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13515 discussions

Monitoring NFS memory leakage with mem_stats
by Jordan Slingerland 23 Jan '14

23 Jan '14

Can anyone tell me how to interoperate the results of this output. The BURT mentions you can monitor a memory leak with mem_stats but doesn't explain how. --Jordan Ø 'priv set diag ; mem_stats'|grep updatecache Warning: These diagnostic commands are for use by IBM personnel only. 24342 10710480 maytag.ko::nfsrv_do_updatecache+988 http://support.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=522489 http://reyansh-netapp.blogspot.com/2013/07/memory-leakage-on-netapp.html For the seventh consecutive year, Independent Health was named one of the best companies to work for in New York State. Go to www.independenthealth.com to view careers and available positions. We are an Equal Opportunity Employer. CONFIDENTIALITY NOTICE: This e-mail and its attachments (collectively referred to as "e-mail") may contain confidential information that is privileged and protected from disclosure by Federal and State confidentiality laws, rules or regulations. This e-mail is intended for the designated addressee only. If you are not the designated addressee, you are notified that any disclosure, copying or distribution of this e-mail may be unlawful and may subject you to legal consequences. If you have received this e-mail in error, please contact me immediately by telephone at (716) 631 - 3001 and delete the e-mail from your computer immediately. Thank you for your attention.

1 0

flow control and 10g interfaces - ifgrps and vlans
by Jordan Slingerland 22 Jan '14

22 Jan '14

Can flow control be disabled on a vlan interface? I tried in a simulator and It spits back "SIOCSFLOWCONTROL - Operation not supported by device" In the same simulator I can enable or disable it directly on the interface. Example RC: hostname toasterA ifgrp create lacp nfs_ifgrp -b mac e2b e1b vlan create -g off nfs_ifgrp 100 ifconfig e0M 192.168.1.100 flowcontrol none netmask 255.255.255.0 partner e0M up ifconfig nfs_ifgrp-100 192.168.0.100 flowcontrol none netmask 255.255.255.0 mtusize 1500 partner nfs_ifgrp-100 trusted up nfo route add default 192.168.0.1 --Jordan For the seventh consecutive year, Independent Health was named one of the best companies to work for in New York State. Go to www.independenthealth.com to view careers and available positions. We are an Equal Opportunity Employer. CONFIDENTIALITY NOTICE: This e-mail and its attachments (collectively referred to as "e-mail") may contain confidential information that is privileged and protected from disclosure by Federal and State confidentiality laws, rules or regulations. This e-mail is intended for the designated addressee only. If you are not the designated addressee, you are notified that any disclosure, copying or distribution of this e-mail may be unlawful and may subject you to legal consequences. If you have received this e-mail in error, please contact me immediately by telephone at (716) 631 - 3001 and delete the e-mail from your computer immediately. Thank you for your attention.

2 3

C-mode & ARP cache...
by Mark Flint 21 Jan '14

21 Jan '14

Does anyone know if a C-mode filer does a gratuitous ARP when it fails a port over? Got a VM issue I'm trying to resolve. Mark Flint mf1(a)sanger.ac.uk -- The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.

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2240 hot add tray
by Fletcher Cocquyt 21 Jan '14

21 Jan '14

What's the best practice procedure (doc?) for hot adding a new tray of SATA to my 2240 cluster? What the things that can go wrong? thanks!

5 9

reallocate effect on snapmirror and snapvault
by rrhodes＠firstenergycorp.com 20 Jan '14

20 Jan '14

Hi, I'm thinking of running a "reallocate start -p" on a couple volumes that are showing high latency disk accesses for luns. The volume is a source for both snapmirror and snapvault operations. I was reading up on this command and I can't find any real info on the effect of running this on the snapmirror and snapvault operations. Question: If I run a "reallocate start -p" on a volume, will snapmirror/snapvault see this and send all reallocated blocks? Also, can snapmirror/snapvault operations be running during the reallocate? Thanks Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.

2 5

Consistency Point Type M
by Alexander Griesser 18 Jan '14

18 Jan '14

Good morning, does anyone know what consistency point type M is and what's causing it? I was getting them yesterday on one of my 3240s, 8.1.3P1, it has a Flash Cache Card installed if that's relevant for this problem. I was alerted by OnCommand Core about high CPU usage on this filer. *> sysstat -x 1 CPU NFS CIFS HTTP Total Net kB/s Disk kB/s Tape kB/s Cache Cache CP CP Disk OTHER FCP iSCSI FCP kB/s iSCSI kB/s in out read write read write age hit time ty util in out in out 94% 0 0 0 1122 282622 5880 24406 398932 0 0 5s 99% 99% Mf 45% 0 0 1122 0 0 271544 0 93% 0 0 0 1225 286280 5973 21928 366135 0 0 5s 99% 96% Ms 44% 0 0 1225 0 0 275276 0 87% 0 0 0 1422 316299 6638 24652 243511 0 0 5s 99% 85% Mn 31% 5 0 1417 0 0 303576 0 93% 0 0 0 1018 228505 4797 27948 376695 0 0 5s 99% 87% Mf 41% 0 0 1018 0 0 219500 0 94% 0 0 0 1271 280539 5900 24036 267711 0 0 5s 99% 76% Mn 27% 0 0 1271 0 0 269419 0 91% 0 0 0 1177 271879 5717 28680 312704 0 0 5s 99% 77% M 38% 0 0 1177 0 0 261226 0 94% 0 0 0 1186 264471 5563 29846 352275 0 0 5s 99% 82% Ms 38% 0 0 1186 0 0 254111 0 92% 0 0 0 1369 297761 6271 22447 233291 0 0 5s 99% 79% Mn 30% 5 0 1364 0 0 285898 0 92% 0 0 0 1123 255828 5368 23300 367620 0 0 5s 99% 83% Mf 40% 0 0 1123 0 0 246068 0 91% 0 0 0 1201 272685 5722 26273 292545 0 0 5s 99% 77% Mn 37% 0 0 1201 0 0 261885 0 92% 0 0 0 1355 293194 6145 27210 273654 0 0 5s 99% 76% Mn 33% 83 0 1272 0 0 282260 0 94% 0 0 0 1011 234096 4915 24933 352155 0 0 5s 99% 81% Mn 37% 0 0 1011 0 0 224053 0 90% 0 0 0 1211 275554 5789 36624 285552 0 0 5s 98% 80% Mn 33% 5 0 1206 0 0 264635 0 89% 0 0 0 1325 294916 6197 21227 309395 0 0 5s 99% 78% M 30% 0 0 1325 0 0 283356 0 90% 0 0 0 1134 258937 5429 26731 379776 0 0 5s 98% 84% Mf 42% 0 0 1134 0 0 248736 0 91% 0 0 0 1271 283024 5960 29953 241203 0 0 5s 99% 65% Mn 28% 0 0 1271 0 0 272128 0 90% 0 0 0 1357 287545 6030 29769 329507 0 0 5s 99% 84% Mf 31% 0 0 1357 0 0 275694 0 92% 0 0 0 1265 271400 5695 18026 349410 0 0 9s 99% 84% Ms 39% 6 0 1259 0 0 260907 0 90% 0 0 0 1228 285091 5995 27944 256361 0 0 9s 99% 72% Mn 30% 0 0 1228 0 0 273977 0 *> sysstat -M 1 ANY1+ ANY2+ ANY3+ ANY4+ AVG CPU0 CPU1 CPU2 CPU3 Network Protocol Cluster Storage Raid Target Kahuna WAFL_Ex(Kahu) WAFL_XClean SM_Exempt Cifs Exempt Intr Host Ops/s CP 97% 86% 65% 39% 74% 73% 76% 75% 71% 31% 0% 0% 18% 25% 18% 17% 121%( 68%) 12% 0% 0% 41% 5% 7% 8717 50% 94% 79% 54% 25% 66% 68% 68% 69% 59% 38% 0% 0% 16% 20% 20% 12% 104%( 64%) 2% 0% 0% 37% 5% 10% 8336 67% 98% 89% 72% 44% 78% 80% 81% 80% 70% 31% 0% 0% 17% 30% 17% 12% 127%( 73%) 15% 0% 0% 51% 5% 6% 8099 67% 96% 83% 65% 41% 75% 77% 77% 79% 67% 30% 0% 0% 17% 28% 16% 11% 120%( 71%) 14% 0% 0% 46% 4% 14% 7461 49% 94% 78% 52% 24% 65% 65% 66% 65% 62% 37% 0% 0% 15% 15% 20% 13% 117%( 65%) 0% 0% 0% 27% 6% 8% 9042 33% 96% 84% 67% 42% 74% 76% 78% 78% 64% 31% 0% 0% 17% 29% 16% 9% 112%( 66%) 13% 0% 0% 58% 4% 6% 7642 83% 97% 84% 61% 39% 72% 74% 72% 74% 68% 39% 0% 0% 16% 25% 16% 14% 116%( 70%) 13% 0% 0% 40% 4% 6% 7811 34% 94% 78% 55% 28% 67% 69% 70% 70% 60% 36% 0% 0% 16% 19% 20% 12% 113%( 63%) 2% 0% 0% 33% 5% 12% 9018 51% 96% 85% 66% 40% 73% 76% 77% 78% 62% 34% 0% 0% 17% 28% 17% 7% 123%( 72%) 14% 0% 0% 44% 5% 6% 7926 78% 96% 84% 64% 37% 72% 73% 74% 75% 67% 34% 0% 0% 16% 25% 17% 14% 118%( 68%) 14% 0% 0% 41% 5% 6% 7682 69% 95% 83% 63% 38% 72% 72% 73% 73% 69% 34% 0% 0% 15% 21% 16% 10% 130%( 73%) 8% 0% 0% 41% 5% 6% 7491 87% 96% 84% 66% 40% 74% 75% 77% 77% 68% 38% 0% 0% 15% 24% 18% 13% 126%( 70%) 11% 0% 0% 38% 5% 7% 8309 61% 97% 85% 66% 42% 74% 75% 75% 77% 70% 35% 0% 0% 17% 27% 17% 13% 122%( 71%) 10% 0% 0% 46% 5% 6% 7431 63% 95% 85% 65% 42% 73% 75% 75% 76% 69% 38% 0% 0% 14% 24% 15% 6% 133%( 77%) 13% 0% 0% 40% 4% 5% 6856 96% 95% 86% 70% 47% 76% 79% 77% 80% 69% 36% 0% 0% 15% 29% 14% 9% 127%( 73%) 16% 0% 0% 49% 4% 5% 6005 100% 98% 88% 72% 49% 80% 79% 79% 81% 80% 34% 0% 0% 15% 28% 14% 17% 132%( 75%) 16% 0% 0% 50% 4% 11% 5859 82% 96% 86% 67% 41% 75% 77% 77% 78% 68% 38% 0% 0% 15% 26% 16% 9% 126%( 74%) 14% 0% 0% 43% 5% 6% 6800 65% 98% 89% 73% 49% 79% 79% 80% 80% 77% 35% 0% 0% 16% 28% 16% 15% 132%( 75%) 15% 0% 0% 50% 4% 6% 7030 54% 95% 84% 68% 45% 75% 75% 77% 77% 71% 33% 0% 0% 14% 26% 14% 11% 135%( 75%) 15% 0% 0% 42% 4% 6% 6613 62% The only thing I was able to find so far ist hat it has something to do with low mbufs, but that didn't really help me. At the time I took this sysstat, wafl scan status showed some bitmap rearrangements, but they're always running, sometimes more, sometimes less. No Snapmirror, Snapvault, Deduplication or anything like this running on this filer - it just has aggregate snapshots turned on, but no volume snapshots. Any idea? Thanks, Alexander Griesser System-Administrator ANEXIA Internetdienstleistungs GmbH Telefon: +43-5-0556-320 Telefax: +43-5-0556-500 E-Mail: ag(a)anexia.at<mailto:ag@anexia.at> Web: http://www.anexia.at<http://www.anexia.at/> Anschrift Hauptsitz Klagenfurt: Feldkirchnerstraße 140, 9020 Klagenfurt Geschäftsführer: Alexander Windbichler Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601

7 14

igroup setup for a cluster
by rrhodes＠firstenergycorp.com 15 Jan '14

15 Jan '14

What's the best practice for setting up igroups and lun mapping for a cluster? Last night we moved a cluster that uses luns on Netapp (IBM Nseries) to new servers. The old servers used internal boot disk, while the new use san boot. I had it setup like this (names are different!): Igroup: serverA_boot wwnA1 wwnA2 boot_lun_mapped_in_lunid0 Igroup: serverB_boot wwnB1 wwnB2 boot_lun_mapped_in_lunid0 Igroup: cluster_luns all_the_cluster_luns_mapped_in_lunid0-149 During the cutover, I went to add all 4 wwn's (wwA1,wwnA2,wwnB1,wwnB2) into the cluster igroup. I was swinging the luns from the old server with internal boot to the new san boot servers and got an error. It complained that I couldn't put the new wwn's into the cluster igroup for luns because the boot igroups already had a lun id 0, and the cluster igroup also had a lun id 0. That is, the same wwn can't map to duplicate lun id addresses. To fix, I simply remapped the cluster lun at id 0 to the next highest value, then I could add the wwn's and all was well. Question: Is this the best way to create a san boot cluster? Is there a better way? The next time I create a cluster lun It will be interesting what lun id gets assigned - lun id 0 (and get an error), or the next hightest. I also thought of just mapping the cluster luns to both boot igroups, but like that a cluster lun igroup is kind of self documenting. Thanks for any ideas! Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.

2 1

Evolution
by Fletcher Cocquyt 12 Jan '14

12 Jan '14

Netapp is great and always will be 1st tier storage, But for many of our new use cases (SMB customers, IOPS over capacity etc) we are looking for lower cost solutions to compliment (work well with support wise) our huge ONTAP base. What other solutions have others found compliments their Netapp ecosystem ? (NB: we are running multiple 8.1.2 (7 mode) clusters and value the robust snapmirror, vfiler migration featureset thanks

7 9

perfstat maximum size
by Jordan Slingerland 12 Jan '14

12 Jan '14

Is it true that netapp cannot process a perfstat that is over25m. IBM asked me to run a perfstat for an extended period, after I captured the event they told me 80mb was too large (while compressed) and I had to redo the capture and ensure it is under 25m. Thanks, --Jordan For the fourth consecutive year, Independent Health is the highest ranked health insurance plan in the New York/New Jersey region by J.D. Power and Associates 2013 Member Health Plan StudySM. For the sixth consecutive year, Independent Health was named one of the best companies to work for in New York State. Go to www.independenthealth.com to view careers and available positions. We are an Equal Opportunity Employer. CONFIDENTIALITY NOTICE: This e-mail and its attachments (collectively referred to as "e-mail") may contain confidential information that is privileged and protected from disclosure by Federal and State confidentiality laws, rules or regulations. This e-mail is intended for the designated addressee only. If you are not the designated addressee, you are notified that any disclosure, copying or distribution of this e-mail may be unlawful and may subject you to legal consequences. If you have received this e-mail in error, please contact me immediately by telephone at (716) 631 - 3001 and delete the e-mail from your computer immediately. Thank you for your attention.

4 6

Request for opinions: IOPS Or Transfers?
by Jeff Mohler 10 Jan '14

10 Jan '14

During my time in storage, the debate over what an IOP really is, has always been important. Critically so to keep vendors honest. But lately, I have bee seeing another misuse (I think) of disk IOPS. Software transfer commands to a device being misinterpreted as a disk physical operation. Disk affinity and NCQ can greatly exaggerate the apparent performance of a spindle if transfers (Xfers) are mistakenly or willfully used and spoken to as Disk IOPS. If someone told you that you could expect (or from your gathered system data) many hundreds of Disk IOPS from Any spinning disk without mind warping latency, would you question that as a specious measurement? I would enjoy hearing what others here think about this. Do you differentiate between Xfers and Disk IOPS? This is not in any way a vendor issue or attack, just that this is the place I know where the smart kids hang out. :) Sent from my iPad

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