On Tue, 5 Feb 2008, Keld Jørn Simonsen wrote:
On Tue, Feb 05, 2008 at 05:28:27PM -0500, Justin Piszcz wrote:
Could you give some figures?
I remember testing with bonnie++ and raid10 was about half the speed
(200-265 MiB/s) as RAID5 (400-420 MiB/s) for sequential output, but input
was closer to RAID5 speeds/did not seem affected (~550MiB/s).
Impressive. What levet of raid10 was involved? and what type of
Like I said, it was baseline testing, so pretty much the default raid10
when you create it via mdadm, I did not mess with offsets, etc.
equipment, how many disks?
Ten 10,000rpm raptors.
Maybe the better output for raid5 could be
due to some striping - AFAIK raid5 will be striping quite well, and
writes almost equal to reading time indicates that the writes are
striping too.
best regards
keld
