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13520 discussions

Re: dlt autoloaders
by Darrell Fuhriman 09 Sep '00

09 Sep '00

Brian Tao <taob(a)risc.org> writes: > Out of curiosity, what's the aggregate throughput on your backups > to 12 DLT7000's? They should be able to do, what, 5MB/sec if you can > stream data to them consistently? 12 drives would be 60MB/sec... are You can push much more than that -- we sustain 10-12MB/sec to a DLT7000. > you actually seeing that much throughput over the network? Yes, we see 60MB/sec, and have pushed more in tests. Darrell

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Re: gigabit ethernet performance
by Eyal Traitel 09 Sep '00

09 Sep '00

Only on 6.0 buddy... Eyal. --- Brian Tao <taob(a)risc.org> wrote: > On Thu, 7 Sep 2000, Eyal Traitel wrote: > > > > Have you considered Jumbo packets ? It could help you... > > How do you set a jumbo frame size on a Netapp? I recall trying a > few combinations of ifconfig invocations, but nothing would bump it > up > to 9K. > -- > Brian Tao (BT300, taob(a)risc.org) > "Though this be madness, yet there is method in't" > ===== Yours, Eyal Traitel eTraitel(a)yahoo.com, Home: 972-3-5290415 (Tel Aviv) *** eTraitel - it's the new eBuzzword ! *** __________________________________________________ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/

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Re: gigabit ethernet performance
by Eyal Traitel 09 Sep '00

09 Sep '00

Marcus, Have you considered Jumbo packets ? It could help you... Eyal. Marcus Smiley <marcus.smiley(a)ericsson.com> wrote: Does anyone have any benchmarks/suggestions for poor performace with gigabit ethernet between Sun enterprise 220R and NetApp 740 with Intel GBII card? I have an open ticket w/Netapp and it's been open forever. These machines are directly attached (private network), and I've tried a mkfile and copying that file back during the day and at night (no load) and it makes no difference. The performance is ~ 10 MB/s, no matter what. The Sun is running Solaris 8, with latest GB Ethernet 3.0 drivers and patches. Also, the Sun box's only function is Legato server, so I've even stopped all nsr daemons while the test copy/mkfile is in progress, & it makes no difference. I've tried NFSv2 vs. NFSv3, with 32k size packets and 8k size packets. I've tried tcp and udp, with the same results. The /etc/system file on the E220R looks like this, for the ge adapter: * Increase size of STREAMS syncronized queues to increase network * performance. Release notes for qfe card recommends setting this * to 25 per 64Mbytes of RAM in the system. It also prevents * receive overrun on the GbE interface. msmiley 7/20/00 set sq_max_size=775 set ge:ge_adv_1000autoneg_cap=0 set ge:ge_adv_1000fdx_cap=1 set ge:ge_adv_pauseTX=1 Also, I've set tcp/udp specific stuff per the Netapp tech suppt. folks: ndd -set /dev/udp udp_recv_hiwat 65535 ndd -set /dev/udp udp_xmit_hiwat 65535 ndd -set /dev/tcp tcp_recv_hiwat 65535 ndd -set /dev/tcp tcp_xmit_hiwat 65535 The netapp is a 740 (5.3.6R1P1) with over 100GB of free space available on the volume I'm copying to/from. Interestingly enough, I have done a packet trace (pktt) on the GBII card and it looks OK. Also, the throughput from my 100BaseT card to the netapp (thru a catalyst 5500) does ~ 7.5 MB/s. *Any* input here would be much appreciated. -Marc Marcus Smiley | Ericsson Wireless Communications, Inc. Unix Sys Admin | 6210 Spine Rd. Boulder, CO 80301 | Ph (303) 473-6903 Yours, Eyal Traitel eTraitel(a)yahoo.com, Home: 972-3-5290415 (Tel Aviv) *** eTraitel - it's the new eBuzzword ! *** --------------------------------- Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere!

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gigabit ethernet performance
by Marcus Smiley 09 Sep '00

09 Sep '00

Does anyone have any benchmarks/suggestions for poor performace with gigabit ethernet between Sun enterprise 220R and NetApp 740 with Intel GBII card? I have an open ticket w/Netapp and it's been open forever. These machines are directly attached (private network), and I've tried a mkfile and copying that file back during the day and at night (no load) and it makes no difference. The performance is ~ 10 MB/s, no matter what. The Sun is running Solaris 8, with latest GB Ethernet 3.0 drivers and patches. Also, the Sun box's only function is Legato server, so I've even stopped all nsr daemons while the test copy/mkfile is in progress, & it makes no difference. I've tried NFSv2 vs. NFSv3, with 32k size packets and 8k size packets. I've tried tcp and udp, with the same results. The /etc/system file on the E220R looks like this, for the ge adapter: * Increase size of STREAMS syncronized queues to increase network * performance. Release notes for qfe card recommends setting this * to 25 per 64Mbytes of RAM in the system. It also prevents * receive overrun on the GbE interface. msmiley 7/20/00 set sq_max_size=775 set ge:ge_adv_1000autoneg_cap=0 set ge:ge_adv_1000fdx_cap=1 set ge:ge_adv_pauseTX=1 Also, I've set tcp/udp specific stuff per the Netapp tech suppt. folks: ndd -set /dev/udp udp_recv_hiwat 65535 ndd -set /dev/udp udp_xmit_hiwat 65535 ndd -set /dev/tcp tcp_recv_hiwat 65535 ndd -set /dev/tcp tcp_xmit_hiwat 65535 The netapp is a 740 (5.3.6R1P1) with over 100GB of free space available on the volume I'm copying to/from. Interestingly enough, I have done a packet trace (pktt) on the GBII card and it looks OK. Also, the throughput from my 100BaseT card to the netapp (thru a catalyst 5500) does ~ 7.5 MB/s. *Any* input here would be much appreciated. -Marc Marcus Smiley | Ericsson Wireless Communications, Inc. Unix Sys Admin | 6210 Spine Rd. Boulder, CO 80301 | Ph (303) 473-6903

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dlt autoloaders
by neil lehrer 09 Sep '00

09 Sep '00

hi, i'd like recommendations for a dlt autoloader to be attached to an f760 and controlled by legato. thanks. --

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RE: Deleting snapshot
by Premanshu Jain 09 Sep '00

09 Sep '00

Ndmpd status, doesn't revealany active ndmp sessions. These snapshots date back to 17 Aug. Any other way out..avoiding reboot prem -----Original Message----- From: Steve Kappel [mailto:steve.kappel@raistlin.min.ov.com] Sent: Friday, September 08, 2000 1:22 PM To: mrb(a)netapp.com; PrJain(a)shastanets.com Cc: toasters(a)mathworks.com Subject: RE: Deleting snapshot No, not a chance that it is the backup software (NDMP client). Consider this - if your network link goes down your backup (NDMP client) is aborted. Since you have no network link there is no way the backup product can do anything in NDMP to abort or cleanup the backup running in the filer. The filer has to be able to clean up from the NDMP session socket "going away". Since you have "failed backup processes" the NDMP session is closed on the client side. So it is OnTap that is not functioning correctly. You might try looking for the NDMP sessions with "ndmpd status" on the filer and then kill any that are running with "ndmpd kill <sessionid>". >From: Premanshu Jain <PrJain(a)shastanets.com> >To: "'mrb(a)netapp.com'" <mrb(a)netapp.com>, Premanshu Jain <PrJain(a)shastanets.com> >Cc: toasters(a)mathworks.com >Subject: RE: Deleting snapshot >Date: Fri, 8 Sep 2000 11:09:01 -0700 > >NDMP or Veritas Netbackup. All these snapshots were a part of failed backups >prem > >-----Original Message----- >From: J. Bryan Kelsch [mailto:mrb@netapp.com] >Sent: Friday, September 08, 2000 11:13 AM >To: Premanshu Jain >Cc: toasters(a)mathworks.com >Subject: Re: Deleting snapshot > > >This is not a function the filer, it is an error in the backup software that >is not cleaning up properly. > > > > >> >> >> >>You have to reboot first. >> >> >>On Fri, 8 Sep 2000 10:42:26 -0700 , you wrote: >> >>>I have some snapshots created by failed backup processes and shows them >busy >>>still. How can I delete them..? >>> >>> >>>Volume sw >>>working.................................................................. . >.. >>>......................................................................... . >.. >>>.................................... >>> >>> %/used %/total date name >>>---------- ---------- ------------ -------- >>> 3% ( 3%) 2% ( 2%) Sep 07 18:04 bot_sw.1 >>> 4% ( 3%) 3% ( 2%) Sep 07 16:12 hourly.0 >>> 4% ( 4%) 3% ( 3%) Sep 07 12:10 hourly.1 >>> 5% ( 4%) 3% ( 3%) Sep 07 08:10 hourly.2 >>> 5% ( 4%) 4% ( 3%) Sep 07 00:11 nightly.0 >>> 6% ( 4%) 4% ( 3%) Sep 06 20:11 hourly.3 >>> 7% ( 4%) 5% ( 3%) Sep 06 16:12 hourly.4 >>> 7% ( 4%) 5% ( 3%) Sep 06 12:10 hourly.5 >>> 8% ( 4%) 6% ( 3%) Sep 06 00:08 nightly.1 >>> 19% (15%) 17% (12%) Aug 20 21:52 snapshot_for_backup.32 (busy) >>> 20% (15%) 17% (12%) Aug 19 22:46 snapshot_for_backup.30 (busy) >>> 21% (15%) 19% (12%) Aug 17 04:08 snapshot_for_backup.23 (busy) > > >------------------------ >J. Bryan Kelsch, PSE >Network Appliance >5220 Spring Valley Road - Suite 350 >Dallas, TX 75240 >972.759.7528 Office >817.821.0350 Cell >888.374.6422 Pager __________________________________________________________________________ Steve Kappel steve.kappel(a)veritas.com VERITAS Software steve.kappel(a)iname.com (Personal)

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multiple raid grps in filesystem on filer
by neil lehrer 08 Sep '00

08 Sep '00

hi, i understand that having more than 1 raid grp in a filesystem makes the filer more fault tolerant of a full raid grp failure. so lets say there are two raid grps in the filesystem. if you lose a raid grp [2 drives fail] how do you restore it? i can understand restoring the whole filesystem or a qtree or a dir, but if files and dirs can go across more than 1 raid grp in a filesystem what is the advantage of short restore of the broken raid grp? how do you put back just that raid group? i know you can replace the bad drives and then recreate the group but how do you restore the data for just that raid grp? thanks

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RE: Deleting snapshot
by Steve Kappel 08 Sep '00

08 Sep '00

No, not a chance that it is the backup software (NDMP client). Consider this - if your network link goes down your backup (NDMP client) is aborted. Since you have no network link there is no way the backup product can do anything in NDMP to abort or cleanup the backup running in the filer. The filer has to be able to clean up from the NDMP session socket "going away". Since you have "failed backup processes" the NDMP session is closed on the client side. So it is OnTap that is not functioning correctly. You might try looking for the NDMP sessions with "ndmpd status" on the filer and then kill any that are running with "ndmpd kill <sessionid>". >From: Premanshu Jain <PrJain(a)shastanets.com> >To: "'mrb(a)netapp.com'" <mrb(a)netapp.com>, Premanshu Jain <PrJain(a)shastanets.com> >Cc: toasters(a)mathworks.com >Subject: RE: Deleting snapshot >Date: Fri, 8 Sep 2000 11:09:01 -0700 > >NDMP or Veritas Netbackup. All these snapshots were a part of failed backups >prem > >-----Original Message----- >From: J. Bryan Kelsch [mailto:mrb@netapp.com] >Sent: Friday, September 08, 2000 11:13 AM >To: Premanshu Jain >Cc: toasters(a)mathworks.com >Subject: Re: Deleting snapshot > > >This is not a function the filer, it is an error in the backup software that >is not cleaning up properly. > > > > >> >> >> >>You have to reboot first. >> >> >>On Fri, 8 Sep 2000 10:42:26 -0700 , you wrote: >> >>>I have some snapshots created by failed backup processes and shows them >busy >>>still. How can I delete them..? >>> >>> >>>Volume sw >>>working................................................................... >.. >>>.......................................................................... >.. >>>.................................... >>> >>> %/used %/total date name >>>---------- ---------- ------------ -------- >>> 3% ( 3%) 2% ( 2%) Sep 07 18:04 bot_sw.1 >>> 4% ( 3%) 3% ( 2%) Sep 07 16:12 hourly.0 >>> 4% ( 4%) 3% ( 3%) Sep 07 12:10 hourly.1 >>> 5% ( 4%) 3% ( 3%) Sep 07 08:10 hourly.2 >>> 5% ( 4%) 4% ( 3%) Sep 07 00:11 nightly.0 >>> 6% ( 4%) 4% ( 3%) Sep 06 20:11 hourly.3 >>> 7% ( 4%) 5% ( 3%) Sep 06 16:12 hourly.4 >>> 7% ( 4%) 5% ( 3%) Sep 06 12:10 hourly.5 >>> 8% ( 4%) 6% ( 3%) Sep 06 00:08 nightly.1 >>> 19% (15%) 17% (12%) Aug 20 21:52 snapshot_for_backup.32 (busy) >>> 20% (15%) 17% (12%) Aug 19 22:46 snapshot_for_backup.30 (busy) >>> 21% (15%) 19% (12%) Aug 17 04:08 snapshot_for_backup.23 (busy) > > >------------------------ >J. Bryan Kelsch, PSE >Network Appliance >5220 Spring Valley Road - Suite 350 >Dallas, TX 75240 >972.759.7528 Office >817.821.0350 Cell >888.374.6422 Pager __________________________________________________________________________ Steve Kappel steve.kappel(a)veritas.com VERITAS Software steve.kappel(a)iname.com (Personal)

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RE: Deleting snapshot
by Premanshu Jain 08 Sep '00

08 Sep '00

Oh..This is CRAZY on part of NetAPPS...!!!!!!!!!! -----Original Message----- From: J. Bryan Kelsch [mailto:mrb@netapp.com] Sent: Friday, September 08, 2000 10:56 AM To: Premanshu Jain Subject: Re: Deleting snapshot You have to reboot first. On Fri, 8 Sep 2000 10:42:26 -0700 , you wrote: >I have some snapshots created by failed backup processes and shows them busy >still. How can I delete them..? > > >Volume sw >working.................................................................... . >........................................................................... . >.................................... > > %/used %/total date name >---------- ---------- ------------ -------- > 3% ( 3%) 2% ( 2%) Sep 07 18:04 bot_sw.1 > 4% ( 3%) 3% ( 2%) Sep 07 16:12 hourly.0 > 4% ( 4%) 3% ( 3%) Sep 07 12:10 hourly.1 > 5% ( 4%) 3% ( 3%) Sep 07 08:10 hourly.2 > 5% ( 4%) 4% ( 3%) Sep 07 00:11 nightly.0 > 6% ( 4%) 4% ( 3%) Sep 06 20:11 hourly.3 > 7% ( 4%) 5% ( 3%) Sep 06 16:12 hourly.4 > 7% ( 4%) 5% ( 3%) Sep 06 12:10 hourly.5 > 8% ( 4%) 6% ( 3%) Sep 06 00:08 nightly.1 > 19% (15%) 17% (12%) Aug 20 21:52 snapshot_for_backup.32 (busy) > 20% (15%) 17% (12%) Aug 19 22:46 snapshot_for_backup.30 (busy) > 21% (15%) 19% (12%) Aug 17 04:08 snapshot_for_backup.23 (busy) ------------------------ J. Bryan Kelsch, PSE Network Appliance 5220 Spring Valley Road - Suite 350 Dallas, TX 75240 972.759.7528 Office 817.821.0350 Cell 888.374.6422 Pager

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Deleting snapshot
by Premanshu Jain 08 Sep '00

08 Sep '00

I have some snapshots created by failed backup processes and shows them busy still. How can I delete them..? Volume sw working..................................................................... ............................................................................ .................................... %/used %/total date name ---------- ---------- ------------ -------- 3% ( 3%) 2% ( 2%) Sep 07 18:04 bot_sw.1 4% ( 3%) 3% ( 2%) Sep 07 16:12 hourly.0 4% ( 4%) 3% ( 3%) Sep 07 12:10 hourly.1 5% ( 4%) 3% ( 3%) Sep 07 08:10 hourly.2 5% ( 4%) 4% ( 3%) Sep 07 00:11 nightly.0 6% ( 4%) 4% ( 3%) Sep 06 20:11 hourly.3 7% ( 4%) 5% ( 3%) Sep 06 16:12 hourly.4 7% ( 4%) 5% ( 3%) Sep 06 12:10 hourly.5 8% ( 4%) 6% ( 3%) Sep 06 00:08 nightly.1 19% (15%) 17% (12%) Aug 20 21:52 snapshot_for_backup.32 (busy) 20% (15%) 17% (12%) Aug 19 22:46 snapshot_for_backup.30 (busy) 21% (15%) 19% (12%) Aug 17 04:08 snapshot_for_backup.23 (busy)

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