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physics21 |
Posted: Jul 8 2016, 09:29 PM
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SLF Newbie Group: Members Posts: 3 Member No.: 3720 Joined: 27-June 16 ![]() |
I had installed a raid on scientific linux a few weeks ago. Today all of a sudden the hard drives no longer appear with df -h.
Now I am trying to rereate them using: mdadm --create /dev/md0 --level=raid1 --raid-devices=2 /dev/sdb1 /dev/sdc1 but when I run it I get: mdadm: cannot open /dev/sdb1: Device or resource busy It is not being used by anything so I thought it was maybe dmraid but I removed it and still nothing changed. Do you need to update something after removing dmraid? Thanks for any help I greatly appreciate it! |
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tux99 |
Posted: Jul 9 2016, 03:35 PM
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![]() SLF Moderator ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Moderators Posts: 1278 Member No.: 224 Joined: 28-May 11 ![]() |
what does the output of cat /proc/mdstat look like? Any sign of /dev/sdb1 there?
And what about the output of mount|grep /dev/sdb1 ? This post has been edited by tux99: Jul 9 2016, 03:36 PM -------------------- My personal SL6 repository, specialized in audio/video software: http://pkgrepo.linuxtech.net/el6/
(can be used together with EPEL and ELRepo repositories) - repository mirror: http://linuxsoft.cern.ch/linuxtech/el6/ |
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physics21 |
Posted: Jul 11 2016, 04:40 PM
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SLF Newbie Group: Members Posts: 3 Member No.: 3720 Joined: 27-June 16 ![]() |
Here is what I get when I do cat /proc/mdstat: Personalities : [raid1] md0 : active raid1 sdc1[1] sdb1[0] 1953380928 blocks super 1.2 [2/2] [UU] bitmap: 0/15 pages [0KB], 65536KB chunk When I do mount|grep /dev/sdb1 I get nothing. |
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Bluejay |
Posted: Jul 11 2016, 05:15 PM
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![]() SLF Member ![]() ![]() ![]() Group: Members Posts: 62 Member No.: 42 Joined: 13-April 11 ![]() |
Which indicates that /dev/sdb1 is in a RAID 1 (mirror) set with /dev/sdc1. What is the expected configuration? |
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ralf |
Posted: Jul 16 2016, 08:18 PM
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SLF Newbie Group: Members Posts: 1 Member No.: 3727 Joined: 16-July 16 ![]() |
Hi,
If you run SL6.8: this type of incident might have been described and addressed with updates TUV published July 13th. I remember the changelog in autofs (for example: fix handle_mounts() termination condition check) Cheers, Ralf |
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