Thecus N16000 Series User Manual page 49

Conditions in which the standby server will take over for the active server:
1. Active server RAID is damaged
2. Loss of the active server's data port connection
3. Loss of heartbeat connection
4. Active server goes down for any other reason
When the active server encounters the above-mentioned situations, the standby
server (HA2) will immediately take over for the active server. The standby server's
system log will show "HA changed to active, getting resources", and "Healthy: The
RAID [HA] on system [HA2] is healthy now."
At this time, the virtual IP address will be mapped to the HA2 system because it is
in an active state.
WARNING
on - enable automatic failbacks
off - disable automatic failback
If there are transfers in progress when the
active server encounters problems and the
passive server becomes active, the session
will be stopped. Please contact your network
administrator to determine whether or not
your transfers were completed.
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