 | ||
| IP Conservation Mode (ICM) | ||
|---|---|---|
| Prev | Network agents | Next |
Requires fewer IP addresses than Performance Mode, but provides slower failover.
When a MultiNICA resource controls all the NICs of a cluster node, the NICs must have the same base IP address. This IP address must be unique, and cannot appear on any other NIC on any other node. You do not need to enable the base IP addresses beforehand. This mode does not support failing back the NIC, see the optional Failback attribute.
When you specify all the NICs with the same base IP address, the agent runs in ICM. It enables the base IP address on the active NIC.
In case of a failover, it moves the base IP address to the new active NIC. It also moves all the virtual IP addresses that are configured on that NIC. It then tries to find the first working NIC in the order of priority.