mrsas(4)

[Ultima]

Hello, I have experienced this twice within the last month. It was not with
this same controller, however it was not the controllers fault. Random
disks will drop and reattach. For me, this was power supply problem and
both times replacement fixed the issue.

If you haven't checked into the power supply. I would suggest testing it.
Especially If it was previously working fine.

On Fri, Jul 29, 2016 at 9:41 AM, Eugene M. Zheganin <emz at norma.perm.ru>
wrote:

> Hi.
>
> I'm experiencing some weird troubles with an LSI MegaRAID SAS9341-4i
> controller: sometimes, all of a sudden, it reports that disk was
> reattached. I'm using zfs, and a redundant pool, so, besides the fact that
> it's bad by itself, everything should continue to work, but instead my
> FreeBSD starts to livelock, and all disk/zfs commands stop working - they
> just hang (however, I'm able to log in, launch gstat and other utilities,
> and most of the services seem to be unaffected, however, iSCSI target
> starts to behave weirdly too). I wrote a letter to the LSI support, but I
> guess they will first ask me to try the latest driver, which for some
> reason isn't commited in the tree yet. So, two questions:
>
> - why the latest driver (6.710.11.00) isn't in the main tree, it's from
> december 2015, so at least it seems like it should have been made it to the
> 11.x. In 11.x I still see the 06.709.07.00-fbsd ? may be I don't unerstand
> something.
>
> - has anyone seen anything similar on mrsas ? I'm kinda open to the ideas.
> To be honest, I suspect the controller and the firmware, because with
> factory-default firmware version I had seen all sorts of madness, including
> disk detaching after requesting SMART data with smartmontools. This was
> reproducible and solved with the firmware update, but considering the
> amount of fixes that each new version does contain, I suppose there's many
> of the bugs that left unfixed.
>
>
> Thanks.
>
> Eugene.
>
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