Re: RAID6 ext3 problems
From: Mark Knecht <hidden>
Date: 2012-02-12 20:52:25
On Sun, Feb 12, 2012 at 12:27 PM, Jeff W [off-list ref] wrote:
quoted
So what _actually_ happens when you issue the commands? Please post back the results of cat /proc/mdstatjeff@Shmee:~$ cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md1 : active raid6 sda[0] sdf1[1] sdg1[5] sde[4] sdd1[3] sdc1[2] 2441437440 blocks level 6, 64k chunk, algorithm 2 [7/6] [UUUUUU_] unused devices: <none>quoted
and mount /dev/mdWHATEVER /mountpointjeff@Shmee:~$ sudo mount /dev/md1 /mnt [sudo] password for jeff: mount: wrong fs type, bad option, bad superblock on /dev/md1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so jeff@Shmee:~$ dmesg | tail [48532.584428] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0) [49369.880015] [drm] nouveau 0000:01:00.0: Setting dpms mode 1 on vga encoder (output 0) [50470.240278] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0) [50522.284317] usb 2-6: USB disconnect, address 4 [52848.285524] [drm] nouveau 0000:01:00.0: Setting dpms mode 1 on vga encoder (output 0) [52940.534516] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0) [53540.724023] [drm] nouveau 0000:01:00.0: Setting dpms mode 1 on vga encoder (output 0) [54039.813485] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0) [58210.212241] EXT3-fs error (device md1): ext3_check_descriptors: Block bitmap for group 6016 not in group (block 277891307)! [58210.247230] EXT3-fs: group descriptors corrupted! Is that more helpful? Thanks! Jeff.
I think it will be to others. It's a bit above my pay grade unfortunately. Doing a quick Google of RAID ext3_check_descriptors turns up others having similar issues to yours (I think) with a few posts that look like solutions, or possible solutions. IMPORTANT: My first inclination was to suggest an fsck but one post I found made it sound like that hurt his RAID so read carefully before doing anything that might cause more hard. - Mark -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html