To ensure that the cluster system to be built operates efficiently, you need to determine the number of nodes and an appropriate operation mode.
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 | 2 to (number of supported nodes) | |
N:1 standby | 2 to | 3 to (number of supported nodes) | |
Cascade | 1 to | 3 to (number of supported nodes) | |
Priority transfer | 2 to | 3 to (number of supported nodes) | |
N:M standby | 2 to | 4 to (number of supported nodes) | |
Scalable operation | Scalable | 2 to (*) | 2 to (number of supported nodes) |
High-availability scalable operation | 2 to (*) | 2 to (number of supported nodes) | |
Single-node cluster operation | 1 to | 1 |
(*) For the scalable operation, a scalable cluster application is additionally required.
Note
Note that failover does not occur when a node is switched off. When designing the system, consider using an uninterruptible power supply (USP).
See
For supported configurations where PRIMECLUSTER is used in Oracle Solaris Zones environments, see "Chapter 16 Using PRIMECLUSTER in Oracle Solaris Zones Environment."
