Hi, Yes, it's fine as long as the latency is reasonably low, and you have some form of fencing that can work if the link between them is lost.
sbd is a good choice for fencing if each node has a hardware watchdog. With two nodes, you really need a third site with either shared storage (for disk-based sbd) or qdevice (to give true quorum to diskless sbd). If you have redundant network paths between the data centers, you could use a traditional fence device instead (such as a smart power strip). You have to be careful to avoid single points of failure in this design (for example, if both cables run through the same conduit). On Thu, 2023-08-17 at 20:55 +0100, Adil Bouazzaoui wrote: > Hello, > > my name is adil, i got your email from Clusterlabs site. > i'm wondering if i can setup a cluster with Corosync/pacemaker for a > cross DC cluster? > > for example: > Node 1 (Master) in VLAN 1: 172.30.100.10 /24 > Node 2 (slave) in VLAN 2: 172.30.200.10 /24 > > Note: i deployed Centeron HA Cluster with Corosync/Pacemaker on same > VLAN and it's working fine. > my idea is to move Slave node on another site (VLAN 2). > > Thank you in advance > > > -- > > Adil Bouazzaoui -- Ken Gaillot <kgail...@redhat.com> _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
