I've got myself into a bit of a pickle.
I had a 3 node ceph cluster running for a good couple of years no problem. I'm now upgrading to 6, I was going to switch to ZFS but I have changed my mind though I could be open to persuasion. I was going to reduce my node count in the DC to reduce power. All VMs fit on one node. I broke my ceph cluster and installed 6.2 on a standalone node and migrated all VMs to it using backup and restore.
Shutting the two other boxes down seemed to save very little, in monetary terms about £100 a month which isn't significant enough to go ahead with the idea.
I've installed 6.2 now on the other two boxes and installed ceph too but its obviously in a degraded state.
Will it be OK to migrate everything back then just add the other node into the cluster afterwards. I'm thinking it will but I thought I would ask.
The ceph setup is 4x960GB samsung sm863a.
I could potentially stick with ZFS and use the new replication. The nodes are IBM x3650 M4 with two e5-2650 in each and 192GB RAM. I have a hardware raid card and hba in each, I use the hw raid for OS.
TIA
Daz
I had a 3 node ceph cluster running for a good couple of years no problem. I'm now upgrading to 6, I was going to switch to ZFS but I have changed my mind though I could be open to persuasion. I was going to reduce my node count in the DC to reduce power. All VMs fit on one node. I broke my ceph cluster and installed 6.2 on a standalone node and migrated all VMs to it using backup and restore.
Shutting the two other boxes down seemed to save very little, in monetary terms about £100 a month which isn't significant enough to go ahead with the idea.
I've installed 6.2 now on the other two boxes and installed ceph too but its obviously in a degraded state.
Will it be OK to migrate everything back then just add the other node into the cluster afterwards. I'm thinking it will but I thought I would ask.
The ceph setup is 4x960GB samsung sm863a.
I could potentially stick with ZFS and use the new replication. The nodes are IBM x3650 M4 with two e5-2650 in each and 192GB RAM. I have a hardware raid card and hba in each, I use the hw raid for OS.
TIA
Daz
