> Op 16 jul. 2014 om 16:58 heeft "Riccardo Murri" <[email protected]> het
> volgende geschreven:
>
> Hello,
>
> I am new to Ceph; the group I'm working in is currently evaluating it
> for our new large-scale storage.
>
> Is there any recommendation for the OSD journals? E.g., does it make
> sense to keep them on SSDs?
Yes, that is what is usually done.
> Would it make sense to host the journal
> on a RAID-1 array for added safety?
No, since both SSDs will wear out at the same pace. Better to spread out the
OSDs over two journals.
> (IOW: what happens if the journal
> device fails and the journal is lost?)
That OSD has to be considered as lost then. Let recovery take over and replace
the OSD.
Wido
> Thanks for any explanation and suggestion!
>
> Riccardo
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