Hello All, I am using Ceph as my storage back end and would like to know how to configure the system datastore, such that I can live migrate vms.
Following the directions, I thought I could create a datastore, format it, and mount it at /var/lib/one/datastores/0 , however, I discovered, that isn't quite how things work. >> http://lists.ceph.com/pipermail/ceph-users-ceph.com/2013-May/001913.html You can read more about that at the above link, but long story short, to mount a shared filesystem it has to be a "clustered" filesystem (I think CephFS is the "clustered filesystem", in this case). I attempted to modify my system datastore config, however, I was unable to change the DS_MAD parameter, and vm creation errors out telling me there's no /var/lib/one/remotes/tm/ceph/mkswap driver (there isn't) >> oneadmin@red6:~$ onedatastore show 0 >> DATASTORE 0 INFORMATION >> ID : 0 >> NAME : system >> USER : oneadmin >> GROUP : oneadmin >> CLUSTER : - >> TYPE : SYSTEM >> DS_MAD : - >> TM_MAD : ceph >> BASE PATH : /var/lib/one/datastores/0 >> DISK_TYPE : FILE >> >> PERMISSIONS >> OWNER : um- >> GROUP : u-- >> OTHER : --- >> >> DATASTORE TEMPLATE >> DISK_TYPE="rbd" >> DS_MAD="-" >> TM_MAD="ceph" >> TYPE="SYSTEM_DS" >> >> IMAGES Maybe I'm just confused. Can anyone provide some guidance on setting ceph up as the system datastore? Thanks, Jon A
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