isp errors with QLogic 2312 / DL380 / MSA 1500

[Scott Long]

Brad Miele wrote:

> Hello,
> 
> I have recently moved from individual HP MS30 SCSI shelves to the HP MSA 
> 1500 SAN with two MS30 SCSI shelves and two MS20 SATA shelves.
> 
> I am seeing the following in messages:
> 
> Dec  9 13:42:16 bwayipn04 kernel: isp0: command timed out for 0.125.4
> Dec  9 13:49:58 bwayipn04 last message repeated 4 times
> Dec  9 13:55:48 bwayipn04 last message repeated 2 times
> Dec  9 13:59:44 bwayipn04 kernel: (da3:isp0:0:125:4): READ(10). CDB: 28 
> 0 6a 54 85 bf 0 0 80 0
> Dec  9 13:59:44 bwayipn04 kernel: (da3:isp0:0:125:4): CAM Status: SCSI 
> Status Error
> Dec  9 13:59:44 bwayipn04 kernel: (da3:isp0:0:125:4): SCSI Status: Check 
> Condition
> Dec  9 13:59:44 bwayipn04 kernel: (da3:isp0:0:125:4): UNIT ATTENTION 
> asc:29,0
> Dec  9 13:59:44 bwayipn04 kernel: (da3:isp0:0:125:4): Power on, reset, 
> or bus device reset occurred
> Dec  9 13:59:44 bwayipn04 kernel: (da3:isp0:0:125:4): Retrying Command 
> (per Sense Data)
> Dec  9 13:59:45 bwayipn04 kernel: (da1:isp0:0:125:2): WRITE(10). CDB: 2a 
> 0 88 7a 71 9f 0 0 20 0
> Dec  9 13:59:45 bwayipn04 kernel: (da1:isp0:0:125:2): CAM Status: SCSI 
> Status Error
> Dec  9 13:59:45 bwayipn04 kernel: (da1:isp0:0:125:2): SCSI Status: Check 
> Condition
> Dec  9 13:59:45 bwayipn04 kernel: (da1:isp0:0:125:2): UNIT ATTENTION 
> asc:29,0
> Dec  9 13:59:45 bwayipn04 kernel: (da1:isp0:0:125:2): Power on, reset, 
> or bus device reset occurred
> Dec  9 13:59:45 bwayipn04 kernel: (da1:isp0:0:125:2): Retrying Command 
> (per Sense Data)
> Dec  9 14:00:24 bwayipn04 kernel: (da2:isp0:0:125:3): READ(10). CDB: 28 
> 0 1 21 13 ff 0 0 20 0
> Dec  9 14:00:24 bwayipn04 kernel: (da2:isp0:0:125:3): CAM Status: SCSI 
> Status Error
> Dec  9 14:00:24 bwayipn04 kernel: (da2:isp0:0:125:3): SCSI Status: Check 
> Condition
> Dec  9 14:00:24 bwayipn04 kernel: (da2:isp0:0:125:3): UNIT ATTENTION 
> asc:29,0
> Dec  9 14:00:24 bwayipn04 kernel: (da2:isp0:0:125:3): Power on, reset, 
> or bus device reset occurred
> Dec  9 14:00:24 bwayipn04 kernel: (da2:isp0:0:125:3): Retrying Command 
> (per Sense Data)
> Dec  9 14:08:00 bwayipn04 kernel: isp0: command timed out for 0.125.4
> Dec  9 14:08:00 bwayipn04 kernel: isp0: command timed out for 0.125.4
> 
> the time out errors occur more often, and while the device recovers (it 
> seems), it does stop i/o while it works itself out. This is my first 
> venture into the fiber waters, and coming off of really solid 
> performance with the scsi shelves i am a bit worried. can anyone offer 
> any pointers on where to start looking here?
> 
> regards,
> 
> Brad

This can mean that you have a bad power supply, or that the drive is
having significant problems, or that an unexpected bus reset happened.
The latter is the least likely.

Scott