Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
ZFS doesn't recognize missing disk
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
nitro322
Guru
Guru


Joined: 24 Jul 2002
Posts: 562
Location: USA

PostPosted: Fri Oct 03, 2014 4:12 am    Post subject: ZFS doesn't recognize missing disk Reply with quote

I'm hoping someone can provide a little explanation about and guidance on this. I'm new to ZFS and an currently testing/evaluating a RAID-Z2 pool for a new home server I'm building. I've been very happy with it so far, but before I officially declare it good to go I want to verify that I can successfully recover from a failed disk.

So, I figure the most direct route would be to simply pull a disk and see how it responds. The result isn't what I expected. The system is still working, and I can still access my data (as I'd expect for a RAID-Z2), but when I check the status I get this:

Code:
#zpool status -v
  pool: data
 state: ONLINE
  scan: scrub repaired 0 in 0h2m with 0 errors on Tue Sep 30 23:09:32 2014
config:

        NAME                                          STATE     READ WRITE CKSUM
        data                                          ONLINE       0     0     0
          raidz2-0                                    ONLINE       0     0     0
            ata-WDC_WD60EFRX-68MYMN1_WD-WX11D4449388  ONLINE       0     0     0
            ata-WDC_WD60EFRX-68MYMN1_WD-WX11D741APC4  ONLINE       0     0     0
            ata-WDC_WD60EFRX-68MYMN1_WD-WX11D741AN90  ONLINE       0     0     0
            ata-WDC_WD60EFRX-68MYMN1_WD-WX11D741ALEH  ONLINE       0     0     0

errors: No known data errors


I have the disk with ID WX11D741APC4 sitting on my desk right now, yet ZFS seems to think everything available and working just fine. That's a little troublesome.

Anyone know why it's behaving like this? I'd really love a good explanation. Additionally, anyone know how to force ZFS to actually recognize that the disk is bad? I've verified that /dev/disk/by-id/ata-WDC_WD60EFRX-68MYMN1_WD-WX11D741APC4 (/dev/sdc) is indeed gone, so I really don't know how it can not realize that an entire disk has disappeared.

Any info/advice is appreciated. Thanks.
_________________
http://www.legroom.net/
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum