Re: Verify filesystem is aligned to stripes

Stan Hoeppner
2010-11-25T06:59:00Z

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