Copyright © 2002 - 2014 KEMP Technologies, Inc. All Rights Reserved. Page 17 / 37
High Availability (HA)
Feature Description
6
How to Perform a Firmware Update on HA Pairs
KEMP recommends that firmware updates are performed outside of working hours. This is to
ensure there is no interruption to client connectivity. If it has to be done during working hours
we suggest that a window of maintenance is put in place.
Before updating the firmware, ensure that the
Switch to Preferred Server
drop-down list is set to
No Preferred Host
in
System Configuration >
Miscellaneous Options > HA Parameters
.
To update the firmware on a HA pair; perform the following steps via the shared IP address:
1.
Update the currently active LoadMaster (“A”).
2.
When the update is complete, reboot A so that the passive unit becomes active.
3.
When the first unit is back up, update the other unit.
4.
When the update is complete, reboot other unit.
Now A should be active as it originally was.
