The system configuration interface provides configuration
settings and options that can be used with the Lenovo Storage V7000clustered system.
These settings and options can have the following scope:
- System
- Logical unit (LU)
- The Lenovo Storage V7000 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 given LU. If the Lenovo Storage V7000 system
can see the ports of the preferred controller and no error conditions
exist, the Lenovo Storage V7000 system
accesses that LU through one of the ports on that controller. Under
error conditions, the ownership is ignored.
- You must have the following options enabled on any LUs that are
mapped to the Lenovo Storage V7000 system:
- read caching
- write caching
- write cache mirroring
- You must not have caching without batteries enabled.