The system configuration interface provides configuration
settings and options that can be used with the system.
These settings and options can have the following scope:
- System
- Logical unit (LU)
- The system
attempts to follow preferred ownership that is specified by the system.
You can specify which controller (A or B) is used to perform I/O operations
to a particular LU. If the system
can see the ports of the preferred controller and no error conditions
exist, it can access
that LU through one of the ports on that controller. Under error conditions,
the ownership is ignored.
- You must enable the following options on any LUs that are mapped
to the system:
- read caching
- write caching
- write cache mirroring
- You must not have caching without batteries that are enabled.