[OpenIndiana-discuss] 6 GB SATA drives on SAS HBAs (was: bad WD drives)

[Rich]

The SSDs in question worked fine throughout, but I admit to not having
fully propagated multiple backplanes with expanders full of SATA 3
SSDs.

I mentioned my experiences WRT drives that are 4k sectors with 512b
emulation behaving much better with ashift=12 prior, and I also cite
the standard [1][2] posts by gdamore regarding SAS expanders
misbehaving when drive resets are triggered.

- Rich

[1] - http://gdamore.blogspot.com/2010/08/why-sas-sata-is-not-such-great-idea.html
[2] - http://gdamore.blogspot.com/2010/12/update-on-sata-expanders.html

On Tue, Aug 30, 2011 at 1:10 PM, Roy Sigurd Karlsbakk <roy at karlsbakk.net> wrote:
>> Not only that, but I've found that the Seagate ST3500413AS (500 GB
>> SATA 6Gb/s) won't work on my Intel SASUC8I HBA (basically an LSI
>> SAS3081E-R, which uses the mpt driver). It'll work just fine on an
>> AHCI port, but apparently the HBA can't successfully autonegotiate
>> the 3 Gb speed.
>
> Did they work somewhat at first and then fail later, or did they just not work at all? In my scenario, the drives worked ok for some time, but failed en masse during high load, always one backplane failing, even after one or two of them was replaced. The errors I got was h/w and trn errors, mostly "No Device".
>
>
> Vennlige hilsener / Best regards
>
> roy
> --
> Roy Sigurd Karlsbakk
> (+47) 97542685
> roy at karlsbakk.net
> http://blogg.karlsbakk.net/
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