Re: [ceph-users] capacity planing with SSD Cache Pool Tiering

2015-05-06 Thread Götz Reinicke - IT Koordinator
; *Sent:* 05 May 2015 10:25 > *To:* ceph-users@lists.ceph.com; goetz.reini...@filmakademie.de > *Subject:* Re: [ceph-users] capacity planing with SSD Cache Pool Tiering > > > > Hi, > > The cache doesn't give you any additional storage capacity as the cache > can

Re: [ceph-users] capacity planing with SSD Cache Pool Tiering

2015-05-05 Thread Marc
Hi, The cache doesn't give you any additional storage capacity as the cache can never store data, thats not on the tier below it (or store more writes than the underlying storage has room for). As for how much you should go for... thats very much up to your use case. Try to come up with an e