DUALΒΆ
DUAL Displays information about the dual system configuration.
Displays information about the dual system configuration.
- COHERENCY=ON|OFF
- Enables/Disables the cache coherency between the two units. Warning: Enabeling cache coherency will cause a cache restart to occur that will temporarily halt all IO activity until it completes.
- FAIL
- Fails the partner unit in the system.
- HEAL
- Restores the partner unit in the system to a healthy status. Warning: This operation will cause a cache restart to occur that will temporarily halt all IO activity until it completes.
- LABEL=x
This parameter allows the user to change the label assigned to each unit. This allows the user to uniquely identify each unit in the system. The CLI prompt for each unit is built by adding a colon and a space at the end of the label. Each unit can have a label up to 31 characters long. Entering DEFAULT will restore the label of the unit to its default setting.
Valid values for ‘x’ are 1 and 2.
- SINGLET
- This parameter tells the system that it is in singlet mode and not in couplet mode and only unit 1 is installed. This command will disable cache coherency, heal unit 1 if it is failed and fail unit 2 before attempting to remove it. The system may automatically add unit 2 if it is connected to the system so unit 2 should be powered off and removed from the system after the command is finished.
- TIMEOUT=x
Sets the dual cache coherency timeout for cache node requests. The timeout value is given in seconds. A value of zero allows for only one retry. It is recommended that this timeout value be smaller than the host timeout (HOST TIMEOUT=x). The valid range for ‘x’ is 0 to 255 seconds.
Default is 0 seconds.