| To: | Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: RAID6 r-m-w, op-journaled fs, SSDs |
| From: | Emmanuel Florac <eflorac@xxxxxxxxxxxxxx> |
| Date: | Sun, 1 May 2011 11:14:26 +0200 |
| Cc: | xfs@xxxxxxxxxxx, Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> |
| In-reply-to: | <201104302350.32287@xxxxxx> |
| Organization: | Intellique |
| References: | <19900.10868.583555.849181@xxxxxxxxxxxxxxxxxx> <20110430180213.6dcfc41c@xxxxxxxxxxxxxxx> <4DBC68DA.1090708@xxxxxxxxxxxxxxxxx> <201104302350.32287@xxxxxx> |
Le Sat, 30 Apr 2011 23:50:31 +0200 vous écriviez:
> Just for documentation if someone sees slow I/O on Areca. More
> spindles rock. That server had 8x 10krpm WD Raptor 150G drives by the
> time.
As a side note, VMs typically creates lots of random small IOs, and
perform quite poorly on RAID-6 arrays.
--
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Emmanuel Florac | Direction technique
| Intellique
| <eflorac@xxxxxxxxxxxxxx>
| +33 1 78 94 84 02
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