Cisco Cisco Email Security Appliance C160 Mode D'Emploi
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Cisco AsyncOS 8.5 for Email User Guide
Chapter 37 Centralized Management Using Clusters
Managing Clusters
Note
If you use the upgrade command before disconnecting the individual machine from the cluster, AsyncOS
disconnects all the machines in the cluster. Cisco Systems recommends that you disconnect each
machine from the cluster before upgrading it. Then, other machines can continue working as a cluster
until each is disconnected and upgraded.
disconnects all the machines in the cluster. Cisco Systems recommends that you disconnect each
machine from the cluster before upgrading it. Then, other machines can continue working as a cluster
until each is disconnected and upgraded.
Procedure
Step 1
On a machine in the cluster, use the
disconnect
operation of
clusterconfig
. For example, to disconnect
the machine
losangeles.example.com
, type
clusterconfig
disconnect
losangeles
.example.com
.
No
commit
is necessary.
Step 2
Optionally, use the
suspendlistener
command to halt acceptance of new connections and messages
during the upgrade process.
Step 3
Issue the
upgrade
command to upgrade AsyncOS to a newer version.
Note
Disregard any warnings or confirmation prompts about disconnecting all of the machines in the
cluster. Because you have disconnected the machine, AsyncOS does not disconnect the other
machines in the cluster at this point.
cluster. Because you have disconnected the machine, AsyncOS does not disconnect the other
machines in the cluster at this point.
Step 4
Select the version of AsyncOS for the machine. The machine will reboot after the upgrade is complete.
Step 5
Use the
resume
command on the upgraded machine to begin accepting new messages.
Step 6
Repeat steps 1 - 5 for each machine in the cluster.
Note
After you disconnect a machine from the cluster, you cannot use it to change the configurations
of other machines. Although you can still modify the cluster configuration, do not change it
while machines are disconnected because settings can become unsynchronized.
of other machines. Although you can still modify the cluster configuration, do not change it
while machines are disconnected because settings can become unsynchronized.
Step 7
After you have upgraded all the machines, use the reconnect operation of clusterconfig for each upgraded
machine to reconnect it. For example, to reconnect the machine
machine to reconnect it. For example, to reconnect the machine
losangeles.example.com
, type
clusterconfig
reconnect
losangeles
.example.com
. Note that you can only connect a machine to
a cluster that is running the same version of AsyncOS.
CLI Command Support
All Commands Are Cluster-aware
All CLI commands in AsyncOS are now cluster-aware. The behavior of some commands will change
slightly when issued in a cluster mode. For example, the behavior of the following commands changes
when issued on a machine that is part of a cluster:
slightly when issued in a cluster mode. For example, the behavior of the following commands changes
when issued on a machine that is part of a cluster: