Cisco Cisco Expressway
"Expressway database failure: Please contact your Cisco support representative"
The support representative will help you work through the following steps:
1.
Take a system snapshot and provide it to your support representative.
2.
Remove the Expressway from the cluster using:
.
3.
Restore that Expressway’s database by restoring a backup taken on that Expressway previously.
4.
A second method is possible if the database does not recover:
1.
Take a system snapshot and provide to TAC.
2.
Remove the Expressway from the cluster using:
.
3.
Log in as root and run
clusterdb_destroy_and_purge_data.sh
4.
Restore that Expressway’s database by restoring a backup taken on that Expressway previously.
5.
Note
:
clusterdb_destroy_and_purge_data.sh
is as dangerous as it sounds – only use this command in conjunction with
instructions from your support representative.
Cluster With Advanced Networking is Not Replicating Correctly
Expressway-Es with Advanced Networking are only designed to replicate through their LAN 1 interface. Ensure that the
Peer x IP Address entries specified in System > Clustering all refer to LAN 1 interfaces.
Peer x IP Address entries specified in System > Clustering all refer to LAN 1 interfaces.
Also, this replicating interface (LAN 1) must not have NAT enabled on it.
Cluster With Static NAT is Not Replicating Correctly
When using Expressway-Es with static NAT, the cluster replication must occur on the LAN interface which is not behind
the NAT device. Therefore LAN interface 1 must be the non-NAT interface and the Peer x IP Address entries specified in
System > Clustering must all refer to LAN 1 interfaces. LAN interface 2 must be configured for static NAT.
the NAT device. Therefore LAN interface 1 must be the non-NAT interface and the Peer x IP Address entries specified in
System > Clustering must all refer to LAN 1 interfaces. LAN interface 2 must be configured for static NAT.
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Cisco Expressway Cluster Creation and Maintenance Deployment Guide