I have a software RAID 5 (LVM, XFS) with three 2 TB drives.
Is it possible to mount the RAID with one missing drive (instead of having to rebuild it)? How would this be done?
My /etc/fstab contains the following line that usually mounted the RAID:
UUID=0f117576-60bb-4712-8a99-5b6b278057a8 /mnt/data xfs defaults,nofail,exec,usrquota,grpquota 0 2
After the broken hard disk was removed, it was not auto mounted any more.
$ cat /proc/mdstat Personalities : md127 : inactive sdb(S) sda(S) 3906767024 blocks super 1.2 unused devices: <none>
this is what
dmesg says about it
[ 473.500360] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
[ 473.502334] XFS (md127): SB validate failed with error 5.
and mounting it fails
$ mount -t xfs /dev/md127 /mnt/data mount: /dev/md127: can't read superblock