Forum Discussion

Manish_Bhatia's avatar
Manish_Bhatia
Level 4
10 years ago

Heartbeat requirement for VCS cluster

Hi All, I need an answer for the heartbeat requirement for vcs cluster for master server. I have 2 node global cluster for nbu master server (RHEL 6.5) and ops center server (windows 2008/2012)...
business continuity
Cluster Server
Linux
Managing Backup Devices
  • mikebounds's avatar
    mikebounds
    10 years ago

    If you have a 2 1-node clusters configured together in GCO, then you don't need any LLT heartbeats as you only have 1 node in each cluster so you configure a one node cluster (set ONENODE=YES in /etc/sysconfig/vcs) which means LLT heartbeats will not be used.

    Between your clusters you need global cluster heartbeats:

    1) You need one global heartbeat and if you only have one node in each cluster I think you can technically use the system IP, but I would recommend a dedicated IP.

    2) The global eartbeat IP can be on virtual interface so you don't need an additional NIC and I would recommended you put this on a bonded interface for redundancy

    3) Co-ordination disk or CP server are optional and have nothing to do with Global (or LLT) heartbeats

    4) All of the above is the same for VCS on Windows and VCS on Linux/UNIX

    Mike