How should I set up the heartbeat to avoid any HA STONITH possibilities?

For reliable operation of the HA heartbeat connection, auto-negotiation must be disabled for this NIC on both MDCs. Please add to following case-sensitive line to the NIC’s config script, for example /etc/sysconfig/network-scripts/ifcfg-eth2

ETHTOOL_OPTS="speed 1000 duplex full autoneg off"
Matthew Jensen
2017-02-02 16:41