On Wed, 7 Jan 2004, Rainer Krienke wrote:
> In between I contacted the vendor of the hardware IDE raids. The technician
> confirmed that these raids have a read/write cache and that there is *no*
> battery backup. So in case of an active filesystem where suddenly there is a
> powerfail, it is likely that the hardware cache in the raid is not written to
> disk and the filesystem will be become inconsitent. And this very probably
> happened in my case.
>
> So the remaining question is only why xfs_repair was unable to repair the
> damaged filesystem....
If I had to hazard a guess, I'd think that the transaction log, being hit much
more frequently than most other portions of the filesystem, would be much more
aggressively cached by the hardware's algorithms, which would leave the log
that much more inconsistent than the filesystem. *That* can't help during
repairs. . .
In any event, it sounds like you need a UPS on that system now, eh?
--Arthur Corliss
Bolverk's Lair -- http://arthur.corlissfamily.org/
Digital Mages -- http://www.digitalmages.com/
"Live Free or Die, the Only Way to Live" -- NH State Motto
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