Re: PG is stuck in repmapped and degraded

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> > Hi,all
> >  we use openstack + ceph(hammer) in my production
> 
> Hammer is soooooo 2015.
> 
> > There are 22 osds on a host and 11 osds share one ssd for osd journal.
> 
> I can’t imagine a scenario in which this strategy makes sense, the documentation and books are quite clear on why this is a bad idea.  Assuming that your OSDs are HDD and the journal devices are SATA SSD, the journals are going to be a bottleneck, and you’re going to wear through them quickly.  If you have a read-mostly workload, colocating them would be safer.

Hi,Anthony
   Thanks for you reply,Yes,we use sata ssd.
   where is the documentation or website of recommendation.
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