Hello all,
We have implemented a RAID-5 array on one of our systems here,
and are doing some testing on it. It's a 6 disk array of 16GB drives
all on /dev/md0 with the e2fs made with 'mke2fs -b 4096 -R stride=8
/dev/md0'.
1.Is the array still useable after it looses a drive?
We've yanked the power out of a running drive two seperate
times, and it has not worked correctly afterwards. Although we get a
message that implies it's running properly in degraded mode, the
actuall file system seems to be corrupted.
2.What exactly do you need to do to get an array back up after a
drive failure? We haven't been able to find this documented anywhere.
3.Is it safe to do an fsck on the crippled drive array? We did
one and it went nuts, killing all our data. One weird error was 'large
files found, but LARGE_FILES flag is not set in superblock set<y>?'
We said yes to this, was that a problem?
