Replacing faulty memory for Cisco ASA-5520

In one of my older blog posts I wrote about one of my ASA firewalls, which is stuck during the boot process. See here for the older blog post: Cisco ASA5520 stuck at Booting system, please wait…

Now the replacement memory arrived and I replaced the faulty one.

Cisco ASA-5520 recplacing faulty memory
Cisco ASA-5520 recplacing faulty memory

After verifying the boot process with a console connection I saw the ASA-5520 came up with 2048 Mbyte RAM. However I’m going to verify the secondary with the show memory command.

    xxxxxxxxxx-asa# sh mem
    Free memory:        1618076032 bytes (75%)
    Used memory:         529407616 bytes (25%)
    -------------     ------------------
    Total memory:       2147483648 bytes (100%)
show memory command on ASA-5520

On the second ASA 5520 I verify the memory with the failover exec mate show memory command:

    xxxxxxxxxx-asa# failover exec mate sh mem
    Free memory:        1582448384 bytes (74%)
    Used memory:         565035264 bytes (26%)
    -------------     ------------------
    Total memory:       2147483648 bytes (100%)
show memory command on ASA-5520 mate

Last but not least I verify the failover status with the show failover command:

    xxxxxxxxxx-asa# sh failover
    Failover On
    Failover unit Secondary
    Failover LAN Interface: failover GigabitEthernet0/3 (up)
    Unit Poll frequency 1 seconds, holdtime 15 seconds
    Interface Poll frequency 5 seconds, holdtime 25 seconds
    Interface Policy 1
    Monitored Interfaces 2 of 160 maximum
    Version: Ours n.n(n)n, Mate n.n(n)n
      Last Failover at: 17:48:52 UTC Oct 26 2019
          This host: Secondary - Active
                  Active time: 485 (sec)
                    slot 0: ASA5520 hw/sw rev (n.n/n.n(n)nn) status (Up Sys)
                      Interface outside (nnn.nnn.nnn.nnn): Normal (Waiting)
                      Interface inside (nnn.nnn.nnn.nnn): Normal (Waiting)
                      Interface management (nnn.nnn.nnn.nnn): Normal (Not-Monitored)
                    slot 1: empty
          Other host: Primary - Standby Ready
                  Active time: 216081 (sec)
                    slot 0: ASA5520 hw/sw rev (n.n/n.n(n)nn) status (Up Sys)
                      Interface outside (0.0.0.0): Normal (Waiting)
                      Interface inside (0.0.0.0): Normal (Waiting)
                      Interface management (0.0.0.0): Normal (Not-Monitored)
                    slot 1: empty
show failover command on ASA-5520

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