How to deal with XFS stripe geometry mismatch with hardware RAID5

[Brian Candler]

> So the conclusion is: do you actually care about performance for this
> application?  If you do, I'd say don't use RAID5.  If you absolutely must
> use parity RAID then go buy a Netapp ($$$) or experiment with btrfs (risky). 
> The cost of another 10 disks for a RAID10 array is going to be small in
> comparison.

Or you could switch to another database like couchdb which only appends to
its database and index files - it never goes back and overwrites existing
blocks.