[OmniOS-discuss] Multiple faulty SSD's ?

[Schweiss, Chip]

I don't have a lot of experience with the 850 Pro, but a lot with the 840
Pro under OmniOS

With 4K block size set in sd.conf and slicing them to only use 80% of their
capacity a pool of 72 of them has been under near constant heavy read/write
workload for over 3 years without a single chksum error.

-Chip

On Tue, Jul 26, 2016 at 1:30 PM, Piotr Jasiukajtis <estibi at me.com> wrote:

> I don’t know a root cause, but it’s better to have a workaround than a
> corrupted pools.
>
> --
> Piotr Jasiukajtis
>
> > On 26 Jul 2016, at 20:06, Dan McDonald <danmcd at omniti.com> wrote:
> >
> > I wonder if those sd.conf changes should be upstreamed or not?
> >
> > Dan
> >
> > Sent from my iPhone (typos, autocorrect, and all)
> >
> >> On Jul 26, 2016, at 1:28 PM, Piotr Jasiukajtis <estibi at me.com> wrote:
> >>
> >> You may want to force the driver to use 4k instead of 512b for those
> drivers and create a new pool:
> >>
> >>
> https://github.com/joyent/smartos-live/commit/dd25937d2f9725def16f5e8dbb16a8bcbc2213d5
> >>
> >> --
> >> Piotr Jasiukajtis
> >>
> >>> On 26 Jul 2016, at 02:24, Shaun McGuane <shaun at rackcentral.com> 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
> >>> _______________________________________________
> >>> OmniOS-discuss mailing list
> >>> OmniOS-discuss at lists.omniti.com
> >>> http://lists.omniti.com/mailman/listinfo/omnios-discuss
> >>
> >> _______________________________________________
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>
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