xfs_force_shutdown after Raid crash

[Christoph Hellwig]

On Fri, Jan 30, 2009 at 10:53:19PM +0100, Steffen Knauf wrote:
> Hello,
>
> after a raid crash (Raid Controller problem, 3 Disks of the Disk Group  
> were kicked out oft the diskgroup), 2 of 3 partitions (XFS FS) were  
> shutdown immediately.
> Perhaps somebody has a idea, what's the best solution (xfs_repair?).

This looks like you were running with a write back cache enabled on the
controller / disks but without barriers.  xfs_repair should be able
to repair the filesystem.  If you're lucky only the freespace-btrees
are corrupted (as in the trace below) as xfs_repair can rebuild them
from scratch.