PRIMECLUSTER allows you to configure multiple cluster applications. The operation mode is determined depending on how you set up the cluster applications in the cluster system.
The main operation modes are listed below:
Classification | Operation mode | Number of cluster applications | Number of nodes |
|---|---|---|---|
Standby operation | 1:1 standby | 1 | 2 |
Mutual standby | 2 to (number of nodes) | 2 to (number of supported nodes) | |
N:1 standby | 2 to (number of nodes - 1) | 3 to (number of supported nodes) | |
Cascade | 1 to (number of nodes) | 3 to (number of supported nodes) | |
Priority transfer | 2 to (number of nodes - 1) | 3 to (number of supported nodes) | |
Scalable operation | Scalable | 1 to (number of nodes) | 1 to (number of supported nodes) |
High-availability scalable operation | 1 to (number of nodes) | 2 to (number of supported nodes) |
Note
If you use the virtual machine function, the cluster system operation mode of 3 or more nodes is not supported.
If an operating node is powered off, the failover function may fail to work. Take corrective action as follows.
Connect all nodes to UPS.
Connect the node, and BMC or iRMC to different power sources to prevent simultaneous power-off.
