Cisco WAAS - RAID error - Stripe order (Channel,Device): DDD 0,1 0,2 0,3

joergklopottek · ‎10-15-2010

Hello!!

On two Cisco WAAS is a "Raid error" shown.

Device 1: WAE-674-K9

Device 2: WAE-7341-K9

It seems the issue depends on an incorrect stripe order:

----------------------------------------------------------------------
Logical drive information
----------------------------------------------------------------------
Logical drive number 1
   Logical drive name                  : Drive 1
   RAID level                          : 5
   Status of logical drive             : Critical
   Size                                : 857088 MB
   Read-cache mode                     : Enabled
   Write-cache mode                    : Enabled (write-back)
   Write-cache setting                 : Enabled (write-back) when protected by
battery
   Partitioned                         : Yes
   Number of chunks                    : 4
   Stripe-unit size                    : 256 KB
   Stripe order (Channel,Device)       : DDD 0,1 0,2 0,3
   Bad stripes                         : No

----------------------------------------------------------------------
Physical Device information
----------------------------------------------------------------------

On other devices without an error is the stripe order:

Stripe order (Channel,Device) : 0,0 0,1 0,2

What could be done to solve the issue?

Couldn't found any information until now for this...

Thanks for some information!

Kind regards,

Joerg Klopottek

Marcin Latosiewicz · ‎10-15-2010

Joerg,

When did that error pop up? I find it hard that two devices are affected in a similar fashion out of the blue

Check if all diska are OK

"show disk detail"

And if bad comes to worse you can always re-create RAID with rescue CD.

Marcin

Bhavin Yadav · ‎10-15-2010

Hi Joerg,

Can you paste "show disk tech" CLI output here?

Regards.