Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 10/11/2017 09:14 PM, Gandalf Corvotempesta wrote: > is "raid -> drbd -> lvm" a standard configuration or something bad? I > don't want to put in production something "custom" and not supported. While it is not "bad", it limits the system to an active-passive cluster configuration, because all logical volumes must be active on the same node. The standard setup that we teach in our trainings, that we commonly install and use ourselves and that all of our automated provisioning software uses is storage -> LVM -> DRBD, or storage -> ZFS -> DRBD, as this allows the configuration of multiple independent resources, where each resource can be active on any of the nodes, thereby also allowing the creation of active-active clusters. > How to prevent splitbrains ? Would be enough to bond the cluster > network ? Any qdevice or fencing to configure ? Fencing br, -- Robert Altnoeder +43 1 817 82 92 0 robert.altnoeder at linbit.com LINBIT | Keeping The Digital World Running DRBD - Corosync - Pacemaker f / t / in / g+ DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.