Re: [ceph-users] Reliable OSD

2015-03-17 Thread Nick Fisk
h-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Don Doerner Sent: 17 March 2015 17:08 To: Ceph-users Subject: [ceph-users] Reliable OSD Situation: I need to use EC pools (for the economics/power/cooling) for the storage of data, but my use case requires a block device.  Ergo, I requ

[ceph-users] Reliable OSD

2015-03-17 Thread Don Doerner
Situation: I need to use EC pools (for the economics/power/cooling) for the storage of data, but my use case requires a block device. Ergo, I require a cache tier. I have tried using a 3x replicated pool as a cache tier - the throughput was poor, mostly due to latency, mostly due to device sat