D5-300C raid1 issue

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Joined: 15 Jan 2023, 16:46

D5-300C raid1 issue

Post by vdx » 15 Jan 2023, 16:57


I had to replace a disk in my D5-300C raid1 array. It worked with 1 disk for a while, but when I add a second disk (formatted as ext4 just like the other) it starts syncing (green + orange led flashing), but didn't finish after 7 days, so I turned it off to see what happened with the second disk and I cannot even mount it despite the fact that it was formatted before.

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mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sdc1, missing codepage or helper program, or other error.
       dmesg(1) may have more information after failed mount system call

Dmesg relevant output:

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[45292.935840] EXT4-fs error (device sdc1): ext4_find_extent:929: inode #8: comm mount: pblk 488144895 bad header/extent: extent tree corrupted - magic f30a, entries 8, max 340(340), depth 0(0)
[45293.018785] jbd2_journal_init_inode: Cannot locate journal superblock
[45293.025345] EXT4-fs (sdc1): Could not load journal inode
I reformatted the second disk, synced manually with rsync, used it for a while it looked fine, but when I try to put it back to the raid the same happens, syncing never finishes and the filesystem breaks on it.

Could you please help with how I should rebuild the raid1 mirror?


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