drive dropped from RAID5 set after reboot

[Kristian Hermansen]

On 3/15/07, Tom Metro <blu at vl.com> wrote:
> On an Ubuntu Feisty system, I received notice of a degraded RAID array
> after rebooting today. Investigating showed:

There were huge changes to ATA from 2.6.15-2.6.20.  2.6.18 added
Native Command Queuing (NCQ for SATA).  I noticed that 2.6.18 reported
errors from hdparm -t /dev/md0 when I tried it on the new 2.6.18
kernel with my Adaptec card.  Dunno if this helps or not.  The new
sub-system is libata.  Is it even possible for any of this to effect
the software RAID array superblock?  I doubt it...
-- 
Kristian Hermansen

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