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13531 discussions

A-SIS (NetApp De-Duplication)
by Peter W. Osel 01 Aug '07

01 Aug '07

Hello *, we are in the process of consolidating several NetApp filers and NearStore systems onto a single FAS30x0HA system. The system's main function is to serve primary data (part from FCAL disks, part from SATA disks), it's secondary function is to act as the NearStore system for a second site, storing the copy of the other site's data on SATA disks. Now we would like to try A-SIS to reduce the required physical storage. It looks as if in order to add A-SIS (a_sis license), I also need to install the NearStore license. Now my concern is, that by giving the system a NearStore personality I might impact the system's primary role - serving primary storage data to users. Has anyone experience with how a system changes when the NearStore licenses is enabled? Any negative impact for serving data to users? Is the NearStore personality activated by installing the nearstore license, or could we install the nearstore and a_sis license, but keep the nearstore personality deactivated? For data that we volume SnapMirror, would we need an A-SIS license on both sides - source and target system? Will the volume SnapMirror transfer less data (assuming that A-SIS de-dupe of data saved some of the required data blocks)? yes?!) Any other experience (good or bad) or concerns when using A-SIS? Any reason to not use it on all (home directory type data) volumes? Any limitation encountered? Any experience how much savings can be achieved (e.g. for home directories volumes, volume storing tons of application software packages)? Cheers --pwo -- Peter W. Osel eMail: pwo(a)Qimonda.COM Principal Development Systems Phone: +1.919.677.6333 Qimonda North America Corp. Cell : +1.408.348.6735 3000 CentreGreen Way eFax : +1.804.952.3905 Cary, NC 27513-5760, USA www : http://pwo.de/

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Re: A-SIS (NetApp De-Duplication)
by Reinoud Reynders 28 Jul '07

28 Jul '07

Hi Roger, Also a posible setup: the source is on a regular FAS system without nearstore personality and asis, but for DR you use qtree snapmirror to a nearstore. Your can turn on asis only on the destination. . You don't save space on the source, but you save a lot on the destination site. Greetings, Reinoud ----- Original Message ----- From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> To: Sels Roger <roger.sels(a)uptime.be> Cc: toasters(a)mathworks.com <toasters(a)mathworks.com> Sent: Sat Jul 28 12:14:38 2007 Subject: Re: A-SIS (NetApp De-Duplication) On Jul 28, 2007, at 2:17 AM, Sels Roger wrote: > > Does this mean that the amount of replicated data is also reduced when > you SM a A-SIS source volume to a filer running A-SIS as well? > I hope that you mean this, because that would be great ;-) Yes -- that's what he means! When you do a VSM of a volume with A-SIS enabled, you get corresponding bandwidth savings as the volume is transferred in its deduplicated state. -- Michael Barrow michael at michaelbarrow dot name

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RE: A-SIS (NetApp De-Duplication)
by Sels Roger 28 Jul '07

28 Jul '07

Hi Vaugh, << In order to replicate de-duplicated data one will require A-SIS licenses on both the sopurce and destination FAS systems. VSM replication is my personal preference. >> Does this mean that the amount of replicated data is also reduced when you SM a A-SIS source volume to a filer running A-SIS as well? I hope that you mean this, because that would be great ;-) Roger -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of M. Vaughn Stewart Sent: za 28 jul 07 1:13 To: Peter W. Osel Cc: toasters(a)mathworks.com Subject: Re: A-SIS (NetApp De-Duplication) Peter, Hello and how are you my friend? The enabling of the Nearstore personality does not reduce the performance of a system as long as your maintain the number of replication streams (SnapMirror / SnapVault) to the non Nearstore limits for that platform. You can reference NOW for the limits. In order to replicate de-duplicated data one will require A-SIS licenses on both the sopurce and destination FAS systems. VSM replication is my personal preference. Vaughn Peter W. Osel wrote: > Hello *, > > we are in the process of consolidating several NetApp filers and > NearStore systems onto a single FAS30x0HA system. The system's main > function is to serve primary data (part from FCAL disks, part from > SATA disks), it's secondary function is to act as the NearStore system > for a second site, storing the copy of the other site's data on SATA disks. > > Now we would like to try A-SIS to reduce the required physical > storage. > > It looks as if in order to add A-SIS (a_sis license), I also need to > install the NearStore license. Now my concern is, that by giving the > system a NearStore personality I might impact the system's primary > role > - serving primary storage data to users. > > Has anyone experience with how a system changes when the NearStore > licenses is enabled? Any negative impact for serving data to users? > > Is the NearStore personality activated by installing the nearstore > license, or could we install the nearstore and a_sis license, but keep > the nearstore personality deactivated? > > > For data that we volume SnapMirror, would we need an A-SIS license on > both sides - source and target system? > > Will the volume SnapMirror transfer less data (assuming that A-SIS > de-dupe of data saved some of the required data blocks)? > yes?!) > > Any other experience (good or bad) or concerns when using A-SIS? > > Any reason to not use it on all (home directory type data) volumes? > > Any limitation encountered? > > Any experience how much savings can be achieved (e.g. for home > directories volumes, volume storing tons of application software > packages)? > > > Cheers > --pwo > > > -- > Peter W. Osel eMail: pwo(a)Qimonda.COM > Principal Development Systems Phone: +1.919.677.6333 > Qimonda North America Corp. Cell : +1.408.348.6735 > 3000 CentreGreen Way eFax : +1.804.952.3905 > Cary, NC 27513-5760, USA www : http://pwo.de/ > >

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How to reinstate "quota logmsg" settings after a reboot
by Chris Thompson 28 Jul '07

28 Jul '07

ONTAP 7.1.2 (and earlier versions) doesn't preserve "quota logmsg" settings over a reboot. There's a bug recorded for this (168726) at NOW, but it's only fixed in various 7.2.x releases, which I can't go to because I am stuck on an F8xx series filer :-( I tried putting an appropriate "quota logmsg" command at the end of /etc/rc (after "savecore"), but this didn't work for some reason. There's nothing in /etc/messages or /etc/log/auditlog that indicates it even tried to obey it. Any ideas? -- Chris Thompson Email: cet1(a)cam.ac.uk

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RE: Accessing snapmirrored (read only) LUN from Windows?
by Learmonth, Peter 27 Jul '07

27 Jul '07

Hi Steven I don't think Windows can mount NTFS read-only. You need to either break the mirror or FlexClone the dest vol. If using QSM, a LUN clone might work, but I haven't tried it. If you FlexClone, you should create a separate snapshot on the source to use as the baseline. If you use one of the SnapMirror snapshots, it could break SnapMirror (or so I've seen - others have said it depends on which SM snap you use). With vol SM, the dest is read-only which is why you put the snap on the source and let it replicate over. Share and Enjoy! Peter ... Sent from one of those phone+email doohicky things... I reserve the right to be wrong. -----Original Message----- From: Stephen C. Losen [mailto:scl@sasha.acc.virginia.edu] Sent: Friday, July 27, 2007 06:42 AM Pacific Standard Time To: toasters(a)mathworks.com Subject: Accessing snapmirrored (read only) LUN from Windows? We are working on a project that is housed in two separate buildings for disaster recovery. In each building we have a Windows server, a FAS270 filer and a FC SAN switch. The switches are not directly connected to each other, but we have long fibre runs so that each Windows server is connected to both switches. Each filer is connected to just its local FC switch. (This is a limitation of the FAS270, which has only one FC SAN port.) One filer is primary and the other is backup. On the primary filer I have a large volume containing a large LUN and this volume is being snapmirrored (synchronous) to the backup filer over ethernet. Both Windows servers can "see" both LUNs. We are using Windows clustering so that if the primary Windows server fails, the backup server will take over, using the primary LUN. If the primary netapp (or switch) fails, then we will need to manually intervene to cut over to the backup filer and LUN. So here is my question (at last). Is it possible to access both the primary LUN and the read only backup LUN on a Windows server? Windows seems to be confused by the read only LUN and I am seeing errors on the backup filer saying that Windows is trying to write to the LUN. I'm not a Windows guy, but is there any way to look at the files on the read only LUN from Windows? This isn't necessary for normal operations, I'm just curious. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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Accessing snapmirrored (read only) LUN from Windows?
by Stephen C. Losen 27 Jul '07

27 Jul '07

We are working on a project that is housed in two separate buildings for disaster recovery. In each building we have a Windows server, a FAS270 filer and a FC SAN switch. The switches are not directly connected to each other, but we have long fibre runs so that each Windows server is connected to both switches. Each filer is connected to just its local FC switch. (This is a limitation of the FAS270, which has only one FC SAN port.) One filer is primary and the other is backup. On the primary filer I have a large volume containing a large LUN and this volume is being snapmirrored (synchronous) to the backup filer over ethernet. Both Windows servers can "see" both LUNs. We are using Windows clustering so that if the primary Windows server fails, the backup server will take over, using the primary LUN. If the primary netapp (or switch) fails, then we will need to manually intervene to cut over to the backup filer and LUN. So here is my question (at last). Is it possible to access both the primary LUN and the read only backup LUN on a Windows server? Windows seems to be confused by the read only LUN and I am seeing errors on the backup filer saying that Windows is trying to write to the LUN. I'm not a Windows guy, but is there any way to look at the files on the read only LUN from Windows? This isn't necessary for normal operations, I'm just curious. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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CIFS shares presentation to users
by Paul Letta 27 Jul '07

27 Jul '07

Hello, We we getting ready to consolidate several older filers onto a single FAS3040. Each of these older filers had several CIFS shares exposed. My users are used to going to the Run box in windows and typing \\filerA to get filersA's shares and \\filerB to get filer B's shares and so on. But now there is just \\Newfiler. This produces a list of all the CIFS shares that used to be on several different filers. Is there a way to group several cifs shares together and present them in a folder, or another share ? I would like to be able to go to \\NewFiler, and get a window that has a few folders, each of which holds several shares. I don't think this can be done, but I thought I would ask here anyways. Thanks, Paul

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Snapshot delete
by Steffen Kammerer 26 Jul '07

26 Jul '07

Hi Toasters List, we create manually snapshots to make backups if we deploy new software releases. Now I want to delete automatically all snapshots older than 6 hours, because of special restrictions. I read the manual about snap autodelete but I cant find an option. Has anyone experience in those things? Greetings Steffen

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RE: usermapping UNIX <-> NT
by Willeke, Jochen 26 Jul '07

26 Jul '07

Hi, we have a directory service which is our AD, but only for windows. But maybe this is not enough.... Do we need a special one for the unix side, too?? Rgds Jochen -----Original Message----- From: tmac [mailto:tmacmd@gmail.com] Sent: Tuesday, July 24, 2007 3:13 PM To: Willeke, Jochen Subject: Re: usermapping UNIX <-> NT IF you are not using a name service (like LDAP or NIS), then yes it is expected. Every CIFS SID must map to some UNIX UID. If you look at your password file, you probably have at least the "pcuser" in there, which may even be 65534. From your original post, I would say this is the case. Either install a name service, or create a password file: username::UID:GID::: That is all you need unless you want to get fancy with FTP or something. You may need to terminate current CIFS sessions to force them to re-authenticate properly. On 7/24/07, Willeke, Jochen <Jochen.Willeke(a)wincor-nixdorf.com> wrote: > Hi colleagues, > > i found out something strange... > > After setting wafl.default_nt_user "" > i ended up, that no User from Windows was able to access shares, because > it seems that the filer maps every user from our Domain to "pcuser". > > I was never aware of that fact....Is this correct behaviour?? > > Rgds > > Jochen > > -----Original Message----- > From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] > On Behalf Of Willeke, Jochen > Sent: Monday, July 23, 2007 3:17 PM > To: toasters(a)mathworks.com > Subject: FW: usermapping UNIX <-> NT > > Hi, > > wafl.default_nt_user > > was it.... > > No set it to wafl.default_nt_user "" > > and it is working lika a charm :D > > Rgds and thanks to all > > Jochen > > -----Original Message----- > From: Parisi, Justin [mailto:Justin.Parisi@netapp.com] > Sent: Monday, July 23, 2007 3:02 PM > To: Willeke, Jochen > Subject: RE: usermapping UNIX <-> NT > > Check your options for mappings from PC users - options > cifs.guest_account and options wafl.default_nt_user - you may have > nobody as an entry in one of those options... > > -----Original Message----- > From: Willeke, Jochen [mailto:Jochen.Willeke@wincor-nixdorf.com] > Sent: Monday, July 23, 2007 7:02 AM > To: toasters(a)mathworks.com > Subject: usermapping UNIX <-> NT > > Hi toasters, > > we currently have a strange problem. We have setup a volume with mixed > security style and exports and CIFS shares on it. I have made an entry > in the usermap.cfg like this > > Domain\jochen.willeke == utest > > In filers local passwd utest has UID 1234 (only for a test). > Mapping checked with wcc seems to work well, but when i create a folder > from the windows side with my user jochen.willeke and then check with > "ls -n" from a unix host, it shows me the UID and group ID from nobody > (65534). > > Has anybody an idea where my mistake is?? > > Best Regards and thanks in advance > > Jochen > > > -- --tmac RedHat Certified Engineer

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RE: NetApp Thin Provisioning and VMware ESX
by Kenneth Heal 26 Jul '07

26 Jul '07

HiDon't know if you have seen http://www.netapp.com/library/tr/3428.pdf. This talks a bit more about ESX and Netapp together.Reading this description it sounds like there may be old snapshots and/or space reservations at play here. In the case of the former snapshot auto-deletion may prove to be a help.Could you check this and grab us a df output?I haven't tried this combo, so there may be someone out there who has already done this and could say more.regardsKenneth HealStorage ConsultantSenet Eindhoven bvSubject: NetApp Thin Provisioning and VMware ESXDate: Tue, 17 Jul 2007 22:54:03 +0200From: drenthjd(a)wxs.nlTo: toasters(a)mathworks.com Hi Toasters, We created something of an interesting dilemma for ourselves. The original problem was the lack of a means to extend existing VMFS LUNs through ESX without an extent and or downtime. The idea was to use NetApp thin provisioning as a way to offer up a large disk to ESX without the need to back that up with real disks, as a way to monitor real disk usage we created a hard volume and monitor with df the real use of disk against a hard limit (being the volume). So a 1 TB Lun (thin) was created inside a 200 GB (hard) volume, subsequently we wanted to keep track of ESX 3's usage through controlling the size of the VMDK files we would create. As this environment hosts desktops and was a testing ground at first there were a whole bunch of VMDK being created and destroyed. The situation we end up with is VMware thinking it has 60 GB in use of a 1 TB LUN while NetApp reports 180 GB in use of 200 GB (being the hard limit at this time). Basically the question becomes whether we can force ESX to actually reuse any of the [netapp in use] - [real use according to ESX] = 130 GB of space. Probably we need to clean up and start over with a new clean LUN, which we could then either hard provision and forget about thin provisioning altogether, because in our scenario it is no help. A broader question becomes were we went wrong? Our situation seems to suggest that we waste a whole lot of disk space - which VMware wont reuse on its own, and which NetApp can't touch (how would it know it was now freed up space) In that sense thin provisioning is just a space waster in an environment with VMDK's being destroyed and recreated from scratch. Of course we could always go flexcloning... but that would force netapp world on a whole lot of admins. Best regards, Delorean _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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RE: AW: NetApp and NetBackup
by Sels Roger 25 Jul '07

25 Jul '07

Hi, It's obvious that a multitier NetApp solution is the best way to go ;-) But, an alternative would be using NDMP, and NetBackup is in that sense a very good choice. This way you can dump the snapshots on tape. In terms of tape connectivity you have different option: direct into your NetApp, into a fabric or over ip. For more information, please refer to "Data Protection Solutions Overview" by Nicholas Wilhelm-Olsen | Network Appliance | TR-3131. Cheers, Roger -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Brett Clarke Sent: wo 25 jul 07 10:47 To: toasters(a)mathworks.com Subject: RE: AW: NetApp and NetBackup Thanks for the info, Walter. I think you are right - SnapVault is definitely the way to go. The million dollar question is, will I be able to justify the extra expense to management??? :) (keep your fingers crossed for me). Cheers! Brett -----Original Message----- From: Kießl Walter [mailto:kiessl@heidenhain.de] Sent: Wednesday, 25 July 2007 5:46 PM To: Brett Clarke; toasters(a)mathworks.com Subject: AW: NetApp and NetBackup Hi Brett, we use NetApps Snapvault product to backup the Exchange-LUNs to a R200. It's a backup-to-disk solution and shortens backup-time and backup ressource consumption dramatically (snapvault is based upon snapshots and transfers only the changed blocks). In my opinion it's easier to admin because you need not to mount snapshots on a backupserver via script. Once implemented Snapvault copies your (consistent SME)snapshots each day without additional work to do. Regards Walter Kiessl -----Ursprüngliche Nachricht----- Von: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] Im Auftrag von Brett Clarke Gesendet: Mittwoch, 25. Juli 2007 09:00 An: toasters(a)mathworks.com Betreff: RE: NetApp and NetBackup We want to backup the filesystems on the lun. Having done some more investigation, it appears the NetBackup Snapshot integration only works with CIFS/NFS shares, not with LUN's. Which I guess leads me into my next train of thought. How are people performing backups to tape of EX07 systems? Currently we schedule regular snapshots using SME, and then run a script on a backup server to mount the snapshots as local drives and perform local filesystem backups on the backup server. To me this feels a bit cludgy, and not at all "elegant". -----Original Message----- From: Blake Golliher [mailto:thelastman@gmail.com] Sent: Wednesday, 25 July 2007 3:54 PM To: Brett Clarke Cc: toasters(a)mathworks.com Subject: Re: NetApp and NetBackup Are you trying to backup the luns file or the filesystem on the lun from the client point of view? On 7/24/07, Brett Clarke <brett.clarke(a)dpworld.com> wrote: > > > > > Hi Everyone, > > > > We have not long had our FAS3020's, and have just purchased NetBackup > to start putting snapshots to tape. NBU was chosen because of its > Advanced Client's NetApp integration (and because our NetApp reps recommended it!). > We're struggling to get the whole thing talking, and the Symantec > consultants on site are struggling as well. Has anyone here > implemented a similar configuration before, and would be able to let > on any tips/traps/hints picked up along the way??? Or anyone know of > any online resources that might help? (NOW doco focuses on Oracle > implementations using NetBackup). > > > > A bit of background would help I guess - We're running clustered > 3020C's, with about a dozen hosts all attached via iSCSI. We have a > mix of Exchange 2007, SQL 2005 (both currently using SnapManager to > schedule snapshots), plus some standalone infrastructure servers > (using snapdrive and the cli the schedule snapshots). We're talking > OnTAP 7.2.2, and NetBackup 6.0 MP4. Let me know if there is other info I should include. > > > > Cheers everyone! > > > > Brett Clarke > Senior Linux/Unix Administrator > DP World Australia > ________________________________ > This e-mail and its attachments are intended for the named addressee > only and no liability is accepted for use or reliance on any part of > this e-mail by any other person. It is confidential, may be subject > to privilege and is also subject to copyright. No part of it should > be reproduced, adapted or communicated without the written consent of > the copyright owner. Any confidentiality or privilege is not waived > or lost because this e-mail has been received by you and you are not > the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. > > Please note that e-mails can be interfered with, can contain computer > viruses or other defects and may not be successfully replicated on > other systems. This footnote confirms that this e-mail message has > been swept for the presence of computer viruses. However whilst the > sender has taken reasonable precautions to minimise the risk of this > email and any attachment containing viruses, we cannot accept > liability for any such viruses and we give no warranties in relation > to any of the above matters. If you have any doubts about the > authenticity of this e-mail please contact the sender immediately. No > responsibility is accepted for any changes made to a document other > than those made by the sender. > This e-mail and its attachments are intended for the named addressee only and no liability is accepted for use or reliance on any part of this e-mail by any other person. It is confidential, may be subject to privilege and is also subject to copyright. No part of it should be reproduced, adapted or communicated without the written consent of the copyright owner. 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No responsibility is accepted for any changes made to a document other than those made by the sender. ------------------------------------------------------------------------------------------------------- Registergericht: Traunstein / Code of Register HRB 275 Sitz / Head Office: Traunreut Aufsichtsratsvorsitzender / Chairman of Supervisory Board: Rainer Burkhard Geschäftsführung / Managing Director: Thomas Sesselmann This e-mail and its attachments are intended for the named addressee only and no liability is accepted for use or reliance on any part of this e-mail by any other person. It is confidential, may be subject to privilege and is also subject to copyright. No part of it should be reproduced, adapted or communicated without the written consent of the copyright owner. Any confidentiality or privilege is not waived or lost because this e-mail has been received by you and you are not the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. Please note that e-mails can be interfered with, can contain computer viruses or other defects and may not be successfully replicated on other systems. This footnote confirms that this e-mail message has been swept for the presence of computer viruses. However whilst the sender has taken reasonable precautions to minimise the risk of this email and any attachment containing viruses, we cannot accept liability for any such viruses and we give no warranties in relation to any of the above matters. If you have any doubts about the authenticity of this e-mail please contact the sender immediately. No responsibility is accepted for any changes made to a document other than those made by the sender.

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NetApp and NetBackup
by Brett Clarke 25 Jul '07

25 Jul '07

Hi Everyone, We have not long had our FAS3020's, and have just purchased NetBackup to start putting snapshots to tape. NBU was chosen because of its Advanced Client's NetApp integration (and because our NetApp reps recommended it!). We're struggling to get the whole thing talking, and the Symantec consultants on site are struggling as well. Has anyone here implemented a similar configuration before, and would be able to let on any tips/traps/hints picked up along the way??? Or anyone know of any online resources that might help? (NOW doco focuses on Oracle implementations using NetBackup). A bit of background would help I guess - We're running clustered 3020C's, with about a dozen hosts all attached via iSCSI. We have a mix of Exchange 2007, SQL 2005 (both currently using SnapManager to schedule snapshots), plus some standalone infrastructure servers (using snapdrive and the cli the schedule snapshots). We're talking OnTAP 7.2.2, and NetBackup 6.0 MP4. Let me know if there is other info I should include. Cheers everyone! Brett Clarke Senior Linux/Unix Administrator DP World Australia ________________________________ This e-mail and its attachments are intended for the named addressee only and no liability is accepted for use or reliance on any part of this e-mail by any other person. It is confidential, may be subject to privilege and is also subject to copyright. No part of it should be reproduced, adapted or communicated without the written consent of the copyright owner. Any confidentiality or privilege is not waived or lost because this e-mail has been received by you and you are not the intended recipient. If you are not the intended recipient, please let us know by reply e-mail. Please note that e-mails can be interfered with, can contain computer viruses or other defects and may not be successfully replicated on other systems. This footnote confirms that this e-mail message has been swept for the presence of computer viruses. However whilst the sender has taken reasonable precautions to minimise the risk of this email and any attachment containing viruses, we cannot accept liability for any such viruses and we give no warranties in relation to any of the above matters. If you have any doubts about the authenticity of this e-mail please contact the sender immediately. No responsibility is accepted for any changes made to a document other than those made by the sender.

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FW: usermapping UNIX <-> NT
by Willeke, Jochen 24 Jul '07

24 Jul '07

Hi, wafl.default_nt_user was it.... No set it to wafl.default_nt_user "" and it is working lika a charm :D Rgds and thanks to all Jochen -----Original Message----- From: Parisi, Justin [mailto:Justin.Parisi@netapp.com] Sent: Monday, July 23, 2007 3:02 PM To: Willeke, Jochen Subject: RE: usermapping UNIX <-> NT Check your options for mappings from PC users - options cifs.guest_account and options wafl.default_nt_user - you may have nobody as an entry in one of those options... -----Original Message----- From: Willeke, Jochen [mailto:Jochen.Willeke@wincor-nixdorf.com] Sent: Monday, July 23, 2007 7:02 AM To: toasters(a)mathworks.com Subject: usermapping UNIX <-> NT Hi toasters, we currently have a strange problem. We have setup a volume with mixed security style and exports and CIFS shares on it. I have made an entry in the usermap.cfg like this Domain\jochen.willeke == utest In filers local passwd utest has UID 1234 (only for a test). Mapping checked with wcc seems to work well, but when i create a folder from the windows side with my user jochen.willeke and then check with "ls -n" from a unix host, it shows me the UID and group ID from nobody (65534). Has anybody an idea where my mistake is?? Best Regards and thanks in advance Jochen e this > > > > Domain\jochen.willeke == utest > > > > In filers local passwd utest has UID 1234 (only for a test). > > Mapping checked with wcc seems to work well, but when i create a > folder > > from the windows side with my user jochen.willeke and then check with > > "ls -n" from a unix host, it shows me the UID and group ID from nobody > > (65534). > > > > Has anybody an idea where my mistake is?? > > > > Best Regards and thanks in advance > > > > Jochen

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usermapping UNIX <-> NT
by Willeke, Jochen 23 Jul '07

23 Jul '07

Hi toasters, we currently have a strange problem. We have setup a volume with mixed security style and exports and CIFS shares on it. I have made an entry in the usermap.cfg like this Domain\jochen.willeke == utest In filers local passwd utest has UID 1234 (only for a test). Mapping checked with wcc seems to work well, but when i create a folder from the windows side with my user jochen.willeke and then check with "ls -n" from a unix host, it shows me the UID and group ID from nobody (65534). Has anybody an idea where my mistake is?? Best Regards and thanks in advance Jochen

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VMware ESX and NFS Performance issues at mount-time (was RE: NetApp Thin Provisioning and VMware ES
by Kenneth Heal 20 Jul '07

20 Jul '07

Hi JackNo, this is not normal.My first suspicion would be network connectivity problems, as NFS is quite sensitive to under/bad- performing networks.When tried mounting the export from another box, was the other box in the same subnet as your ESX machine?The other thing to of course check out is if you have configured virtual switches and virtual network architecture on the ESX machine.Depending on your situation (whether you are on-site and which bit of the network are mission critical and so on) I would first of all try putting a laptop or another box on the same place as the ESX server originally was, give it the same IP address and use a non-virtualised Linux/Un*x and see if you are able to mount the export successfully. This would then allow you to include/exclude ESX and ESX virtual infrastructure on the one hand and actual network infrastructure as the source of the problem.I would also check the filer messages log from the time you are trying to mount the system, as this may also reveal clues as to what is going on.Let us know how you get on or if this proves not feasible =(e.g. remote site)... maybe others on this dl also have some suggestions.Kindest regardsKennethKenneth HealStorage ConsultantSenet Eindhoven bv> Date: Thu, 19 Jul 2007 07:03:37 -0400> From: jack1729(a)gmail.com> To: mvstew(a)gmail.com> CC: drenthjd(a)wxs.nl; kheal(a)hotmail.com; toasters(a)mathworks.com> Subject: Re: NetApp Thin Provisioning and VMware ESX> > I am new to using esx on nfs. I have create an nfs export but when I > try to mount it from the esx box, it is really slow - it takes 2- 3 > minutes to mount?> > I assume that isn't normal, but I am not sure where to start looking for > problems. I assume it is probably doing something and then waits until > a timeout occurs before proceeding with the mount. I can nfs mount the > same filer / export on another box no problem (i.e. quickly) _________________________________________________________________ Play free games, earn tickets, get cool prizes! Join Live Search Club. http://club.live.com/home.aspx?icid=CLUB_wlmailtextlink

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Lessons Learned - Upgrade to 7.2.2 (i2p)
by Glenn Walker 19 Jul '07

19 Jul '07

While the subject is 'i2p', this isn't an email telling you about the mapping that causes some high utilization, rather it is about the aftermath of the i2p mapping process. I recently performed an upgrade of some of our nearstore systems (used for email compliance, among other things), and was expecting a pretty serious utilization curve while the i2p mapping was performed as part of the upgrade (we upgraded from 7.0.6, not 7.1.X). This came and passed with high utilization of CPU and DISK, but no real issues. However, the i2p mapping apparently keeps the inode-2-path map for every file\inode in the metadata - we have volumes with snaplocked data in the terabytes, the most heavily utilized of which is about 110million files (the 2nd highest utilized is about 82million). As this data has been marked as 'archive' in the Enterprise Vault system, it isn't being written to anymore, so I'm not terribly concerned with the snapmirror update taking a while - however, it is throttled down pretty low as our WAN is not yet up to snuff (coming later this year). Apparently, because i2p touches each inode, we have about 110million*4KB to transfer (~420GB) for the 'update' to our 4.2TB volume. Likewise, the 3.2TB volume with 82million files had about 313GB to transfer. If you have volumes with a significant amount of files, be aware that the snapmirror update after the i2p process completes post-7.2.2 upgrade (or 7.1.1 even, I suppose) will be fairly significant in size. Hope this helps some of you out there so that you are not caught unaware. 'evening Glenn

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NetApp Thin Provisioning and VMware ESX
by drenthjd＠wxs.nl 17 Jul '07

17 Jul '07

Hi Toasters, We created something of an interesting dilemma for ourselves. The original problem was the lack of a means to extend existing VMFS LUNs through ESX without an extent and or downtime. The idea was to use NetApp thin provisioning as a way to offer up a large disk to ESX without the need to back that up with real disks, as a way to monitor real disk usage we created a hard volume and monitor with df the real use of disk against a hard limit (being the volume). So a 1 TB Lun (thin) was created inside a 200 GB (hard) volume, subsequently we wanted to keep track of ESX 3's usage through controlling the size of the VMDK files we would create. As this environment hosts desktops and was a testing ground at first there were a whole bunch of VMDK being created and destroyed. The situation we end up with is VMware thinking it has 60 GB in use of a 1 TB LUN while NetApp reports 180 GB in use of 200 GB (being the hard limit at this time). Basically the question becomes whether we can force ESX to actually reuse any of the [netapp in use] - [real use according to ESX] = 130 GB of space. Probably we need to clean up and start over with a new clean LUN, which we could then either hard provision and forget about thin provisioning altogether, because in our scenario it is no help. A broader question becomes were we went wrong? Our situation seems to suggest that we waste a whole lot of disk space - which VMware wont reuse on its own, and which NetApp can't touch (how would it know it was now freed up space) In that sense thin provisioning is just a space waster in an environment with VMDK's being destroyed and recreated from scratch. Of course we could always go flexcloning... but that would force netapp world on a whole lot of admins. Best regards, Delorean

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FW: GREETING CARD EMAILS
by Maglinger, Paul 17 Jul '07

17 Jul '07

Sorry guys. Don't know how your address got attached to this... Paul ________________________________ From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Maglinger, Paul Sent: Tuesday, July 17, 2007 3:02 PM To: pmaglinger(a)inetmail.att.net; sendme18roses(a)yahoo.com; samus_aran5506(a)juno.com; cal6014(a)evansville.net; NetApps list server; Stan Maglinger Subject: GREETING CARD EMAILS Importance: High Be very careful in opening an email stating "You've received a greeting ecard from a School friend!" or some other subject regarding an E-Card. If it is not from someone you know I advise you to delete the email. Some will even say that they were sent by your "mom" or "brother". The link inside the email will take you to a malicious site. -Paul

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GREETING CARD EMAILS
by Maglinger, Paul 17 Jul '07

17 Jul '07

Be very careful in opening an email stating "You've received a greeting ecard from a School friend!" or some other subject regarding an E-Card. If it is not from someone you know I advise you to delete the email. Some will even say that they were sent by your "mom" or "brother". The link inside the email will take you to a malicious site. -Paul

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110v PDUs for NetApp Racks
by Holland, William L 17 Jul '07

17 Jul '07

We have an R200 in a 42U NetApp rack with 4ea of the 0U, 220v, 16a PDUs. In a few months we plan to relocate it to another facility, but they do not have 220v power available, only 110v. Any ideas where we can find 110v PDUs to replace the NetApp 220v ones? Ideally they would be the same physical size as the ones currently in the rack. They have to be 0U as the rack is totally full.

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RE: NFS vs. iSCSI for VMware (was "Re: List still active?")
by Scott Lowe 16 Jul '07

16 Jul '07

5 4

Adding VLANs to a vif
by Wes Hardin 13 Jul '07

13 Jul '07

I have a FAS3020 with all four onboard gig-e ports trunked as vif0. I am wanting to add a VLAN interface to my current vif for my backup network. Will the following lines in /etc/rc work? (Sorry for the wrapping) vif create multi vif0 -b ip e0a e0c e0b e0d vlan create -g off vif0 4093 ifconfig vif0 `hostname`-vif0 mediatype auto netmask 255.255.248.0 partner vif0 ifconfig vif0-4093 `hostname`-backup netmask 255.255.0.0 partner vif0-4093 I still want vif0 to act as it does now, sending and receiving untagged frames, but the new interface, vif0-4093, sending tagged frames. I tried to simulate this with the ONTAP simulator, but it wasn't supported on my setup and all the documentation I can find doesn't mention the original interface again after creating the VLAN. Thanks, -- /* wes hardin */ UNIX System Admin Dallas Semiconductor/Maxim Integrated Products

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ndmpcopy failure "RESTORE: File creation failed"
by Paul Letta 13 Jul '07

13 Jul '07

Hello, I have a new filer running 7.2.2. I am using ndmpcopy from the command line of the new filer to copy a directory (not a whole volume) from an old filer running 7.1.1.1. Many of the directories I am moving are fine, but at least one (so far) has produced some errors while the ndmpcopy was running: Ndmpcopy: cfs1: Log: RESTORE: File creation failed: ...(258720) The ndmpcopy runs and finishes without error. The ndmpdcopy of one of these directories had 179 of these failures. Ndmpcopy: old: Log: DUMP: 124480831 KB Ndmpcopy: new: Log: RESTORE: RESTORE IS DONE Ndmpcopy: new:newcfs1: Notify: restore successful Ndmpcopy: old: Log: DUMP: DUMP IS DONE Ndmpcopy: old: Log: DUMP: Deleting "/vol/vol1/../snapshot_for_backup.234" snapshot. I then turned on ndmpd debug to 70 and ran it again. This time each of the failed files had a similar segment of errors like this: Jul 11 15:56:09 EDT [ndmpd:10]: Message NDMP_LOG_MESSAGE sent Jul 11 15:56:09 EDT [ndmpd:10]: Message Header: Jul 11 15:56:09 EDT [ndmpd:10]: Sequence 22 Jul 11 15:56:09 EDT [ndmpd:10]: Timestamp 1184183769 Jul 11 15:56:09 EDT [ndmpd:10]: Msgtype 0 Jul 11 15:56:09 EDT [ndmpd:10]: Method 1539 Jul 11 15:56:09 EDT [ndmpd:10]: ReplySequence 0 Jul 11 15:56:09 EDT [ndmpd:10]: Error NDMP_NO_ERR Jul 11 15:56:09 EDT [ndmpd:10]: Log type: 0 Jul 11 15:56:09 EDT [ndmpd:10]: Message id: 0 Jul 11 15:56:09 EDT [ndmpd:10]: Log message: RESTORE: File creation failed: ...(258729) Ndmpcopy: new: Log: RESTORE: File creation failed: ...(258729) The new filer is empty and the destination volume is a big flexvol. The source directory (qtree) is in a traditional volume. I have opened a case, but nothing back yet. Anyone ever see this before ? Thanks, Paul

2 1

RE: ndmpcopy failure "RESTORE: File creation failed"
by Kenneth Heal 12 Jul '07

12 Jul '07

HiI vaguely recall seeing something similar and in that case there was an inconsistent inode in the source directory. It is therefore probably worth doing a wafliron on the source directory:filer>priv set advancedfiler*>vol wafliron start volnamefiler*>priv setfiler>cheersKenneth HealStorage ConsultantSenet Eindhoven bv> Date: Thu, 12 Jul 2007 16:34:13 -0400> From: letta(a)jlab.org> To: toasters(a)mathworks.com> Subject: ndmpcopy failure "RESTORE: File creation failed"> > Hello,> I have a new filer running 7.2.2. I am using ndmpcopy from the > command line of the new filer to copy a directory (not a whole volume) > from an old filer running 7.1.1.1. Many of the directories I am moving > are fine, but at least one (so far) has produced some errors while the > ndmpcopy was running:> > > Ndmpcopy: cfs1: Log: RESTORE: File creation failed: ...(258720)> > The ndmpcopy runs and finishes without error. The ndmpdcopy of one of > these directories had 179 of these failures.> > Ndmpcopy: old: Log: DUMP: 124480831 KB> Ndmpcopy: new: Log: RESTORE: RESTORE IS DONE> Ndmpcopy: new:newcfs1: Notify: restore successful> Ndmpcopy: old: Log: DUMP: DUMP IS DONE> Ndmpcopy: old: Log: DUMP: Deleting > "/vol/vol1/../snapshot_for_backup.234" snapshot.> > > I then turned on ndmpd debug to 70 and ran it again. This time each of > the failed files had a similar segment of errors like this:> > Jul 11 15:56:09 EDT [ndmpd:10]: Message NDMP_LOG_MESSAGE sent> Jul 11 15:56:09 EDT [ndmpd:10]: Message Header:> Jul 11 15:56:09 EDT [ndmpd:10]: Sequence 22> Jul 11 15:56:09 EDT [ndmpd:10]: Timestamp 1184183769> Jul 11 15:56:09 EDT [ndmpd:10]: Msgtype 0> Jul 11 15:56:09 EDT [ndmpd:10]: Method 1539> Jul 11 15:56:09 EDT [ndmpd:10]: ReplySequence 0> Jul 11 15:56:09 EDT [ndmpd:10]: Error NDMP_NO_ERR> Jul 11 15:56:09 EDT [ndmpd:10]: Log type: 0> Jul 11 15:56:09 EDT [ndmpd:10]: Message id: 0> Jul 11 15:56:09 EDT [ndmpd:10]: Log message: RESTORE: File creation > failed: ...(258729)> Ndmpcopy: new: Log: RESTORE: File creation failed: ...(258729)> > The new filer is empty and the destination volume is a big flexvol. The > source directory (qtree) is in a traditional volume.> > > I have opened a case, but nothing back yet. Anyone ever see this before ?> > Thanks,> Paul _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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RE: List still active?
by Glenn Walker 12 Jul '07

12 Jul '07

We're looking at going the ESX route as well. The NFS route is thin-provisioned, as you said, which is attractive. Keeping the snapshot capabilities for LUNs by adding space reservations is safer, but costly. Quite frankly, thin provisioning the space res for LUNs is attractive if your organization is pro-active, but that isn't the case where I'm at: too dangerous and asking for danger. That said, you won't get quite the same latency\throughput with NFS as with iSCSI or especially FCP. Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Glenn Dekhayser Sent: Wednesday, July 11, 2007 9:55 AM 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 > > > ###################################################################### > > > ############### > > > > >

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