Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Apologies in advance if this is too off-topic for this forum, feel free to reply directly & point to other resources. I'm having good success with DRBD in the following configuration: Two identical hosts, dual-bonded ethernet for DRBD with a dedicated VLAN on my smart swtich. I'm running DRBD on top of LVM, each device is the backing storage for a KVM virtual guest. The top-down diagram is: [/dev/sda1] Guest root system [ /dev/sda ] [ /dev/drbdN ] <--- primary/secondary mode [ /dev/mapper/vg-lvN ] [ lvm physical volume ] This works perfectly, but guest migration requires a shutdown: 1. Shut down guest on host 0 2. Demote DRBD primary to secondary on host 0 3. Promote DRBD secondary to primary on host 1 4. Start guest on host 1 Apparently running GFS with DRBD's dual-primary mode would allow KVM migration from one host to another without a shutdown, but all the tutorials jump straight into cluster configuration. Is converting my hosts into a cluster really the next step? Of course the point of KVM migration is to get to automatic failover. TIA, PM -- Paul Mackinney Systems & Quality Manager O.N. Diagnostics, LLC 2150 Shattuck Ave. Suite 610, Berkeley, CA 94704 510-204-0688 (phone) | 510-356-4349 (fax) _____________________________________________ If you receive this message in error, please delete it immediately. This message may contain information that is privileged, confidential and exempt from disclosure and dissemination under applicable law. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20150303/4cdf1f66/attachment.htm>