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Re: cifs operations
by Page, Jeremy 15 Jan '12

15 Jan '12

If your clients are set to index shares this can happen. ----- Reply message ----- From: "Webster, Stetson" <Stetson.Webster(a)netapp.com> To: "Crawford, Mark (CBC)" <Mark.Crawford(a)CapBlueCross.COM> Cc: "toasters(a)teaparty.net" <toasters(a)teaparty.net> Subject: cifs operations Date: Sun, Jan 15, 2012 9:10 am In short, attribute lookups and directory listings. In long, it's hard to tell the root cause without seeing the big picture within the auspices of a support case. For example, what you describe could simply be a symptom of a broader issue or even a mere client configuration change. It's hard to tell, but hopefully you have enough to get started. Sent from my iThumbs. Please pardon my thumbmanship. On Jan 15, 2012, at 8:34 AM, "Crawford, Mark (CBC)" <Mark.Crawford(a)CapBlueCross.COM<mailto:Mark.Crawford@CapBlueCross.COM>> wrote: Hello toasters: Can anyone explain what CIFS operations that are neither read nor write operations? In addition, can anyone think of what process(es) could be causing these? ops/s reads(n, KB/s) writes(n, KB/s) suspect/s 860 | 0 0 | 0 0 | 0 | We have 1500+ windows 7 workstations connecting to their homeshares on this head. Lately we have been seeing CIFS latency where the user workstations are hanging within their windows explorer window. When this occurs, a cifs top shows high “ops/s” with no associated reads or writes. We are running DATA ONTap v7.3.5.1P1. Any insights would be greatly appreciated. Confidentiality Notice: This e-mail is intended only for the personal and confidential use of the individual to whom it is addressed and may contain information that is privileged, confidential and protected by law. If you are not the intended recipient, you are hereby notified that any use or disclosure of this information is strictly prohibited. If you have received this message in error, please notify the sender immediately by reply e-mail and delete the original message. Your compliance is appreciated. _______________________________________________ Toasters mailing list Toasters(a)teaparty.net<mailto:Toasters@teaparty.net> http://www.teaparty.net/mailman/listinfo/toasters Please be advised that this email may contain confidential information. If you are not the intended recipient, please notify us by email by replying to the sender and delete this message. The sender disclaims that the content of this email constitutes an offer to enter into, or the acceptance of, any agreement; provided that the foregoing does not invalidate the binding effect of any digital or other electronic reproduction of a manual signature that is included in any attachment.

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DS14MK4 as DAS
by Don Elmore 08 Jan '12

08 Jan '12

Apologies if this has been asked before. We have a DS14MK4 shelf with 144G FC disks and 2 ESH4 modules that's no longer in production. I've heard of people using these shelves as direct-attached storage (no filer head, just directly cabled to a host), but I haven't been able to pull up any details after searching online. I figure if anybody has tried something this silly, they're probably on this mailing list :) Has anybody been able to get this to work? Any tips/tricks? Thanks! Don Elmore IT Manager Volition, Inc. ________________________________ This message, including any attachments, may contain privileged and/or confidential information. Any distribution or use of this email by anyone other than the intended recipient(s) is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and delete all copies. Thank you.

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SNMP poll timeouts
by Jeff Cleverley 03 Jan '12

03 Jan '12

Greetings, I upgraded a 6080 and 6040 cluster from 7.3.3P5 to 7.3.5.1P4 this past Sunday. Since then I have been getting periodic timeout alerts followed by a resolved message on the 6080 cluster. I don't have any errors on the 6040 cluster. I didn't have any problem with either of these clusters at the old level. I'm sure I can have our NMS manager adjust timeouts or retries, but this is basically masking the issue. The filer doesn't seem to be particularly busy and the network interfaces are not showing any obvious issues. Does anyone have any idea of what may have changed in the release and why it is only affecting the 6080 cluster? Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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64 bit root volume conversion.
by Jeff Cleverley 31 Dec '11

31 Dec '11

Greetings, We have a filer (3140) running 8.0.1 and the group wanted to convert it to a 64 bit root aggregate and vol0. I let them practice on my 8.1 test box and everything went as planned. When they did it on their 8.0.1 box, all went as plan except for the assigning the root volume. They had moved the original vol0 out of the way and renamed the new 64 bit volume to vol0. When they ran the "vol options vol0 root" command it gave the following output: >> Necessary system files are not present on the volume 'vol0'. It is recommended that you copy system files from the current root volume to the new root volume using the steps outlined in System Administration Guide, chapter 'Understanding Root Volumes', section 'Changing Root Volume'. If you do not, then after reboot, the appliance will enter setup and service will be disrupted until all the setup steps (including a reinstall of system software) have been completed. Continue with set root operation (y/n)? >> He answered no. We did file listings and verified all the files are in both places. There were no obvious ndmpcopy errors. The size of space used differs a little bit, but I assume the 32 vs 64 bit aggregate layouts would cause some fluff. I even had him destroy the 64 bit vol0 volume and run everything again. Same results. Does anyone know what this is complaining about? Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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ndmp restores
by Ian Dotson 21 Dec '11

21 Dec '11

We've just started using our first Netapp here. One surprise involves backups (we're using NetVault's NDMP plugin). I'll let our local backup guy explain: "We're setting up our new netapp, have the ndmp plugin in place and can back up ok. But I don't see how to set up backups of netapp filer volumes so that I can do restores in the same way we can do restores from windows file servers. Specifically, the ndmp restore window only shows the files backed up in that specific dump, so if I want to restore all files that existed in a directory up to that date, it appears I have to separately do a restore of the level 0 dump, then all pertinent level 1 dumps, then all pertinent level 2 dumps, etc. With windows file restores, I could restore the whole directory with one job. How do I set up the netapp ndmp to work like that? " The NetVault folks reply that "the NDMP protocol doesn't allow for that. Each restore builds on the previous restore, so you have to do Level 0, Level 1, etc.. It would be the same with any filer that utilizes the NDMP protocol" -- which doesn't seem right at all. So, is this indeed the same for those using NetBackup, etc.? Are you forced to restore each dump level individually? Thanks, Ian Dotson

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Flex_scale licensing question.
by Jeff Cleverley 20 Dec '11

20 Dec '11

Greetings, I'm confused about the flex_scale licensing. We have installed PAMII modules in 2 of our clusters running 7.3.x. We have a license for pamii, but not for flex_scale. To manage the extended cache, it has us set flexscale.xxx options. Since we don't have flex_scale licensed, are these options doing any good at all? I didn't know if flex_scale was tied to the old flashcache modules and pamii now incorporates the same thing for the new PAMII cards. Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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Disk space increasing after snapshots are deleted.
by Jeff Cleverley 18 Dec '11

18 Dec '11

Greetings, We have a 8.0.1 filer that runs as a NearStore for SV backups. The group using this normally kept 120 nightly backups. The aggregates were getting full so they decided to delete all snapshots older than 90 days. This was done with a script using snap delete <vol> <snapshot> with a list of snapshots fed into the command. Some of the lists were not in reverse order so it deleted nightly.91 before nightly.119. I know deleting them in this type of order will work anyway, but it causes the system to do more processing. The problem is the disk space is continuing to grow on all volumes in the aggregates. An aggr show_space of the aggregates shows everything increasing in used space. The volumes have no space reservation. I'm trying to figure out how this mass deletion of snapshots (several hundred) is causing an increase in space usage. Any ideas? Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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Installing & Testing Flash Cache cards
by Fletcher Cocquyt 15 Dec '11

15 Dec '11

We are taking delivery of a couple flash cache cards (512Gb demo units) soon. I plan to install them in our standby 3270 cluster then present several cache enabled volumes for various benchmark us cases (Oracle, VMware, Web etc) Qs: 1 - how easy/hard is the physical installation? Any gotchas to avoid? 2 - can I enable / disable caching on the volumes to help define the benefit flash cache is providing? 3 - how do I best monitor the flash cache metrics (I use cacti to graph "Cache Age" currently) thanks -- Fletcher Cocquyt Principal Engineer Information Resources and Technology (IRT) Stanford University School of Medicine Email: fcocquyt(a)stanford.edu Phone: (650) 724-7485

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flexcache and cold caches
by Peter D. Gray 15 Dec '11

15 Dec '11

Hi toasters, we have just recently "upgraded" our netapp infrastructure and moved from lots of small FC drives, to a much smaller number of SATA drives. We knew this would cause a performance decrease and compensated by installing 512GB flexcache cards. Its a HA 3170A. So far it all kind of works. However, its clear that the caches take a long time to heat up, several hours in fact. During that time, performance is "average" to say the least. So, I guess I have 2 questions for people who are doing similar things: 1) are there any tips on ways to improve the cold start performance (I cannot think of any). 2) if I have a HA failover, I imagine my performance will be even worse since the second heads cache will be completely cold for the data from the failed head and to make things worse, the second head will have to eject data from the cache for its own local volumes. Anybody with experience of this? 3) Any bright ideas other than more spindles? It would be nice if the caches were nvram, to avoid the cold start problem. I really netapp should use SSD's for the cache for exactly this reason. Or am I missing something? Regards, pdg

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Re: 64 bit root volume conversion.
by Jeff Cleverley 15 Dec '11

15 Dec '11

>From what I can see from the audit logs they ran "ndmpcopy /vol/old_vol0 /vol/vol0" after they had renamed the original vol0 to old_vol0. I checked the audit logs on the test system and they did the ndmpcopy from vol0 to new_vol0, then did the rename. Would running the ndmpcopy when the original vol0 had been renamed first affect any of the files or the copy somehow? I wouldn't expect so, but I'll have him try it again in the morning. Jeff > > On Dec 14, 2011, at 2:10 PM, Jeff Cleverley <jeff.cleverley(a)avagotech.com> wrote: > >> Greetings, >> >> We have a filer (3140) running 8.0.1 and the group wanted to convert >> it to a 64 bit root aggregate and vol0. I let them practice on my 8.1 >> test box and everything went as planned. When they did it on their >> 8.0.1 box, all went as plan except for the assigning the root volume. >> >> They had moved the original vol0 out of the way and renamed the new 64 >> bit volume to vol0. When they ran the "vol options vol0 root" command >> it gave the following output: >> >>>> >> Necessary system files are not present on the volume 'vol0'. It is >> recommended that you copy system files from the current root volume to >> the new root volume using the steps outlined in System Administration >> Guide, chapter 'Understanding Root Volumes', section 'Changing Root >> Volume'. If you do not, then after reboot, the appliance will enter >> setup and service will be disrupted until all the setup steps >> (including a reinstall of system software) have been completed. >> Continue with set root operation (y/n)? >>>> >> >> He answered no. We did file listings and verified all the files are >> in both places. There were no obvious ndmpcopy errors. The size of >> space used differs a little bit, but I assume the 32 vs 64 bit >> aggregate layouts would cause some fluff. I even had him destroy the >> 64 bit vol0 volume and run everything again. Same results. >> >> Does anyone know what this is complaining about? >> >> Thanks, >> >> Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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