[CentOS] raid resync deleting data?
qwerty.nat at gmail.com
Mon Jan 2 23:18:47 UTC 2012
I have a c5 box with a 6 drive raid 6 array.
I was going away over Christmas so I was shutting the machine down,
I noticed a raid resync (on the raid 6 array) so i stopped it,
using the command
# echo "idle" > /sys/block/md5/md/sync_action
then shut the machine down.
A week later I turned the machine on and started copying data to it
around 24 hours later a raid resync occurred and wiped all the new
data I had copied to it.
To me this seems broken, is it because I manually stopped a previous
resync that it got in this state?
As for log messages there is nothing in the /var/log/messages file, only
Jan 2 19:38:39 bolivia kernel: md: syncing RAID array md5
Jan 2 19:38:39 bolivia kernel: md: minimum _guaranteed_ reconstruction
speed: 1000 KB/sec/disc.
Jan 2 19:38:39 bolivia kernel: md: using maximum available idle IO
bandwidth (but not more than 200000 KB/sec) for reconstruction.
no other errors or anything.
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