Several policies exist for individual resource groups.
These policies are:
Table 1. Resource group policies
| Resource group |
Policy |
| Startup |
- Online on Home Node Only. The resource group is brought
online only on its home (highest priority) node during the resource
group startup. This requires the highest priority node to be available
(first node in the resource group's node list).
- Online on First Available Node. The resource group comes
online on the first participating node that becomes available.
- Online on All Available Nodes. The resource group is brought
online on all nodes.
- Online Using Distribution Policy. Only one resource group
is brought online on each node.
|
| Fallover |
- Fallover to Next Priority Node in the List. The resource
group follows the default node priority order specified in the resource
group's node list.
- Fallover Using Dynamic Node Priority. Before selecting this option,
select one of the three predefined dynamic node priority policies. These are based on RSCT
variables, such as the node with the most memory available. Fallover for this option is not
supported when sites are configured.
- Bring Offline (on Error Node Only). Select this option
to bring a resource group offline on a node during an error condition.
|
| Fallback |
- Fallback to Higher Priority Node in the List. A resource
group falls back when a higher priority node joins the cluster. If
you select this option, you can use the delayed fallback timer. If
you do not configure a delayed fallback policy, the resource group
falls back immediately when a higher priority node joins the cluster.
- Never Fallback. A resource group does not fall back to
a higher priority node when it joins the cluster.
|