toasters January 2007

toasters@lists.teaparty.net

62 participants
76 discussions

Netapp and VMware... It's all so confusing!
by Timothy Hollingworth 01 Apr '10

01 Apr '10

So, say for example, I want to virtualize an Exchange server. Lets also say that I want to manage it via Snapdrive and SME. Lets also say, just for the heck of it, that I want both the new front-engined Acura NSX as well as the Porsche RC3. The cars aside, I would have to run iSCSI from within the VM, install and use Snapdrive from within the VM to provision LUNs, install Exchange and then use SME? It seems kind of silly to use iSCSI from within a VM if the ESX box were fiber attached to the Filer, just to be able to use Snapdrive and SME, no? I would love to be able to use the features of SD and SME within a completely virtual environment and am wondering what some real world implementations other VMware/Netapp customers are running. Do you run storage for the databases and logs in VMDK's and manage snapshots and backups from a VMware virtual machine perspective or do you manage them as iSCSI LUNs and use SD and SME? Or am I completely blind and missing something? Timothy L. Hollingworth Sr. Network Engineer, ePlus Technology Inc. 678.462.6698 (cell) AIM: HollingworthTim YIM: t_holling

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RE: Vista and Netapp??
by Callaway, Michael 02 Feb '07

02 Feb '07

Can other non-visa clients access this CIFS share in the way you want your vista box to access it? Just because your user is in AD, doesn't give it permissions on the share. You need to make sure that user has access on the filer through group and user permissions as well as the shares have to be given to that user or a group that user is in. I would first make the exact same setup on an XP or 2000 box (whichever you have) and determine if it's a user setup problem or something that can be directly attributed to Vista. -- *--------------------------------------- Michael Callaway (Server Administrator) North Texas Tollway Authority http://www.ntta.org <http://www.ntta.org/> 214-461-2033 o 214-325-5523 m 972-930-2633 f ---------------------------------------- ________________________________ From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Brent Ellis Sent: Thursday, January 11, 2007 9:09 AM To: toasters(a)mathworks.com Subject: Vista and Netapp?? I am just starting to test Vista against our netapp FAS 3020c filers. We use these machines with the CIFS license for basic file sharing. The shares have Active Directory permissions applied to them and the servers have been added to AD. In Vista, I cannot connect to the servers using an AD account. Only the accounts created on the filer itself will allow me to connect from Vista. Has anyone run into this? Any solutions? Brent Ellis Computing Services Group Boston University 617-358-2486 interi(a)bu.edu cashelp(a)bu.edu

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RE: NFS speed
by Miller, Michael CTR USTRANSCOM J2 31 Jan '07

31 Jan '07

I thought of that also. A normal file copy shows the same results. Mike Miller General Dynamics Information Technology Michael.Miller.ctr(a)ustranscom.mil Michael.Miller(a)gdit.com Phone: 618-229-1185 -----Original Message----- From: Parisi, Justin [mailto:Justin.Parisi@netapp.com] Sent: Wednesday, January 31, 2007 1:37 PM To: Miller, Michael CTR USTRANSCOM J2 Subject: RE: NFS speed I'm relatively new at this, but here's the first thing I thought of? - Could it be the Legato software itself as a bottleneck? Also, someone else mentioned the filer option... that would also be a good place to start. _____ From: Miller, Michael CTR USTRANSCOM J2 [mailto:michael.miller.ctr@ustranscom.mil] Sent: Wednesday, January 31, 2007 1:29 PM To: toasters(a)mathworks.com Subject: NFS speed I'm trying to increase the NFS ops of an R200 that sits at the end of a WAN link and I can't find the magic bullet if there is one. Some background for you: The destination end is an 18MB section of an OC3 ATM pipe with little extra traffic. The source end is a 100MB pipe into an ATM cloud. The filer is a snapmirror destination and using sysstat I see Net in readings of 1300+ kB/s while a snap operation is in progress. Snapmirror reports show one transfer of 4.20GB taking 2:28 hours and another of 1.26GB taking 53 minutes. My problem comes into play with NFS operations. I use the filer as a disk backup destination using Legato Networker and only get less than 80KB/s transfers. This shows up in sysstat as 6-8 NFS ops/s with less than 75 kB/s showing for input traffic. I've tried various changes to the mount options and played with settings on the Solaris host and the filer. Had no joy anywhere. Anyone have any thoughts on how to speed this up? I have thought about pulling the backup target in-house and using the Legato clone mechanism to get the data back to the filer but I doubt that would help much. Thanks Mike Miller General Dynamics Information Technology Michael.Miller.ctr(a)ustranscom.mil Michael.Miller(a)gdit.com Phone: 618-229-1185

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RE: NFS speed
by Miller, Michael CTR USTRANSCOM J2 31 Jan '07

31 Jan '07

Steve I sure hope that is not the problem. I had gone down that line of thought but I keep coming back to the snapmirror transfer rates. I don't know the details of a snapmirror transfer but I would expect to see issues there also if latency was the problem. Mike Miller General Dynamics Information Technology Michael.Miller.ctr(a)ustranscom.mil Michael.Miller(a)gdit.com Phone: 618-229-1185 -----Original Message----- From: Stephen C. Losen [mailto:scl@sasha.acc.Virginia.EDU] Sent: Wednesday, January 31, 2007 1:43 PM To: Miller, Michael CTR USTRANSCOM J2 Subject: Re: NFS speed Perhaps your problem is network latency rather than bandwidth. Perhaps you can send a large burst of data to the netapp (high bandwidth) but it takes a while for that burst to travel all the way across the network (high latency). In this situation a process on the NFS client sends a request and has to wait for the request to arrive at the netapp and then wait for the response to before sending the next request. During these wait periods, more data could be sent or received, so the network just sits idle for most of the time. If the load on the netapp is really low (which is probably the case) then I suggest testing this theory by firing up a bunch of parallel processes on the NFS client that each read and/or write a large file on the netapp. If the throughput goes up, then that probably indicates latency. Steve Losen scl(a)virginia.edu phone: 434-924-0640 University of Virginia ITC Unix Support

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NFS speed
by Miller, Michael CTR USTRANSCOM J2 31 Jan '07

31 Jan '07

I'm trying to increase the NFS ops of an R200 that sits at the end of a WAN link and I can't find the magic bullet if there is one. Some background for you: The destination end is an 18MB section of an OC3 ATM pipe with little extra traffic. The source end is a 100MB pipe into an ATM cloud. The filer is a snapmirror destination and using sysstat I see Net in readings of 1300+ kB/s while a snap operation is in progress. Snapmirror reports show one transfer of 4.20GB taking 2:28 hours and another of 1.26GB taking 53 minutes. My problem comes into play with NFS operations. I use the filer as a disk backup destination using Legato Networker and only get less than 80KB/s transfers. This shows up in sysstat as 6-8 NFS ops/s with less than 75 kB/s showing for input traffic. I've tried various changes to the mount options and played with settings on the Solaris host and the filer. Had no joy anywhere. Anyone have any thoughts on how to speed this up? I have thought about pulling the backup target in-house and using the Legato clone mechanism to get the data back to the filer but I doubt that would help much. Thanks Mike Miller General Dynamics Information Technology Michael.Miller.ctr(a)ustranscom.mil Michael.Miller(a)gdit.com Phone: 618-229-1185

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Sunscribe
by Connors, Joel Anne 31 Jan '07

31 Jan '07

Sunscribe Joel Anne Connors connors(a)netapp.com <mailto:connors@netapp.com> Technical Support Engineer Network Appliance Inc. Work Hours M-F 8AM- 5PM EST Phone (919) 476-8615 Everyone at Network Appliance is committed to the highest level of customer satisfaction. If at any time you have any concerns or comments about our support please contact my manager Angie Moore at (919) 476-5549 or Angela.Moore(a)netapp.com

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Re: wafliron output -- is wafl OK?
by Reinoud Reynders 31 Jan '07

31 Jan '07

On the console, he will give information when there are unrecoverable blocks. I'm not sure that he gives info when it's finished. But you can monitor the process (wafl scan status). Depending on the size of the volume, it can take a long time. You can speed up. This (give the process more priority, if you want). Best regards, Reinoud Reynders University Hospitals Leuven Belgium -----Original Message----- From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> To: toasters(a)mathworks.com <toasters(a)mathworks.com> Sent: Tue Jan 16 17:36:48 2007 Subject: wafliron output -- is wafl OK? Hi toasters... currently i am running a wafliron. My question now is, do i get any kind of output after wafliron has finished?? Do i see if there where any wrong blocks and if Ontap was able to solve the problem or not?? Or is there any extra command to assure that there is no problem in wafl left?? Regards and thanks for your help Jochen

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netapp certified expert
by Leeds, Daniel 30 Jan '07

30 Jan '07

has anyone completed the netapp certified expert exams? coming from a day to day administration level on filers for many years im interested in what sort of topics they cover and if they are geared towards the real world or more of a training course regurgitation. in so many other vendor/system certs the exams focus on trivial and unrealistic aspects of adminstration--for example, sun certs focusing on adding printers and users via the gui---puhlease. mostly im just trying to figure out if someone could reasonably take the tests on experience alone or do i need to shell out 15K plus on all the little courses to get the courseware and then cram that. thanks -- Daniel Leeds Senior Systems Administrator Edmunds.com

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RE: Aggregate expansion
by Suresh Rajagopalan 30 Jan '07

30 Jan '07

Thanks for all the responses. This is to meet an IOPS objective. I've run reallocate scans on the LUN's before, but it is not clear if that has done anything. Does a reallocate scan force the data to spread out on more spindles? Suresh -----Original Message----- From: Blake Golliher [mailto:thelastman@gmail.com] Sent: Monday, January 22, 2007 12:06 PM To: Suresh Rajagopalan Cc: Borders, Rich; toasters(a)mathworks.com Subject: Re: Aggregate expansion That sounds fair. The thing you'll need to keep in mind is that all your data written to the 14 disks that you first created. After you add on the other set of disks, the data you write will likely be put there, since that's where the most free contiguous space is. So if you are adding spindles for the space you need, and not to meet an IOP objective, you should be ok. If you are adding more disks, in an attempt to give more disk iop resources to the already existing data set, then it's a bit harder. If you have enough space, you can use reallocate to re spread out the data across the spindles. Hope that helps, -Blake On 1/22/07, Suresh Rajagopalan <SRajagopalan(a)williamoneil.com> wrote: > I mean with existing data on the aggregate. > > To clarify, say I first create an aggregate with 14 disks (and default > raid size). Then this aggregate is populated with data. After a > period of time the aggregate is expanded by adding disks, say to 56 > disks. > > The question is, is there a difference (in performance, efficiency) > between the aggregate as described above and an aggregate that was > originally created from all 56 disks? > > Suresh > > > -----Original Message----- > From: Borders, Rich [mailto:Rich.Borders@netapp.com] > Sent: Monday, January 22, 2007 11:25 AM > To: Suresh Rajagopalan; toasters(a)mathworks.com > Subject: RE: Aggregate expansion > > Yes... You can make hot disks happen. Do you mean without adding any > data? > > > > Richard D Borders > CPR Escalations Engineer > RTP, North Carolina USA - Network Appliance, Inc. > Email: rborders(a)netapp.com > Phone:(919) 476-5236 > Cell: (919) 606-5099 > Fax: (919) 476-5608 > > > -----Original Message----- > > From: Suresh Rajagopalan [mailto:SRajagopalan@williamoneil.com] > > Sent: Monday, January 22, 2007 12:46 PM > > To: toasters(a)mathworks.com > > Subject: Aggregate expansion > > > > Is there any difference between creating an aggregate on a certain > > number of disks (say n) , and then later expanding the aggregate to N > > disks, as opposed to creating the initial aggregate on N disks? > > > > > > > > Suresh > > > > > > > >

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RE: wafliron output -- is wafl OK?
by Glenn Walker 27 Jan '07

27 Jan '07

I assume you mean aggregate vs volume snapshots? WAFL creates snapshots at the volume level, not the qtree level. Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Christian Mikovits Sent: Saturday, January 27, 2007 7:34 AM To: toasters(a)mathworks.com Subject: Re: wafliron output -- is wafl OK? Hi. I guess you're running a 7.2 version of ONTAP. I've got the same problems using snapshots with 7.2. You should upgrade to 7.2.1p1 as soon as possible; and for safety avoid volume snapshots on the filer --> use qtree snapshots instead at the moment 7.2 is a piece of crab, just my 2cents. cool features but really buggy. useless ha for lots of money :( On Wed, 17 Jan 2007 09:56:29 +0100 "Willeke, Jochen" <Jochen.Willeke(a)wincor-nixdorf.com> wrote: > Hi, > > first thanks a lot for your answers. We had an issue with the an > inconsistency in a snapshot. First we set the regarding volume offline > and used a snapmirror dest to recover the data. Now we copied the data > onto a testfiler and currently i am trying to "repair" wafl. Wafliron > runs and constantly finds problems (mostly with atime) and corects > them. So of course i can have a look at the messagelog lateron, but i > was looking for an command or an output of wafliron which summarizes > the results. > > Like this > > > [14:22:10] wafliron finished : analyzed 100 blocks, 20 erros found, > > 18 > errors corrected, 2 errors left > > But it seems that i must dig in the messagelog. Thanks anyway. > > Regards > > Jochen > > ________________________________ > > From: Reinoud Reynders [mailto:reinoud.reynders@uz.kuleuven.ac.be] > Sent: Tuesday, January 16, 2007 7:43 PM > To: Willeke, Jochen; toasters(a)mathworks.com > Subject: Re: wafliron output -- is wafl OK? > > > > On the console, he will give information when there are unrecoverable > blocks. > I'm not sure that he gives info when it's finished. But you can > monitor the process (wafl scan status). Depending on the size of the > volume, it can take a long time. You can speed up. This (give the > process more priority, if you want). > > Best regards, > > Reinoud Reynders > University Hospitals Leuven > Belgium > > -----Original Message----- > From: owner-toasters(a)mathworks.com <owner-toasters(a)mathworks.com> > To: toasters(a)mathworks.com <toasters(a)mathworks.com> > Sent: Tue Jan 16 17:36:48 2007 > Subject: wafliron output -- is wafl OK? > > Hi toasters... > > currently i am running a wafliron. My question now is, do i get any > kind of output after wafliron has finished?? > Do i see if there where any wrong blocks and if Ontap was able to > solve the problem or not?? > > Or is there any extra command to assure that there is no problem in > wafl left?? > > Regards and thanks for your help > > Jochen > >

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toasters January 2007