[OmniOS-discuss] Multiple faulty SSD's ?

[Richard Skelton]

Hi Shaun,
I have seen something very similar on an Oracle X4-2
I added two 256MB Samsung 850 PRO and created a mirrored zpool
The system zpool was a mirror of two SAS Seagate 600GB which came withe
the system.
The system was running Solaris 10 with latest patches.
After a few hours I saw checksum errors on both disks.
Oracle told me they did not support the Samsung disks so I swapped them
for Intel DC S3500 which have been working fine for months.
The 850 PRO drives worked fine on a X4140 but this has a different raid
controller.
So I guess you need to be careful which SSD's you use with certain
controllers :-(

Shaun McGuane wrote:
>
> Hi List,
>
>  
>
> I want to report very strange SSD behaviour on a new pool I setup.
>
>  
>
> The hardware is a HP DL180 G6 Server with the LSI 9207-8i Card
>
> And 8x 1TB Samsung SSD Pro drives. Running omnios-10b9c79
>
>  
>
> All the drives are brand spanking new setup in a raidz2 array.
>
>  
>
> Within 2 months the below has happened and there has been very
>
> Little use on this array.
>
>  
>
>   pool: SSD-TANK
>
> state: DEGRADED
>
> status: One or more devices are faulted in response to persistent errors.
>
>         Sufficient replicas exist for the pool to continue functioning
> in a
>
>         degraded state.
>
> action: Replace the faulted device, or use 'zpool clear' to mark the
> device
>
>         repaired.
>
>   scan: scrub repaired 23K in 1h12m with 0 errors on Mon Jul 25
> 20:13:04 2016
>
> config:
>
>  
>
>         NAME                       STATE     READ WRITE CKSUM
>
>         SSD-TANK                   DEGRADED     1    67    35
>
>           raidz2-0                 DEGRADED     4    72   113
>
>             c5t500253884014D0D3d0  ONLINE       0     0     2
>
>             c5t50025388401F767Ad0  DEGRADED     0     0    19  too
> many errors
>
>             c5t50025388401F767Bd0  FAULTED      0     0     0  too
> many errors
>
>             c5t50025388401F767Dd0  ONLINE       0     0     0
>
>             c5t50025388401F767Fd0  ONLINE       0     0     1
>
>             c5t50025388401F7679d0  ONLINE       0     0     2
>
>             c5t50025388401F7680d0  REMOVED      0     0     0
>
>             c5t50025388401F7682d0  ONLINE       0     0     1
>
>  
>
> Can anyone suggest why I would have this problem where I am seeing
> CKSUM errors
>
> On most disks and while only one has faulted others have been degraded
> or removed.
>
>  
>
> Thanks
>
> Shaun
>
> ------------------------------------------------------------------------
>
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