CLI: Clustering and HA
You can use the cluster command to configure clustering.
Configure the Interface for the Cluster Service
cluster {interface|master|sync}
To configure a cluster internal or external address -
cluster interface <inf>
- Any interface not bound to a bridge or used in another role (e.g. Mirror or WCCP) may be used. This command will need to be run on each node in the cluster, and each with a unique cluster internal address.
cluster interface <inf> ip address <address> <netmask>
- This command should also be executed on all cluster nodes, using the same cluster external address.
To configure the master cluster -
cluster master interface <inf>
cluster master address vip <address> <netmask>
- The role of the node (master or slave) is shown in the CLICommnad line interface prompt. Once the cluster is up, configuration changes should only be made on the cluster master. Configuration changes made on the master will be sent to slave nodes.
To control how data is synchronized between cluster members -
[no] cluster sync {all|acceleration|monitor|optimizer|compression}
sync all- Acceleration, monitor and optimizer data are synchronized. This is disabled by default.sync acceleration- Synchronize acceleration data onlysync acceleration redirect-only- Do not accelerate any connections; only perform monitoringsync monitor- Synchronize monitor data onlysync optimizer- Synchronize optimizer data onlysync compression- Configure cluster compressions settingssync compression threshold- Set the size of the data block that will trigger compressionsync compression threshold <value>- Set the compression value (default is 2048)sync compression zip- Enable zip compression between cluster nodessync compression zip level <value>- Set the zip compression level, where 1 is the fastest, largest compressed block and 9 is the slowest, smallest compressed block and best compression. When zip compression is enabled, the level value defaults to 9 until changed. Note that the larger compression block requires less bandwidth, but results in smaller blocks and requires more CPU power.
Viewing cluster configuration and status
To show a brief overview of the current cluster configuration -
show cluster global brief
To show cluster sync status information -
show cluster sync {acceleration|optimizer|monitor|compression}
sync acceleration- Show acceleration sync statussync redirect-only- Synchronize redirect data onlysync monitor- Synchronize monitor data onlysync optimizer- Synchronize optimizer data onlysync compression- Show cluster compression information
To display all the appliances in the cluster -
show appliances