+1 to that. I've been seeing 4-6 MB/s for 4K writes for 1 OSD with 1 SSD
for journal and another for data [1]. Interestingly I did see some nice
scaling with 4K random reads: 2-4 MB/s per thread for up to 8 threads
(looked like it plateaued thereafter).
Cheers
Mark
[1] FYI not on the box I posted about before - on a more modern pc with
6Bbit/s SATA.
On 28/08/12 14:18, Mark Nelson wrote:
5) rados bench tests with smaller requests could be interesting on 15k
drives. I typically see about 1-2MB/s per OSD for 4k requests with
7200rpm SATA disks.
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