A1000 Raid Volumes inaccessible

[sol143]

Hi All,

I am having some issues with an Old A1000 disk array that was working pretty fine last week and suddenly, stops working under Solaris-9 and gives me some errors/(WARNING):


Aug 16 17:30:14 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):
Aug 16 17:30:14 s008 Unit Attention retries exhausted. Check the target.
Aug 16 17:31:14 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):
Aug 16 17:31:14 s008 Unit Attention retries exhausted. Check the target.
Aug 16 17:32:14 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):
Aug 16 17:32:14 s008 Unit Attention retries exhausted. Check the target.

I spent a lot of hours searching on Google for this WARNING message, but
I can not find it anywhere.

Note: /pci@1f,0/pci@1/scsi@5/sd@4,0 represents the A1000 device (target:4, lun:0)

I will appreciate any input on that.

Thanks.

 

[KenCunningham]

Are you seeing anything in Raid Manager? Any amber lights on the array?

All I ask of you
Is make my wildest dreams come true

 

[djr111]

have tried re-seating the drive that is giving an error. I have seen this before, for us the problem was a drive. When the system gives the error "Unit Attention" it is telling the server that something has been marked as failed. In our case it was a drive. If you have the ability to replace that drive, you might thnk about it. The problem is that the error is just looping, and eventually overwheliming your system.

We did not have any type of amber lights on the array in our case, i'm guessing you do not either.

What does iostat -En say bout the drive?
Do you have a bunch of hard errors?

 

[KenCunningham]

Sorry, I misled. The (usually green) disk light turns amber in case of a fault, at least in our case (if you'll forgive the slight pun).

All I ask of you
Is make my wildest dreams come true

 

[alray]

What does RM6 say about it?, assuming you have it installed?. Failing that have you run "healthck -a" to get an idea of any problems.

Ray

Even a bad day at the races is better than a good day at the office.

 

[sol143]

Hi All,

I do not have physical access to the A1000, but one of the tech in the Data center where the Disk Array is located says there is "No amber disk light on the array".

I checked all the logs in /var/adm/messages.?, and I found some "kern.notice" messages just before losing contact with the array.

Aug 16 08:16:19 s008 scsi: [ID 107833 kern.notice] Sense Key: Unit Attention
Aug 16 08:16:19 s008 scsi: [ID 107833 kern.notice] ASC: 0x3f (<vendor unique code 0x3f>), ASCQ: 0x1, FRU: 0x0
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):
Aug 16 08:16:20 s008 Error for Command: write Error Level: Retryable
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] Requested Block: 1760 Error Block: 1760
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] Vendor: Symbios Serial Number: X D
(
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] Sense Key: Unit Attention
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] ASC: 0x3f (<vendor unique code 0x3f>), ASCQ: 0x1, FRU: 0x0
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):
Aug 16 08:16:20 s008 Error for Command: write Error Level: Retryable
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] Requested Block: 1760 Error Block: 1760
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] Vendor: Symbios Serial Number: X D
(
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] Sense Key: Unit Attention
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.notice] ASC: 0x3f (<vendor unique code 0x3f>), ASCQ: 0x1, FRU: 0x0
Aug 16 08:16:20 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):
Aug 16 08:16:20 s008 Unit Attention retries exhausted. Check the target.
Aug 16 08:16:20 s008 rdriver: [ID 486355 kern.notice] ID[RAIDarray.rdriver.4003] The Array driver is returning an Errored
I/O, with errno 5, on AnySystem, Lun 0, sector 1760
Aug 16 08:16:20 s008 ufs: [ID 702911 kern.warning] WARNING: Error writing ufs log
Aug 16 08:16:20 s008 ufs: [ID 127457 kern.warning] WARNING: ufs log for /home changed state to Error
Aug 16 08:16:20 s008 ufs: [ID 616219 kern.warning] WARNING: Please umount(1M) /home and run fsck(1M)
Aug 16 08:17:22 s008 scsi: [ID 107833 kern.warning] WARNING: /pci@1f,0/pci@1/scsi@5/sd@4,0 (sd35):

I did a little search and found

Sense Key: 6
ASC:0x3f/ASQ:0x1 means "Drive Microcode Changed"

I do not know why I have this message.

And If there is one Disk failure, How will I know which of the Disks is the culprit.

Each disk has a "green light" operational status.

Thank all.

 

[KenCunningham]

Do you have Raid Manager (RM6) available?

All I ask of you
Is make my wildest dreams come true