Upgrade ASA and ASDM Images in a High Availability Pair

Before you upgrade your pair of ASAs in active/standby failover mode, review the prerequisites below. If you need more information about how ASAs are configured and work in failover mode, see Failover for High Availability in the ASA documentation.

Want to see a demo? Watch a screencast of this procedure.

Prerequisites

  • Review ASA and ASDM Upgrade Prerequisites for requirements and important information about upgrading ASA and ASDM images.

  • The primary (active) and secondary (standby) ASAs are configured in active/standby failover mode.

  • The primary ASA is the active device in the active/standby pair. If the primary ASA is inactive, Security Cloud Control will not perform the upgrade.

  • The primary and secondary ASA software versions are the same.