On 2017-07-18 02:29 PM, Lentes, Bernd wrote: > >>> >>> On SLES 11 SP4 HAE DRBD 8.4 is available. Do i need a cluster fs on top of a >>> dual primary DRBD ? >>> I assume. >>> >>> >>> Bernd >> >> Depends. >> >> If you want to have a shared FS, yes. If you want to back VMs though, we >> use clustered LVM to manage the DRBD space, creating per-VM LVs, and >> then use the resource manager to manage the servers. This keeps the LVM >> data in sync and avoids the cost of cluster locking. >> > > Hi Digimer, > > just to be clear: we have already cLVM because i'd like to store the vm's in > plain logical volumes, without fs. > That's running already. If i want live migration of vm's which resides on the > plain logical volumes in conjunction with DRBD > (DRBD on top of the lv ?) i don't need a cluster fs ? > > Thanks for the clarification. > > > Bernd
If you have DRBD (PV) -> Clustered VG -> LV per VM, and you have dual-primary DRBD, you can already do a live migration. -- Digimer Papers and Projects: https://alteeve.com/w/ "I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops." - Stephen Jay Gould _______________________________________________ Users mailing list: Users@clusterlabs.org http://lists.clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org