On Thu, 20 Jun 2013, Da Chun wrote:
> Hi List,
> According to the doc, the journal partition is not recommended to be on the
> same disk as the osd. Should I put it in a separate one? But the total
> journal size is not big, 2 or 4g is enough for gigabyte network. It's
> a tremendous waste to put it on a separate disk.
>
> If we have SSD, it will be simple enough, just put all journal partitions on
> it.
> But without SSD, where to put the journal partitions so that there is no
> waste of disk and meanwhile the cluster performance can be maximized?
>
> Thanks for your time!
If you do not have extra disks, simply putting the journal on a separate
partition on teh same disk works well. This is what ceph-deploy osd
create HOST:DEV does by default.
sage
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