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.
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) | |
Single-node cluster operation | - | 1 | 1 |
Note
If an operating node in one side is disconnected abruptly due to a power failure or other power supply problem, failover may not work. Take corrective action as follows:
Connect all the nodes to UPS.
When configuring the cluster system using the extended partitions in PRIMEQUEST 3000 series (except B model), the number of supportable nodes is up to 4 nodes per cluster system. (However, there is no change in the configuration where the number of supportable node is less then 4 nodes.)
