Hi Peter,
first of all, is there some date setup problem with your client
machine or has the issue been resolved as it is from May? ;)
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From: Peter <pkozbial@xxxxxxxxx>
Subject: SSD failed - can I recover data from HDDs
Date: Sun, 24 May 2015 00:46:33 +0000 (UTC)
Zitat von Peter <pkozbial@xxxxxxxxx>:
I've set up bcache with one SSD and two HDD (using btrfs).
Unfortunately after power failure the first SSD partition (root) is
corrupted, the second (swap) and the third (bcache caching) are fine.
I have two (btrfs formatted) hard drives and would really really love to
have my data recovered from the hard drives (2 x 5TB). Is there any guide
how to do that?
have you tried booting the machine via some recovery media, loading
the bcache module and then manually registering both the cache and the
backing devices? If both HDDs and the caching partition on the SSD are
intact, this should work.
Generally, I'd then backup the data that you want to keep safe.
Depending on what you intent to do with the SSD and how bcache was set
up, you then may want to make sure the cache is fully migrated to the
HDDs. That should enable you to replace the SSD, if desired.
You have not indicated what you want to do to recover the remainders
of your system - if you simply want to reload some backup, then
setting up bcache manually should be ok. If you're reinstalling your
"root" (without touching the bcache'd devices nor the bcache
partition) and set up bcache afterward, you ought to be fine, too.
Regards,
Jens
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