fix remote degraded gmirror

Robin Becker robin at
Mon Sep 28 09:43:38 UTC 2009

I have a freebsd 6.1 system with a gmirror raid 1 which is degraded.

Originally I had /dev/ad4 & /dev/ad6, but I'm getting a degraded status and log 
messages reporting dergraded status and uncorrectable block for ad4.

Obviously I need to remove the device and get it replaced and then insert back 
into the mirror.

However, this is a remote machine and I need to get the right disk fixed.

Is there a way I can get the colocation engineer to replace the right disk?

I guess I need to do 1) figure out what kind of disk this is and 2) figure out 
some information to allow them to identify.

I looked at the smartctl output and see this

Device Model:     WDC WD1600JS-22MHB0
Serial Number:    WD-WCANM4438410

Device Model:     WDC WD1600JS-22MHB0
Serial Number:    WD-WCANM4434657

is this sufficient to enable a data centre engineer to fix my problem?
Robin Becker

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