41-7
Cisco Security Appliance Command Line Configuration Guide
OL-10088-01
Chapter 41 Managing Software, Licenses, and Configurations
Performing Zero Downtime Upgrades for Failover Pairs
Step 3 When the standby unit has finished reloading, and is in the Standby Ready state, force the active unit to
fail over to the standby unit by entering the following command on the active unit.
Note Use the show failover command to verify that the standby unit is in the Standby Ready state.
active# no failover active
Step 4 Reload the former active unit (now the new standby unit) by entering the following command:
newstandby# reload
Step 5 When the new standby unit has finished reloading, and is in the Standby Ready state, return the original
active unit to active status by entering the following command:
newstandby# failover active
Upgrading and Active/Active Failover Configuration
To upgrade two units in an Active/Active failover configuration, perform the following steps:
Step 1 Download the new software to both units, and specify the new image to load with the boot system
command (see the “Configuring the Application Image and ASDM Image to Boot” section on
page 41-5).
Step 2 Make both failover groups active on the primary unit by entering the following command in the system
execution space of the primary unit:
primary# failover active
Step 3 Reload the secondary unit to boot the new image by entering the following command in the system
execution space of the primary unit:
primary# failover reload-standby
Step 4 When the secondary unit has finished reloading, and both failover groups are in the Standby Ready state
on that unit, make both failover groups active on the secondary unit using the following command in the
system execution space of the primary unit:
Note Use the show failover command to verify that both failover groups are in the Standby Ready
state on the secondary unit.
primary# no failover active
Step 5 Make sure both failover groups are in the Standby Ready state on the primary unit, and then reload the
primary unit using the following command:
primary# reload
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