> Greetings :) > > I have a raid1 and raid5 array. The raid1 is for the OS and has no issues. > > The raid5 has been offline since a kernel panic and reboot. > > I see this in dmesg > > root@cephas:~# dmesg |grep sd6 > softraid0: trying to bring up sd6 degraded > softraid0: sd6 was not shutdown properly > softraid0: sd6 is offline, will not be brought online > > How do I bring this back online?
OK, I could bring it back online using: bioctl -C force -v -c 5 -l sd1a,sd2a,sd3a softraid0 I wouldn't have expected it to be the -c flag, because that says a "new" raid and I'm trying to enable a previously active raid. Anyway, the above command works. And I have no data loss. Then I had a single disk that was marked bad, which I put online again like so: If sd1a failed, like so: ``` softraid0 1 Degraded 4000797294592 sd6 RAID5 0 Offline 0 1:0.0 noencl <sd1a> 'unknown serial' 1 Online 2000398663680 1:1.0 noencl <sd2a> 'unknown serial' 2 Online 2000398663680 1:2.0 noencl <sd3a> 'unknown serial' ``` You can add it back to the RAID like so: `bioctl -C force -R /dev/sd1a sd6` ``` softraid0 1 Rebuild 4000797294592 sd6 RAID5 0% done 0 Rebuild 2000398663680 1:0.0 noencl <sd1a> 'unknown serial' 1 Online 2000398663680 1:1.0 noencl <sd2a> 'unknown serial' 2 Online 2000398663680 1:2.0 noencl <sd3a> 'unknown serial' ```