Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 17 Oct 2016 6:11 pm, "Gandalf Corvotempesta" < gandalf.corvotempesta at gmail.com> wrote: > > Il 17 ott 2016 09:01, "Jan Schermer" <jan at schermer.cz> ha scritto: > > > > 3 storages, many more hypervisors, data triplicated... that's the usual scenario > > Are you using drbd9 with a 3 nodes replication? > could you please share the drbd config? > > > We use ZFS on the storages, ZVOLs on top of that, each ZVOL makes up part of the DRBD resource that gets exported to the hypervisor. > > No raid volumes? > are you creating a single drbd resource for each storage disk? (In example, in a server with 12 disks are you creating 12 drbd resources?) > > i would like to create a raidz2 on each node but the resulting volume is not seen as block device thus can't be used as drbd resource > And thats why you create zvol then and use it as backing device for the drbd device. How many zvols/drbds you create depends on the raidz2 size and your needs. Each zvol backed drbd is then given to the hypervisor to be used as vm volume. > I can create a raid6 with mdadm, use that volume for drbd and put zfs on top of it but there are too many moving parts stacked together, that would be a perfect reciepe for a huge mess > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20161017/40b4d02a/attachment.htm>