Dave Chinner put forth on 11/24/2010 11:46 PM: > Because writes for workloads like this are never full stripe writes. > Hence reads must be done to pullin the rest of the stripe before the > new parity can be calculated. This RMW cycle for small IOs has > always been the pain point for stripe based parity protection. If > you are doing lots of small IOs, RAID1 is your friend. Do you really mean RAID1 here Dave, or RAID10? If RAID1, please elaborate a bit. RAID1 traditionally has equal read performance to a single device, and half the write performance of a single device. -- Stan _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
