toasters

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13514 discussions

performance problems with filer and snapmirror
by Willeke, Jochen 01 Jun '06

01 Jun '06

Hello toasters, today we have a few problems with a FAS3050 (Ontap 7.0.4) which is very slow, as the users tell me. When i do a sysstat i see the CPU always between 40 and 60% which is not too much. I also had a look at the ocupied space in the aggregates and it should be ok, too. According to this we have a snapmirror-relation to a Nearstore R200 (Ontap 7.0.1R1) which is very slow. The network is not the bottleneck as we have an own storagenet (1Gb Ethernet) for these systems. I now wonder where is shall look for deeper analysis. I am a little confused right now. Perhaps anybody can help with some kind of commands different to sysstat :-) Best Regards Jochen

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Important! Account Information...
by Bank Of America. 31 May '06

31 May '06

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TSUNAMI DISASTER.
by James Dube 31 May '06

31 May '06

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820 Ontap 6.5.6 looses connections
by Stephen C Woods 31 May '06

31 May '06

We're completely baffled. NetApp Release 6.5.6: Tue Oct 4 16:54:43 PDT 2005 System ID: 0033602136 (royce) System Serial Number 102XXX (royce) System Rev: B0 Backplane Part Number: 0 Backplane Rev: B0 Backplane Serial Number: 1028811 slot 0: System Board Processors: 1 Memory Size: 1024 MB CIOB Revision ID: 3 slot 0: FastEnet-10/100 Ethernet Controller e0 MAC Address: 00:a0:98:00:dd:77 (auto-unknown-cfg_down) slot 4: Gigabit Ethernet Controller III e4 MAC Address: 00:03:47:b2:de:a0 (auto-1000sx-fd-up) slot 8: FC Host Adapter 8 42 Disks: 1449.0GB 6 shelves with VEM slot 11: NVRAM Memory Size: 128 MB Directly connected to a Cisco C6506. For the past 15 days we've been suffering from dropped (and resumed after some random time) NSF connections. What has been occurring is that the file stops responding (e.g. to pings). Connecting to the console and pinging anything restarts connections. We have another identical machine that is NOT having any problems. We have swapped NIC, Fiber cable, GBICs on the Cisco, switched ports on the Cisco, and even swapped our spare head in. Any one have any ideas? <scw> postmaster(a)seas.ucla.edu -- ----- Stephen C. Woods; UCLA SEASnet; 2567 Boelter hall; LA CA 90095; (310)-825-8614 Unless otherwise noted these statements are my own, Not those of the University of California. Internet mail:scw@seas.ucla.edu

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Looking for recommendations on a fibre channel HBA to connect a Sun v480 to a NetApp FAS3020
by Demaagd, Dave 31 May '06

31 May '06

Currently have a Sun v480 running Solaris 8, and some time in the next month or so, I'll be getting an FAS3020, and I want to hook the two units together via fibre channel, and I'm looking for recommendations on what would be a good HBA to use (or even what not to use - I'm open to any information at this point). What I've found so far, from a little googling, seems to indicate that there's not a lot out there outside of Sun's StorageTek line. -- Dave DeMaagd, DOL QA Engineering dave.demaagd(a)dig.com | 8186233755 | 8182627958

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Qtrees in 7.2
by Grey Friday 31 May '06

31 May '06

I have heard that file permissions will be preserved on mixed qtrees. Does anyone know if this is the case and how it works? Thanks, Grey

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RE: broken disk becomes spare after reconstruct
by Glenn Walker 31 May '06

31 May '06

Essentially, the drive was sent a SCSI command and wasn't ready\capable of facilitating that command. Unsure which command in question was issued, but I recollect that it has typically meant 'no response'. Glenn -----Original Message----- From: Willeke, Jochen [mailto:Jochen.Willeke@wincor-nixdorf.com] Sent: Wednesday, May 31, 2006 9:54 AM To: Glenn Walker; toasters(a)mathworks.com Subject: RE: broken disk becomes spare after reconstruct Hi, one additional question about this issue. What actually happend that made ontap produce this error: [scsi.cmd.notReadyCondition:notice]: Device 2b.35: Device returns not yet ready: CDB 0x28:18974bb9:0009: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(65103) I have never seen this error before!?! Regards and thanks for your support Jochen -----Original Message----- From: Glenn Walker [mailto:ggwalker@mindspring.com] Sent: Wednesday, May 31, 2006 3:44 PM To: Willeke, Jochen; toasters(a)mathworks.com Subject: RE: broken disk becomes spare after reconstruct Basically it appears that the disk started to work correctly again (ie, it was responsive to commands). At that point, it will return it to spare pool... Most of the time disks don't actually physically fail - ONTAP is very concerned about data consistency so it will fail misbehaving drives so that it no longer uses them. Sometimes the drives start behaving again, and can be used... ATA drives are very bad for this: they typically go into internal recovery procedures and don't communicate status to the controller\OS - FCAL drives are very good about communicating status and continuing with other operations in the meantime. I've typically seen this behavior on R200's more than FAS-series (with FCAL drives). Out of curiosity - are you utilizing 7.0.4 or newer? Wondering if maintenance garage would help... Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Willeke, Jochen Sent: Wednesday, May 31, 2006 8:50 AM To: toasters(a)mathworks.com Subject: broken disk becomes spare after reconstruct Hello Toasters :-) i have seen something strange on one of our R200. Last week i got an error message with the following output: [scsi.cmd.notReadyCondition:notice]: Device 2b.35: Device returns not yet ready: CDB 0x28:18974bb9:0009: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(65103). [scsi.cmd.checkCondition:error]: Device 2b.35: Check Condition: CDB 0x28:154efb9d:022e: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(209311). [raid.config.filesystem.disk.recovering:error]: Attempting to bring file system Disk /aggr0/plex0/rg1/2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE] back into service. ......normal procedure of taking one spare and reconstruct the raid group. But then comes what i am wondering about..... [raid.assim.disk.spare:notice]: Sparing Disk /2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE], because volume is online and complete The System takes the broken disk as a spare?!? How can this be? Perhaps anybody can help because NOW does not explain this situation deep enough to make it understandable to me :D Regards Jochen

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RE: broken disk becomes spare after reconstruct
by Willeke, Jochen 31 May '06

31 May '06

Hi, one additional question about this issue. What actually happend that made ontap produce this error: [scsi.cmd.notReadyCondition:notice]: Device 2b.35: Device returns not yet ready: CDB 0x28:18974bb9:0009: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(65103) I have never seen this error before!?! Regards and thanks for your support Jochen -----Original Message----- From: Glenn Walker [mailto:ggwalker@mindspring.com] Sent: Wednesday, May 31, 2006 3:44 PM To: Willeke, Jochen; toasters(a)mathworks.com Subject: RE: broken disk becomes spare after reconstruct Basically it appears that the disk started to work correctly again (ie, it was responsive to commands). At that point, it will return it to spare pool... Most of the time disks don't actually physically fail - ONTAP is very concerned about data consistency so it will fail misbehaving drives so that it no longer uses them. Sometimes the drives start behaving again, and can be used... ATA drives are very bad for this: they typically go into internal recovery procedures and don't communicate status to the controller\OS - FCAL drives are very good about communicating status and continuing with other operations in the meantime. I've typically seen this behavior on R200's more than FAS-series (with FCAL drives). Out of curiosity - are you utilizing 7.0.4 or newer? Wondering if maintenance garage would help... Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Willeke, Jochen Sent: Wednesday, May 31, 2006 8:50 AM To: toasters(a)mathworks.com Subject: broken disk becomes spare after reconstruct Hello Toasters :-) i have seen something strange on one of our R200. Last week i got an error message with the following output: [scsi.cmd.notReadyCondition:notice]: Device 2b.35: Device returns not yet ready: CDB 0x28:18974bb9:0009: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(65103). [scsi.cmd.checkCondition:error]: Device 2b.35: Check Condition: CDB 0x28:154efb9d:022e: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(209311). [raid.config.filesystem.disk.recovering:error]: Attempting to bring file system Disk /aggr0/plex0/rg1/2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE] back into service. ......normal procedure of taking one spare and reconstruct the raid group. But then comes what i am wondering about..... [raid.assim.disk.spare:notice]: Sparing Disk /2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE], because volume is online and complete The System takes the broken disk as a spare?!? How can this be? Perhaps anybody can help because NOW does not explain this situation deep enough to make it understandable to me :D Regards Jochen

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RE: broken disk becomes spare after reconstruct
by Glenn Walker 31 May '06

31 May '06

Maintenance Garage is a new functionality (introduced in 7.0.4 I believe) that helps to remove drives when they aren't functioning properly and trying to recover them without outright failing them. It is also supposed to allow operations to continue to all other drives in the raidgroup and when\if the drive is recoverable only update the changes that the one questionable drive has missed. I'm paraphrasing quite a bit, but I recall that to be the gist. Either way, pretty cool stuff. Glenn -----Original Message----- From: Willeke, Jochen [mailto:Jochen.Willeke@wincor-nixdorf.com] Sent: Wednesday, May 31, 2006 9:51 AM To: Glenn Walker; toasters(a)mathworks.com Subject: RE: broken disk becomes spare after reconstruct Hi toasters, we are running 7.0.1R1. BTW: what is the maintenance garage? Never heard of this. Regards Jochen -----Original Message----- From: Glenn Walker [mailto:ggwalker@mindspring.com] Sent: Wednesday, May 31, 2006 3:44 PM To: Willeke, Jochen; toasters(a)mathworks.com Subject: RE: broken disk becomes spare after reconstruct Basically it appears that the disk started to work correctly again (ie, it was responsive to commands). At that point, it will return it to spare pool... Most of the time disks don't actually physically fail - ONTAP is very concerned about data consistency so it will fail misbehaving drives so that it no longer uses them. Sometimes the drives start behaving again, and can be used... ATA drives are very bad for this: they typically go into internal recovery procedures and don't communicate status to the controller\OS - FCAL drives are very good about communicating status and continuing with other operations in the meantime. I've typically seen this behavior on R200's more than FAS-series (with FCAL drives). Out of curiosity - are you utilizing 7.0.4 or newer? Wondering if maintenance garage would help... Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Willeke, Jochen Sent: Wednesday, May 31, 2006 8:50 AM To: toasters(a)mathworks.com Subject: broken disk becomes spare after reconstruct Hello Toasters :-) i have seen something strange on one of our R200. Last week i got an error message with the following output: [scsi.cmd.notReadyCondition:notice]: Device 2b.35: Device returns not yet ready: CDB 0x28:18974bb9:0009: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(65103). [scsi.cmd.checkCondition:error]: Device 2b.35: Check Condition: CDB 0x28:154efb9d:022e: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(209311). [raid.config.filesystem.disk.recovering:error]: Attempting to bring file system Disk /aggr0/plex0/rg1/2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE] back into service. ......normal procedure of taking one spare and reconstruct the raid group. But then comes what i am wondering about..... [raid.assim.disk.spare:notice]: Sparing Disk /2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE], because volume is online and complete The System takes the broken disk as a spare?!? How can this be? Perhaps anybody can help because NOW does not explain this situation deep enough to make it understandable to me :D Regards Jochen

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RE: broken disk becomes spare after reconstruct
by Willeke, Jochen 31 May '06

31 May '06

Hi toasters, we are running 7.0.1R1. BTW: what is the maintenance garage? Never heard of this. Regards Jochen -----Original Message----- From: Glenn Walker [mailto:ggwalker@mindspring.com] Sent: Wednesday, May 31, 2006 3:44 PM To: Willeke, Jochen; toasters(a)mathworks.com Subject: RE: broken disk becomes spare after reconstruct Basically it appears that the disk started to work correctly again (ie, it was responsive to commands). At that point, it will return it to spare pool... Most of the time disks don't actually physically fail - ONTAP is very concerned about data consistency so it will fail misbehaving drives so that it no longer uses them. Sometimes the drives start behaving again, and can be used... ATA drives are very bad for this: they typically go into internal recovery procedures and don't communicate status to the controller\OS - FCAL drives are very good about communicating status and continuing with other operations in the meantime. I've typically seen this behavior on R200's more than FAS-series (with FCAL drives). Out of curiosity - are you utilizing 7.0.4 or newer? Wondering if maintenance garage would help... Glenn -----Original Message----- From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Willeke, Jochen Sent: Wednesday, May 31, 2006 8:50 AM To: toasters(a)mathworks.com Subject: broken disk becomes spare after reconstruct Hello Toasters :-) i have seen something strange on one of our R200. Last week i got an error message with the following output: [scsi.cmd.notReadyCondition:notice]: Device 2b.35: Device returns not yet ready: CDB 0x28:18974bb9:0009: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(65103). [scsi.cmd.checkCondition:error]: Device 2b.35: Check Condition: CDB 0x28:154efb9d:022e: Sense Data SCSI:not ready - (0x2 - 0x4 0x7 0x2a)(209311). [raid.config.filesystem.disk.recovering:error]: Attempting to bring file system Disk /aggr0/plex0/rg1/2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE] back into service. ......normal procedure of taking one spare and reconstruct the raid group. But then comes what i am wondering about..... [raid.assim.disk.spare:notice]: Sparing Disk /2b.35 Shelf 2 Bay 3 [NETAPP X266_MTOMC320PAD R5VV] S/N [A81K4MBE], because volume is online and complete The System takes the broken disk as a spare?!? How can this be? Perhaps anybody can help because NOW does not explain this situation deep enough to make it understandable to me :D Regards Jochen

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