Hi all, I've been following this tutorial to realize my setup: http://www.sebastien-han.fr/blog/2014/08/25/ceph-mix-sata-and-ssd-within-the-same-box/
I got this CRUSH map from my test lab: http://paste.openstack.org/show/203887/ then I modified the map and uploaded it. This is the final version: http://paste.openstack.org/show/203888/ When applied the new CRUSH map, after some rebalancing, I get this health status: [-> avalon1 root@controller001 Ceph <-] # ceph -s cluster af09420b-4032-415e-93fc-6b60e9db064e health HEALTH_WARN crush map has legacy tunables; mon.controller001 low disk space; clock skew detected on mon.controller002 monmap e1: 3 mons at {controller001= 10.235.24.127:6789/0,controller002=10.235.24.128:6789/0,controller003=10.235.24.129:6789/0}, election epoch 314, quorum 0,1,2 controller001,controller002,controller003 osdmap e3092: 4 osds: 4 up, 4 in pgmap v785873: 576 pgs, 6 pools, 71548 MB data, 18095 objects 8842 MB used, 271 GB / 279 GB avail 576 active+clean and this osd tree: [-> avalon1 root@controller001 Ceph <-] # ceph osd tree # id weight type name up/down reweight -8 2 root sed -5 1 host ceph001-sed 2 1 osd.2 up 1 -7 1 host ceph002-sed 3 1 osd.3 up 1 -1 2 root default -4 1 host ceph001-sata 0 1 osd.0 up 1 -6 1 host ceph002-sata 1 1 osd.1 up 1 which seems not a bad situation. The problem rise when I try to create a new pool, the command "ceph osd pool create sed 128 128" gets stuck. It never ends. And I noticed that my Cinder installation is not able to create volumes anymore. I've been looking in the logs for errors and found nothing. Any hint about how to proceed to restore my ceph cluster? Is there something wrong with the steps I take to update the CRUSH map? Is the problem related to Emperor? Regards, Giuseppe 2015-04-13 18:26 GMT+02:00 Giuseppe Civitella <giuseppe.civite...@gmail.com> : > Hi all, > > I've got a Ceph cluster which serves volumes to a Cinder installation. It > runs Emperor. > I'd like to be able to replace some of the disks with OPAL disks and > create a new pool which uses exclusively the latter kind of disk. I'd like > to have a "traditional" pool and a "secure" one coexisting on the same ceph > host. I'd then use Cinder multi backend feature to serve them. > My question is: how is it possible to realize such a setup? How can I bind > a pool to certain OSDs? > > Thanks > Giuseppe >
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