On Thu, Aug 23, 2007 at 09:09:00AM -0400, Merlin Moncure wrote:
> I'm testing the new asynch commit feature on various raid
> configurations and my early findings is that it reduces the impact of
> keeping wal and data on the same volume. I have 10 disks to play
> with, and am finding that it's faster to do a 10 drive raid 10 rather
> than 8 drive raid 10 + two drive wal.
>
> anybody curious about the results, feel free to drop a line. I think
> this will be a popular feature.
With or without a write cache on the RAID controller? I suspect that for
many systems, a write-caching controller will be very similar in
performance to async commit.
--
Decibel!, aka Jim Nasby decibel@decibel.org
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)