[OpenIndiana-discuss] zpool and HDD problems

[Jason Matthews]

Gary is right to suspect other issue. 

Is your cmos clock reporting the correct time? A battery failure could cause the loss of your disk controller setting which might lead you to believe your disks failed. 

J. 

Sent from my iPhone

> On Oct 4, 2015, at 3:27 PM, Rainer Heilke <rheilke at dragonhearth.com> wrote:
> 
> Greetings.
> I've recently had three hard drives fail in my server. One was the OS disk, so I just reinstalled. The other two, however, were each one-half of zpool mirrors. They are the problem disks.
> 
> Both have been replaced, but now I cannot seem to work with them. In format -e, they are giving errors, specifically:
>       1. c3d1 <drive type unknown>
>          /pci at 0,0/pci-ide at 11/ide at 0/cmdk at 1,0
> and,
>       7. c7d1 <drive type unknown>
>          /pci at 0,0/pci-ide at 14,1/ide at 0/cmdk at 1,0
> 
> There is also a third disk erroring out:
>       3. c5t9d1 <SS330055-         99JJXXK-0001 cyl 60797 alt 2 hd 255 sec 63>
>          /pci at 0,0/pci1002,5a17 at 3/pci1000,9240 at 0/sd at 9,1
> 
> I am suspecting c3d1 to be an old OS mirror, due to the low controller number.
> 
> When I select 1 or 7, I get a Segmentation fault, and get booted out of the format utility. (If I select 3, the format utility never comes back, freezing.) A zpool status shows:
> 
>  pool: Pool1
> state: ONLINE
> status: Some supported features are not enabled on the pool. The pool can
>        still be used, but some features are unavailable.
> action: Enable all features using 'zpool upgrade'. Once this is done,
>        the pool may no longer be accessible by software that does not support
>        the features. See zpool-features(5) for details.
>  scan: resilvered 2.78M in 0h0m with 0 errors on Tue Sep 16 14:11:00 2014
> config:
> 
>        NAME        STATE     READ WRITE CKSUM
>        Pool1       ONLINE       0     0     0
>          c5t8d1    ONLINE       0     0     0
> 
> errors: No known data errors
> 
>  pool: data
> 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: resilvered 36.1M in 0h17m with 738 errors on Thu Oct  1 18:17:43 2015
> config:
> 
>        NAME                     STATE     READ WRITE CKSUM
>        data                     DEGRADED 20.6K     0     0
>          mirror-0               DEGRADED 81.8K     0     0
>            7152018192933189428  FAULTED      0     0     0  was /dev/dsk/c11t8d1s0
>            c6d0                 ONLINE       0     0 81.8K
> 
> errors: 737 data errors, use '-v' for a list
> 
> (Doing a zpool status -v freezes the terminal.)
> 
> The system has three disks connected to an LSI MegaRAID SAS 9240-8i controller.
> 
> I am suspecting that disk 3 (c5t9d1) might be the detached mirror of Pool1 ( c5t8d1), but being unable to work with it, I cannot verify this. I have no idea on how to deal with the data mirror. Should I just detach /dev/dsk/c11t8d1s0 ( 7152018192933189428) and hope that c6d0 will be clean enough for a decent scrub? Or is /dev/dsk/c11t8d1s0 ( 7152018192933189428) the disk with the less corrupted data? Not being able to even get a listing (ls) of the data pool leaves me very hesitant.
> 
> Does anyone have any ideas on how to clean this up?
> 
> Thanks in advance,
> Rainer
> 
> -- 
> Put your makeup on and fix your hair up pretty,
> And meet me tonight in Atlantic  City
>            Bruce Springsteen
>            
> 
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