For ACS we are using XS 6.0.2+hotfixes. For the “old cloud” where management servers reside in a form of XEN PV machines we are using RHEL. OCFS2 is not needed when virtual machine uses DRBD device directly. We have one DRBD device per each VM.
Regards, F. On 09 Oct 2014, at 16:13, benoit lair <[email protected]> wrote: > Hello, > > Ok, bu i would like to have a separated mysql db server and mgmt servers. > Are you using KVM or xenserver ? > With your active/active drbd cluster, are you using ocfs2 ? > > 2014-10-08 12:34 GMT+02:00 France <[email protected]>: > >> Put the ACS java app in the same server and it will always get working >> mysql server when it is working. >> Also I suggest you start using pacemaker, corosync or cman. >> >> My management server is actually a virtual instance on RHEL active/active >> drbd cluster (so live migration works). >> >> If you want to test how it behaves, stop mysql and check for yourself. I >> highly doubt anyone has tested it yet. >> >> Regards, >> F. >> >> On 08 Oct 2014, at 11:37, benoit lair <[email protected]> wrote: >> >>> Hello Folks, >>> >>> >>> I'm trying new HA implementation of my mgmt server. >>> >>> I'm looking for HA for the mysql server. >>> >>> Could it be problematic if i install a drbd active/passive mysql cluster >> ? >>> (drbd & heartbeat) >>> >>> The reason is because if i a have a fail of my primary server (and so the >>> cluster doing a failover and transmiting its VIP (heartbeat) to the other >>> node), the mysql server doesn't respond during few seconds (due to the >>> deadtime parameter). >>> >>> So is this scenario problematic for the integrity of the management >> server ? >>> >>> >>> Thanks for your responses. >> >>
