If nothing else I hopefully got the point across as to how destructive parity RAID read-modify-write operations are to performance. It's simply impossible to get good mixed IO performance from parity RAID unless one's workloads always fit in controller write cache, or if one has SSD storage.
---- Will have to reread it a few times to digest everything (but it is sufficiently depressing...)... Especially the costs on the enclosures...I am pretty sure I paid under 1k for each of them....*ouch*... _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
