Re: [ceph-users] CephFS metadata pool to SSDs

2017-10-13 Thread Reed Dier
As always, appreciate the help and knowledge of the collective ML mind. > If you aren't using DC SSDs and this is prod, then I wouldn't recommend > moving towards this model. These are Samsung SM863a’s and Micron 5100 MAXs, all roughly 6-12 months old, with the most worn drive showing 23 P/E c

Re: [ceph-users] CephFS metadata pool to SSDs

2017-10-12 Thread David Turner
John covered everything better than I was going to, so I'll just remove that from my reply. If you aren't using DC SSDs and this is prod, then I wouldn't recommend moving towards this model. However you are correct on how to move the pool to the SSDs from the HDDs and based on how simple and quic

Re: [ceph-users] CephFS metadata pool to SSDs

2017-10-12 Thread John Spray
On Thu, Oct 12, 2017 at 9:34 PM, Reed Dier wrote: > I found an older ML entry from 2015 and not much else, mostly detailing the > doing performance testing to dispel poor performance numbers presented by > OP. > > Currently have the metadata pool on my slow 24 HDDs, and am curious if I > should se

[ceph-users] CephFS metadata pool to SSDs

2017-10-12 Thread Reed Dier
I found an older ML entry from 2015 and not much else, mostly detailing the doing performance testing to dispel poor performance numbers presented by OP. Currently have the metadata pool on my slow 24 HDDs, and am curious if I should see any increased performance with CephFS by moving the metada