Disk shows as removed - can I replace it?

[townheadbluesboy]

Hi

Ignored my freenas box for too long and it's got in a mess

AME STATE READ WRITE CKSUM
BUNGUS DEGRADED 0 0 9.49K
raidz1-0 DEGRADED 0 0 19.8K
gptid/52bf68de-a1c0-11e1-960d-e83935209c7c DEGRADED 0 0 0 too many errors
gptid/5388b925-a1c0-11e1-960d-e83935209c7c DEGRADED 0 0 6.69K too many errors
5824313476295435111 REMOVED 0 0 0 was /dev/gptid/54553695-a1c0-
11e1-960d-e83935209c7c
gptid/551eb20f-a1c0-11e1-960d-e83935209c7c DEGRADED 0 0 0 too many errors

I can understand how to offline and replace the disks that are there. But ada 2 is showing as removed.

gptid/52bf68de-a1c0-11e1-960d-e83935209c7c N/A ada0p2
gptid/5388b925-a1c0-11e1-960d-e83935209c7c N/A ada1p2
gptid/551eb20f-a1c0-11e1-960d-e83935209c7c N/A ada3p2

How do I replace and resilver a disk that appears to have been removed?

This NAS has data on it.

I'm going to replace all the disks one at a time.

Cheers

Kevin

 

[BigDave]

Please post console and log data using

Code:

keeps format

tags to keep formatting, it will allow folks to make more sense of what is being offered
in your posts.
I strongly recommend you back up your data before attempting any drive replacement!!!!

How do I replace and resilver a disk that appears to have been removed?

The FreeNAS manual has steps outlined for this task. Keep in mind you never said which version of FreeNAS you are using so I have
given a link to the 9.10 doc
http://doc.freenas.org/9.10/storage.html#replacing-a-failed-drive[/CODE]

 

[townheadbluesboy]

Hi Thanks for such a quick reply

it's

FreeNAS-9.10.2-U1 (86c7ef5)

The thing I'm confused/worried about is the disk isn't listed in the GUI .
If I physically replace the failed one in the bay will it then recognise this needs to replace ada2? Or do I add a 'new' disk to the volume set?

Thanks again

 

[BigDave]

Or do I add a 'new' disk to the volume set?

No, No, No, do not use the volume manager!!!
Are you familiar with the use of the Secure Shell, better known as SSH?
If you are, please post in code tags the results of the command:
zpool status

 

[townheadbluesboy]

Code:

Last login: Sat Feb 18 14:40:44 2017 from 192.168.1.120
FreeBSD 10.3-STABLE (FreeNAS.amd64) #0 r295946+1805185(9.10.2-STABLE): Wed Jan 11 17:12:42 UTC 2017

        FreeNAS (c) 2009-2016, The FreeNAS Development Team
        All rights reserved.
        FreeNAS is released under the modified BSD license.

        For more information, documentation, help or support, go here:
        http://freenas.org
Welcome to Bungus
[root@bungus] ~# zpool status
  pool: BUNGUS
 state: DEGRADED
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: http://illumos.org/msg/ZFS-8000-8A
  scan: scrub repaired 28.1M in 9h6m with 9355 errors on Fri Feb 17 00:19:56 2017
config:

        NAME                                            STATE     READ WRITE CKSUM
        BUNGUS                                          DEGRADED     0     0 9.49K
          raidz1-0                                      DEGRADED     0     0 19.8K
            gptid/52bf68de-a1c0-11e1-960d-e83935209c7c  DEGRADED     0     0     0  too many errors
            gptid/5388b925-a1c0-11e1-960d-e83935209c7c  DEGRADED     0     0 6.69K  too many errors
            5824313476295435111                         REMOVED      0     0     0  was /dev/gptid/54553695-a1c0-11e1-960d-e8393
5209c7c
            gptid/551eb20f-a1c0-11e1-960d-e83935209c7c  DEGRADED     0     0     0  too many errors

errors: 9355 data errors, use '-v' for a list

  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0h6m with 0 errors on Tue Feb  7 03:51:21 2017
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          da0p2     ONLINE       0     0     0

errors: No known data errors
[root@bungus] ~# 

 

[Robert Trevellyan]

scrub repaired 28.1M in 9h6m with 9355 errors

I strongly recommend you back up your data before attempting any drive replacement!!!!

+1
You have no redundancy, and a lot of corruption. I suspect you will have to rebuild this pool in the end.

 

[townheadbluesboy]

ok thanks for your help - I'll try and get the critical data off and rebuild it

 

[townheadbluesboy]

what is the safe procedure for replacing a physical disk in a 4 disk pool?

 

[nojohnny101]

Check the manual for a step by step.