Re: WAE 674 RAID Failure

james.robinson · ‎12-08-2011

I replaced the disk in Slot 3, which was defective. After replacement, the disk showed "Online" in show disk detail within 15 mins of replacement. This seemed odd, it usually requires more than 1 hour to rebuild a disk. However, the RAID-5 status showed "Critical".

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When I execute a "disk logical shutdown", reload, then attempt to execute "disk recreate-raid" I get this returned:

Failed to remove RAID Logical drive. (1,2)
Controllers found: 1

A selected physical drive is not available for use.

Command aborted.
Failed to create RAID Logical drive. (1,2)
Please, verify the disk does not contain mounted file system that remain in use.
Execute the command "(config)#disk logical shutdown" and reload the device before the array is recreated.

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show disks tech-support>

Physical Device information

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Device #0

Device is a Hard drive

State : Ready

Supported : Yes

Transfer Speed : SAS 3.0 Gb/s

Reported Channel,Device : 0,0

Vendor : IBM-ESXS

Model : ST3300656SS

Firmware : BA49

Serial number : 3QP2B8BF

World-wide name : 5000C50016999C98

Size : 286102 MB

Write Cache : Disabled (write-through)

FRU : 43X0805

PFA : No

Device #1

Device is a Hard drive

State : Ready

Supported : Yes

Transfer Speed : SAS 3.0 Gb/s

Reported Channel,Device : 0,2

Vendor : IBM-ESXS

Model : ST3300656SS

Firmware : BA49

Serial number : 3QP2B712

World-wide name : 5000C50016990110

Size : 286102 MB

Write Cache : Disabled (write-through)

FRU : 43X0805

PFA : No

Device #2

Device is a Hard drive

State : Ready

Supported : Yes

Transfer Speed : SAS 3.0 Gb/s

Reported Channel,Device : 0,3

Vendor : IBM-ESXS

Model : VPBPA300C3EST1 N

Firmware : A529

Serial number : JLVVUBVC

World-wide name : 5000CCA00930C3BB

Size : 286102 MB

Write Cache : Disabled (write-through)

FRU : 43X0805

PFA : No Physical Device information

Bhavin Yadav · ‎12-08-2011

Hi James,

Please follow this process and let us know if it helps.

http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v441/configuration/guide/maint.html#wp1144150

Regards.

james.robinson · ‎12-09-2011

Thanks for your response.

What can I do in a case like below?

043879-0203A-WAAS1#disk disk-name disk03 replace

exec_disk: Invalid disk number for the current platform

The disk appears to exist:

043879-0203A-WAAS1#sh disk detail

RAID Physical disk information:

disk00: Ready 3QP2B8BF 286102 MB

disk02: Ready JLVVUBVC 286102 MB

disk03: Ready 3QP2B712 286102 MB

Thanks,

Jim Robinson

Verizon Business

Government Enterprise NOC (GENOC)

Office: 919-377-3983 (V966-3983)

Bhavin Yadav · ‎12-09-2011

Hi James,

The problem, I believe is here:

RAID Physical disk information:

disk00: Ready 3QP2B8BF 286102 MB

disk02: Ready JLVVUBVC 286102 MB

disk03: Ready 3QP2B712 286102 MB

If you check the output, it says disk01 is missing. One thing we should try is - remove disk03 and put it in place of disk01.

Further, the disks should be in "online" state, not "Ready" state. This may be hardware problem with RAID controller.

Anyway, here is the last option we can apply:

Use the system recovery process, if you can. The steps you may want to perform are step 7: Rebuild RAID. And then Step 8: Install .bin image.

Let us know how it goes.

Thanks.