One disk shows UNFORMATTED...what to do next ?


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Hi,

 

This is my first "real" problem with UNRAID. Today one data disk (disk 7) shows UNFORMATTED (green ball).

 

What to do next with no data loss ?

 

Thanks in advance !

 

Here is a part of the system log where it goes wrong.

 

 

Oct  9 22:35:28 Tower emhttp: shcmd (110): mkdir -p /mnt/disk7
Oct  9 22:35:28 Tower emhttp: shcmd (111): set -o pipefail ; mount -t reiserfs -o noatime,nodiratime /dev/md7 /mnt/disk7 |& logger
Oct  9 22:35:28 Tower kernel: REISERFS (device md7): found reiserfs format "3.6" with standard journal
Oct  9 22:35:28 Tower kernel: REISERFS (device md7): using ordered data mode
Oct  9 22:35:28 Tower kernel: reiserfs: using flush barriers
Oct  9 22:35:28 Tower kernel: REISERFS (device md7): journal params: device md7, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
Oct  9 22:35:28 Tower kernel: REISERFS (device md7): checking transaction log (md7)
Oct  9 22:35:28 Tower kernel: REISERFS (device md7): Using r5 hash to sort names
Oct  9 22:35:33 Tower kernel: REISERFS (device md7): Removing [258 259 0x0 SD]..
Oct  9 22:35:33 Tower kernel: REISERFS warning: reiserfs-5090 is_tree_node: node level 60526 does not match to the expected one 1
Oct  9 22:35:33 Tower kernel: REISERFS error (device md7): vs-5150 search_by_key: invalid format found in block 15878227. Fsck?
Oct  9 22:35:33 Tower kernel: REISERFS (device md7): Remounting filesystem read-only
Oct  9 22:35:33 Tower kernel: done
Oct  9 22:35:33 Tower logger: mount: warning: /mnt/disk7 seems to be mounted read-only.
Oct  9 22:35:33 Tower emhttp: shcmd (112): set -o pipefail ; mount -t reiserfs -o remount,user_xattr,acl,noatime,nodiratime /dev/md7 /mnt/disk7 |& logger
Oct  9 22:35:33 Tower logger: mount: /dev/md7: can't read superblock
Oct  9 22:35:33 Tower emhttp: shcmd: shcmd (112): exit status: 32
Oct  9 22:35:33 Tower emhttp: mount error: 32
Oct  9 22:35:33 Tower emhttp: shcmd (113): rmdir /mnt/disk7
Oct  9 22:35:33 Tower emhttp: shcmd: shcmd (113): exit status: 1

 

 

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Unformatted just means it cannot mount most likely file system corruption. Happened to be me a 2 months ago on a drive. A checkdsk will be in order. If on resierfs  http://lime-technology.com/wiki/index.php/Check_Disk_Filesystems  stop array, check maintenance mode and start. go to terminal on server or telnet in (preferably use screen) reiserfsck --check /dev/md# (1 for disk 1, 2 for disk 2 etc). it will report back what to do most likely it will want you to run it with --rebuild-tree afterwards. worked for me.

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