Appendix B: HA for V6x00 and Virtual Appliances
Deleting a Node from a Cluster
DSM Installation and Configuration Guide
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1. Select
High Availability
in the menu bar.
2. Check the box next to the node to be deleted.
3. Click
Delete
to remove the node from the cluster.
4. Log in to the CLI of the HA node that you are removing from the cluster.
5. Switch to the HA menu, type:
0001:dsm$ ha
6. To disable the communication between the nodes and stop synchronizations to the node, in the HA menu, type:
0001:ha$ cleanup
Deleting a Node from a Cluster with Hosts assigned
When deleting a node from an HA cluster, you must reassign the hosts in the CLI or in the UI. You can:
l
Re-assign hosts from their designated HA node to another HA node.
l
Use the
rr
(round robin) option and have the DSM evenly distribute the hosts to balance the load in the HA
cluster.
Moving a Host to a different Node with the CLI
To move the hosts to a specific HA node, type:
0001:ha$ remove <
node1
> reassignhost <
node2
>
Example
0001:ha$ remove dsm15099.i.vormetric.com reassignhost dsm15100.i.vormetric.com
To make the DSM move the hosts to HA nodes and evenly distribute the load, type:
0001:ha$ remove <
node1
> reassignhost rr
Example
0001:ha$ remove dsm15099.i.vormetric.com reassignhost rr
System Response
WARNING: This command removes the given server node from the HA cluster. After deletion, running
the "ha cleanup" command from its CLI will be required.
This may take several minutes.
Continue? (yes|no)[no]:yes
SUCCESS: Removed server node from the HA cluster.
WARNING
Remember to ALWAYS run
cleanup
on the node that was removed from the HA cluster.
Moving a Host to a different Node with the UI
When you delete a node in the UI that has hosts assigned to it, a dialog opens providing options for host reassignment.
You can cancel the delete and manually reassign the hosts yourself, or the DSM can perform the reassignment.
1. On the DSM, click
High Availability
.
2. Select the node to which you want to move the Agent(s).