cannot connect it directly? what is the drive interface? FC? Paul -- -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Forest Leonard Sent: June 27, 2007 10:49 AM To: toasters(a)mathworks.com Subject: ISCSI Bridge We have a FAS270C and I am attempting to use Arcserves NDMP agent to back it up. It looks like it requires a tape device to be connected to the Netapp. Has anyone used a ISCSI bridge to connect a standalone LTO3 tape drive to the filer? I was looking at Atto's iPBridge 1550D. I was assuming I could connect to HP Ultrium to the 1550D ISCSI bridge and connect it to the netapp. Anyone had any experience getting this to work? Thanks, Forest ________________________________ If you have received this message in error, please notify the original sender immediately by telephone (203) 975-2100 or by return e-mail, and delete the message, along with any attachments, from your computer. You are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. This note is also to notify the recipient of this email that it has been scanned for all known viruses and attacking techniques. Thank you. http://www.rvigroup.com <http://www.rvigroup.com> ________________________________ ==================================================================================== La version française suit le texte anglais. ------------------------------------------------------------------------------------ This email may contain privileged and/or confidential information, and the Bank of Canada does not waive any related rights. Any distribution, use, or copying of this email or the information it contains by other than the intended recipient is unauthorized. If you received this email in error please delete it immediately from your system and notify the sender promptly by email that you have done so. ------------------------------------------------------------------------------------ Le présent courriel peut contenir de l'information privilégiée ou confidentielle. La Banque du Canada ne renonce pas aux droits qui s'y rapportent. Toute diffusion, utilisation ou copie de ce courriel ou des renseignements qu'il contient par une personne autre que le ou les destinataires désignés est interdite. Si vous recevez ce courriel par erreur, veuillez le supprimer immédiatement et envoyer sans délai à l'expéditeur un message électronique pour l'aviser que vous avez éliminé de votre ordinateur toute copie du courriel reçu. ##################################################################################### Note: If you have received this message in error, please notify the original sender immediately by telephone (203)975-2100 or by return e-mail, and delete the message, along with any attachments from your computer. If you have received this message in error, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited.This note is also to notify the recipient of this email that it has been scanned for all known viruses and attacking techniques. Thank you. http://www.rvigroup.com ##################################################################################### ##################################################################################### Note: If you have received this message in error, please notify the original sender immediately by telephone (203)975-2100 or by return e-mail, and delete the message, along with any attachments from your computer. If you have received this message in error, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited.This note is also to notify the recipient of this email that it has been scanned for all known viruses and attacking techniques. Thank you. http://www.rvigroup.com #####################################################################################

1 0

ISCSI Bridge
by Forest Leonard 27 Jun '07

27 Jun '07

We have a FAS270C and I am attempting to use Arcserves NDMP agent to back it up. It looks like it requires a tape device to be connected to the Netapp. Has anyone used a ISCSI bridge to connect a standalone LTO3 tape drive to the filer? I was looking at Atto's iPBridge 1550D. I was assuming I could connect to HP Ultrium to the 1550D ISCSI bridge and connect it to the netapp. Anyone had any experience getting this to work? Thanks, Forest ##################################################################################### Note: If you have received this message in error, please notify the original sender immediately by telephone (203)975-2100 or by return e-mail, and delete the message, along with any attachments from your computer. If you have received this message in error, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited.This note is also to notify the recipient of this email that it has been scanned for all known viruses and attacking techniques. Thank you. http://www.rvigroup.com #####################################################################################

2 2

ISCI Bridge FAS270C
by ForestM 27 Jun '07

27 Jun '07

We have a FAS270C and I am attemping to use Arcserves NDMP agent to back it up. It looks like it requires a tape device to be connected to the Netapp. Has anyone used a ISCI bridge to connect a standalone LTO3 tape drive to the filer? I was looking at Atto's iPBridge 1550D. I was assuming I could connect to HP Ultrium to the 1550D ISCSI bridge and connect it to the netapp. Anyone had any experience getting this to work? I am trying to use the tape drive I already have. thanks, Forest -- View this message in context: http://www.nabble.com/ISCI-Bridge-FAS270C-tf3982720.html#a11306704 Sent from the Network Appliance - Toasters mailing list archive at Nabble.com.

1 0

Symlinks and CIFS, FTP (and NFS)
by Francois Joubert 27 Jun '07

27 Jun '07

I would like to manage the symlinks in use for the whole company at a certain directory depth on our filers (FAS3050 + OnTap 7.2.2). I would like to create the following setup so that users see a single share when they browse the filer via CIFS and FTP but give them access to data spread over more than 1 aggregate, volume and qtree. Filer_1 ======= Aggregate_1 Data_volume_1 Qtree_1 All_data (single share visible to company) Real_dir_1 Symlnk_Real_dir_2 Symlnk_Real_dir_3 Symlnk_Real_dir_4 Aggregate_2 Data_volume_2 Qtree_2 Real_dir_2 Data_volume_3 Qtree_3 Real_dir_3 Data_volume_4 Qtree_4 Real_dir_4 I am aware that I need to configure the widelinks option. How do I create the symlinks from my admin host (FreeBSD) which mounts all the volumes over NFS for data management purposes? I don't want to use a Windows machine to create the links. My users are Win2K and MacOSX clients and access their data using CIFS and FTP (NFS may be used later). I have a number of samba servers with this data directory setup as a single share visible to users but data spread over a number of disks. I use the unix "ln -s" command to create the necessary symlinks on the samba servers. Feel free to point out what may be glaringly obvious. Thanks Francois

5 5

Running reallocate - how long did it take, and can you stop/pause it?
by Hadrian Baron 25 Jun '07

25 Jun '07

We're about to run a reallocate, and we were wondering what we should expect. We have a heavily (over)utilized filer with many hot disks. We are worried that this reallocate could make it unusable for the duration - however long that may be. Has anyone been through this, and also can you stop or pause a reallocate? Thanks, Hadrian Baron Network Engineer

1 1

FW: NDMP tuning on a 270c
by Lerch, Alfred 22 Jun '07

22 Jun '07

And to the list as well ________________________________ From: Lerch, Alfred Sent: Donnerstag, 21. Juni 2007 22:48 To: 'Page, Jeremy'; 'owner-toasters(a)mathworks.com' Subject: RE: NDMP tuning on a 270c Hi Jeremy, see NetApp Bug 96894: Phase I of NDMP based backups is slow fixed in 7.0.6 - so this could well be the issue you encounter regards alfred Bug Detail Bug ID 96894 Title Phase I of NDMP based backups is slow. Duplicate of Bug Severity <http://now.netapp.com/NOW/knowledge/docs/defs/boldefs.shtml#severity> 3 - Serious inconvenience Bug Status <http://now.netapp.com/NOW/knowledge/docs/defs/boldefs.shtml#status> Fixed Product <http://now.netapp.com/NOW/knowledge/docs/defs/boldefs.shtml#product> Data ONTAP Bug Type <http://now.netapp.com/NOW/knowledge/docs/defs/boldefs.shtml#type> Backup/Restore Description Formatted <http://now.netapp.com/NOW/cgi-bin/bol?Type=Plain&Display=96894> For NDMP backups with File History enabled, Phase I is slow. The extent of slowness may depend on fragmentation of the inode file and the file system. With Data Ontap 6.4 onwards, NDMP backups with File History add some processing in Phase I. This processing is required for DAR Enhancements (A restore time feature), which are a part of Data Ontap 6.4 or beyond. The slowness is attributable to performance bottlenecks in this additional processing. Workaround Formatted <http://now.netapp.com/NOW/cgi-bin/bol?Type=Plain&Display=96894> Backups without file history continue to perform as expected. For backups where performance of Phase I is bothersome, file history can be turned off temporarily until a fix is available. For a workaround to turn off the additional processing during Phase I (Offset map generation), without disabling the file history, please track bug 102211. Notes Formatted <http://now.netapp.com/NOW/cgi-bin/bol?Type=Plain&Display=96894> Related Solutions Fixed-In Version * Data ONTAP 6.4.2P4 <http://now.netapp.com/download/software/ontap/6.4.2P4/> (First Fixed) - Fixed * Data ONTAP 6.4.5 <http://now.netapp.com/download/software/ontap/6.4.5/> (GA <http://now.netapp.com/download/defs/ontap.shtml> ) - Fixed * Data ONTAP 6.5.7 <http://now.netapp.com/download/software/ontap/6.5.7/> (GA <http://now.netapp.com/download/defs/ontap.shtml> ) - Fixed * Data ONTAP 7.0.6 <http://now.netapp.com/download/software/ontap/7.0.6/> (GD <http://now.netapp.com/download/defs/ontap.shtml> ) - Fixed * Data ONTAP 7.1.2.1 <http://now.netapp.com/download/software/ontap/7.1.2.1/> (GA <http://now.netapp.com/download/defs/ontap.shtml> ) - Fixed * Data ONTAP 7.2.2 <http://now.netapp.com/download/software/ontap/7.2.2/> (GD <http://now.netapp.com/download/defs/ontap.shtml> ) - Fixed ________________________________ From: Page, Jeremy [mailto:jeremy.page@gilbarco.com] Sent: Donnerstag, 21. Juni 2007 14:02 To: Lerch, Alfred Subject: RE: NDMP tuning on a 270c 7.05. I was just in Munich Monday, had a great time. Jeremy M. Page, MCSE, CNA, CCNA _____ * email:Jeremy.Page@gilbarco.com - ( phone: 336.547.5399 - 6 fax: 336.547.5163 - ( cell: 336.601.7274 ________________________________ From: Lerch, Alfred [mailto:alfred_lerch@mentor.com] Sent: Thursday, June 21, 2007 3:26 AM To: Page, Jeremy Subject: RE: NDMP tuning on a 270c Hi Jeremy, which ONTAP version are you using? We had such an issue two years ago and it was a bug in ONTAP. (Unfortunately now.netapp.com is out of order right now so I cannot look it up.) regards alfred +====================================================================+ |Alfred Lerch Mentor Graphics Deutschland GmbH| |Network & System Administrator Arnulfstrasse 201| |IT ESC Europe D-80634 Muenchen, Germany| |email: alfred_lerch(a)mentor.com Geschäftsführer: Dean Freed| |Tel. : +49 89 57096-241 Registergericht München HRB 106955| |Mobile: +49 172 8915200 Fax : +49 89 57096-400| +====================================================================+ ________________________________ From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Page, Jeremy Sent: Mittwoch, 20. Juni 2007 14:26 Cc: toasters(a)mathworks.com Subject: RE: NDMP tuning on a 270c I guess my gripe is why does Netbackup lock a drive when it's doing the scan. I understand it can't do the backup until it knows *what* it's going to backup, the confusion on my part is why that would lock a tape. Also, for some reason (I'm not the backup guy so I am probably missing something) we need all our tapes to do a single file restore anyways, seems like you are saying that's not normal. Jeremy M. Page, MCSE, CNA, CCNA _____ * email:Jeremy.Page@gilbarco.com - ( phone: 336.547.5399 - 6 fax: 336.547.5163 - ( cell: 336.601.7274 ________________________________ From: tmac [mailto:tmacmd@gmail.com] Sent: Tuesday, June 19, 2007 2:47 PM To: Page, Jeremy Cc: toasters(a)mathworks.com Subject: Re: NDMP tuning on a 270c The Miserable File History problem.... I actually have a level 0 that takes over 8 hours to pass file history info which means the dump does not start until that point. Just for kicks, you could modify your policy to have the first line as "set hist = n" (without quotes). This will kill the file history. You will be unable to restore files (directories only) and you will not have DAR which means you will have to read the ENTIRE backup tape or tape set. Instead of looking at pure size, do a "df -h" and a "df -i" to how much and how many (files) you are backing up. You can always dived the size used by the files used to see average file size. Heck for that matter you could scan the filesystem with the filestats command and you could scan from a NFS client to see which directories are huge (I have a number of directories that are 50MB in size-> this KILLLLS a backup) On 6/19/07, Page, Jeremy <jeremy.page(a)gilbarco.com> wrote: We are backing up a 270c nightly with Netbackup via NDMP to a dual drive LTO3 machine (only one drive is used for to backup the filer). There are 2.25 TB on one head and 1.1TB on the other. For a full backup it takes about 10 hours to write to tape, which I don't think is too bad (larger volumes hit 31200 KB/sec reported by Netbackup), but the differentials take 5 hours to run,even though the delta on our data is very small. I suspect this is more of a Netbackup issue then a filer based one but wanted to throw it out there incase there was something I should look at on the host side. This is over a normal gigE switched network connection with the default settings on the filer, network-wise. We are not using virtual interfaces, both heads have a single 1 gig connection to the LAN. Any suggestions or inventive flames are welcome. This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately. -- --tmac RedHat Certified Engineer This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately. This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

1 0

RE: faulty snmp output?
by Kenneth Heal 21 Jun '07

21 Jun '07

Hallo AndreasThis sounds like bug 68758:http://now.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=68758The text of the bug is:=====The SNMP MIB entry dfKBytesTotal was deprecated in ONTAP 6.0With the advent of larger capacity volumes, the value of dfKBytesTotal that is retrieved via snmp can be a negative number because the SNMP protocol is limited to a 4 byte integer. Instead use dfHighTotalKBytes and dfLowTotalKBytes to retrieve the whole df value.For ONTAP 6.0 and above please use dfHighTotalKBytes and dfLowTotalKBytes which represent the high and low 32 bits of the total df value. The actual total KBbytes can be determined by the psuedocode:uint8 df_high = dfHighTotalKBytes;uint8 df_low = dfLowTotalKBytes;uint8 df = (df_high << 32) | df_low; /* or (df_high << 32) + df_low; */For systems prior to ONTAP 6.0, if dfKBytesTotal returns a negative number: Use the 'df' command on the console or via rsh to obtain the actual value, or programmatically alter the code doing the SNMP get to understand that a negative value for dfKBytesTotal is a wrap-around condition.===== Kindest regards,Kenneth HealStorage ConsultantSenet Eindhoven bv> Subject: faulty snmp output?> Date: Thu, 21 Jun 2007 18:05:42 +0200> From: andreas.buerger(a)wincor-nixdorf.com> To: toasters(a)mathworks.com> > Hi,> > I am just testing with some SNMP on our Filers.> During some tests I mentioned something, I can't explain.> > The SNMP query dfKBytesTotal returns negative output on some volumes:> > > snmpget -v 1 -t 30 -Osq -c public FILER> NETWORK-APPLIANCE-MIB::dfKBytesTotal.19> dfKBytesTotal.19 -2071986176> dfKBytesTotal.20 0> > The equal command directly issued from the filer returns the following:> > > ssh FILER df -k VOLUME> Filesystem total used avail capacity Mounted> on> /vol/VOLUME/ 2222981120KB 2030845132KB 192135988KB 91%> /vol/homes02/> /vol/VOLUME/.snapshot 0KB 40077688KB 0KB ---%> /vol/homes02/.snapshot> > Does anybody have an idea why the snmp output is negative and not same> as the df -k from the filer?> > Here some information of the test environment:> > MIB Version: Version 1.19.3, March 2007 (on filer and localhost)> Filer: FAS3050 with OnTap 7.0.2> > > Best regards> Andreas> > -----------------------------------------> Wincor Nixdorf Int. GmbH> WN CIO4 Computing & Storage> Heinz-Nixdorf-Ring 1> 33106 Paderborn> > Phone: +49 5251 693 4215> Fax: +49 5251 693 4200> Mail: andreas.buerger(a)wincor-nixdorf.com> -----------------------------------------> > > > > > > _________________________________________________________________ Make every IM count. Download Windows Live Messenger and join the i’m Initiative now. It’s free. http://im.live.com/messenger/im/home/?source=TAGWL_June07

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faulty snmp output?
by Buerger, Andreas 21 Jun '07

21 Jun '07

Hi, I am just testing with some SNMP on our Filers. During some tests I mentioned something, I can't explain. The SNMP query dfKBytesTotal returns negative output on some volumes: > snmpget -v 1 -t 30 -Osq -c public FILER NETWORK-APPLIANCE-MIB::dfKBytesTotal.19 dfKBytesTotal.19 -2071986176 dfKBytesTotal.20 0 The equal command directly issued from the filer returns the following: > ssh FILER df -k VOLUME Filesystem total used avail capacity Mounted on /vol/VOLUME/ 2222981120KB 2030845132KB 192135988KB 91% /vol/homes02/ /vol/VOLUME/.snapshot 0KB 40077688KB 0KB ---% /vol/homes02/.snapshot Does anybody have an idea why the snmp output is negative and not same as the df -k from the filer? Here some information of the test environment: MIB Version: Version 1.19.3, March 2007 (on filer and localhost) Filer: FAS3050 with OnTap 7.0.2 Best regards Andreas ----------------------------------------- Wincor Nixdorf Int. GmbH WN CIO4 Computing & Storage Heinz-Nixdorf-Ring 1 33106 Paderborn Phone: +49 5251 693 4215 Fax: +49 5251 693 4200 Mail: andreas.buerger(a)wincor-nixdorf.com -----------------------------------------

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LACP
by Carl Howell 20 Jun '07

20 Jun '07

Does anyone know what the correct LACP settings are for connectivity from a Cisco 6509 to a filer running 7.2.2? On, off, active, or passive? I don't see this referenced anywhere in the literature. Thanks, --Carl

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NDMP tuning on a 270c
by Page, Jeremy 20 Jun '07

20 Jun '07

We are backing up a 270c nightly with Netbackup via NDMP to a dual drive LTO3 machine (only one drive is used for to backup the filer). There are 2.25 TB on one head and 1.1TB on the other. For a full backup it takes about 10 hours to write to tape, which I don't think is too bad (larger volumes hit 31200 KB/sec reported by Netbackup), but the differentials take 5 hours to run,even though the delta on our data is very small. I suspect this is more of a Netbackup issue then a filer based one but wanted to throw it out there incase there was something I should look at on the host side. This is over a normal gigE switched network connection with the default settings on the filer, network-wise. We are not using virtual interfaces, both heads have a single 1 gig connection to the LAN. Any suggestions or inventive flames are welcome. This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

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DFM network stats with vifs
by Leeds, Daniel 19 Jun '07

19 Jun '07

we use DFM 3.5, the network traffic i/o graphs in DFM display nothing for us--they never have in previous versions either. we use multi vifs across several interfaces and then create a viftrunk with tagged vlans. has anyone setup similar and gotten network traffic graphing to work in dfm? -- Daniel Leeds Senior Systems Administrator Edmunds.com

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Cifs audit logs
by Jon Hill 15 Jun '07

15 Jun '07

We've just switched from a Windows file server to a 3020c and are experiencing significant issues with cifs auditing. We have several directories that need to be monitored and we have turned on auditing via NTFS (right-click | properties | security | advanced | auditing). On the old file server we used a third-party tool (ScriptLogic) to monitor CIFS access but it only works on Windows servers. The problem we have is if a user opens up one of the monitored folders, the filer spits out about 300 events for each file. There are three or maybe four slight differences between the 300 events (some might refer to SMBRead and others SMBReadEA, for example), but at least 50 events are completely identical to each other in every way. We've been auditing about 19,000 files (<4GB) for a week and we already have 10GB of .evt files. We tried limiting the audits to List Folder / Read Data, Create Files / Write Data, Create Folders / Append Data, Delete, Change Permissions and Take Ownership, and we applied only to files. It didn't improve things from what we could see. NetApp support told us to contact MS but that didn't get us anywhere so now we're looking for third-party alternatives. Can anyone suggest a good tool that can gather .evt files from a specified directory, weed out duplicates and store the end result in either a database or another .evt file?

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