Re: Hadoop/Ceph and DFS IO tests

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Hi,

On 07/11/13 12:23, ker can wrote:
Unfortunately I currently do not have access to SSDs, so I had a separate disk for the journal for each data disk for now.

you can try the RAM as a journal (well... not in production of course), if you want an idea of the performance on SSDs. I tried this once by creating journal files in a tmpfs and mapping them as loop devices (ceph-osd has a "flush-journal" option ;)).
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