
Controller Management
15000 [1]: dual label
Enter the number of the unit you wish to rename.
LABEL=1 for unit 1, Test System[1]
LABEL=2 for unit 2, Test System[2]
unit: 1
Enter a new label for unit 1, or DEFAULT to return to the default label. Up to 31 characters are permitted.
Current unit name: Test System[1]
New unit name: System[1]
Figure 3–28 Labeling a Controller Unit
3.2.12.4Singlet
The DUAL SINGLET command sets the system in the singlet mode. System recognizes only Unit 1. This command:
•disables cache coherency
•heals unit 1 if it is failed
•fails unit 2 before attempting to remove it.
To set the system in singlet mode not couplet mode, type: dual singlet<Enter>.
NOTE : The system may automatically add unit 2 if it is connected to the system. Therefore, we advise you to power off and remove unit 2 from the system after the Dual Singlet command is completed.
3.3 Performance Management
The controller optimizes performance operations due to its extensive monitoring and reporting capability.
3.3.1Optimizing I/O Request Patterns
The controller manages
Display Current Cache Settings
The CACHE command displays the current cache settings for each LUN in the system( Figure
55 |