HP 4000.6000.8000 Enterprise Virtual Arrays - Manual (Page 43)

Figure 20 HSV200-A/B controller—rear view
2. CAB (cabinet address bus) 1. Dual controller interconnect
4. Power ON 3. Unit ID
6. FC cache mirror ports 5. FC device ports
8. Power supply 0 7. FC host ports
10. Service connectors (not for customer use) 9. Power supply 1
Figure 21 HSV controller—front view
2. Battery 1 (EVA8000/8100 only) 1. Battery 0
4. Blower 1 3. Blower 0
6. Status indicators 5. Operator Control Panel (OCP)
7. Unit ID
High availability features
Two interconnected controllers ensure that the failure of a controller component does not disable
the system. A single controller can fully support an entire system until the defective controller, or
controller component, is repaired. For EVA8x00 configurations with more than four disk drive
enclosures, the complete data redundancy configuration includes device loop switches on the two
Loop A and two Loop B data paths. For EVA4x00 and EVA6x00 configurations, data redundancy
is accomplished with device loop switches on the two Loop A data paths.
Each HSV210-A/B controller has two lead-acid cache batteries that provide power to the cache
memory. Each HSV200-A/B controller has one battery. When the batteries are fully charged, they
can provide power to the cache for up to 96 hours.
Operator control panel
The operator control panel (OCP) provides a direct interface to each controller. From the OCP you
can display storage system status and configuration information, shut down the storage system,
and manage the password.
The OCP includes a 40-character LCD alphanumeric display, six push-buttons, and five status
indicators. See
Figure 22 (page 44) .
HP Command View EVA is the tool you will typically use to display storage system status and
configuration information or perform the tasks available from the OCP. However, if HP P6000
Command View is not available, the OCP can be used to perform these tasks.
HSV controllers 43