On Thu Apr 04, 2013 at 10:13:05 +0200, Maik Zumstrull wrote:
> Hello Linux RAID and ATA people,
>
> I've managed to find a configuration on my home desktop where a
> particular RAID array is barely usable.
>
> You can find my initial report at:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=700975
>
> In summary:
>
> - I create an array across four disks on a Marvell AHCI controller,
> which automatically goes into rebuild mode.
> - Somebody (e.g. smartd or udisks2 or me, testing) sends a SMART
> command to one of the disks.
> - The SMART command fails.
> - The ATA subsystems freaks out all over the place, until eventually
> none of the disks on that controller are responsive.
> - The array is dead until reboot. (Curiously, without data loss so
> far. Kudos on the RAID code, I guess.)
>
> I've found the issue to be highly reproducible so far. Things mostly
> work if the array is not under heavy load (not rebuilding, no big file
> copies going on) or I make completely sure nothing sends SMART
> commands. I currently do keep real files on that array, but backed-up
> ones, so I could wipe it for more tests if really necessary.
>
I used to have the same issues on one of my machines. The solution was
to buy a decent SAS/SATA HBA (I went with the Intel RS2WC080, but see
http://blog.zorinaq.com/?e=10 for a more complete list), which now works
perfectly with exactly the same drives as before.
HTH,
Robin
--
___
( ' } | Robin Hill <robin@robinhill.me.uk> |
/ / ) | Little Jim says .... |
// !! | "He fallen in de water !!" |
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