Connect the SAN Volume Controller to the 2145 UPS-1U to protect your data in the event of an unexpected loss of external power.
Notes:
- To make the SAN Volume Controller cluster more resilient to power failure, the 2145 UPS-1U units can be connected to the redundant ac-power switch. If a redundant ac-power switch is not used, you can connect the two uninterruptible power supply units that are powering an I/O group to different, independent electrical power sources. If a single power source fails, the SAN Volume Controller cluster can then continue to operate with reduced performance.
- When connecting to the 2145 UPS-1U, use only the power cable assembly, part number 31P1177, that was supplied with the node. Power cable assemblies that were supplied with previous SAN Volume Controller models do not work with the 2145-8A4 model. The correct part is differentiated by the red tape that is used to bind the cables together.
Before you begin this task, see the completed customer's cable-connection table, which is described in the IBM® System Storage® SAN Volume Controller Planning Guide and can be downloaded from www.ibm.com/storage/support/2145.
Use the information in this table to identify the 2145 UPS-1U unit to which this node is to be connected.
Perform the following steps to connect the SAN Volume Controller to the 2145 UPS-1U:
- At the back of the SAN Volume Controller 2145-8A4 node,
plug the power cable of the combined power and serial cable into the
power connector 1 , as shown in Figure 1.
- 1 Power connector
- 2 Serial connector
- 3 Main power connector
- 4 Communication port
- 5 Load segment 2 receptacle
The SAN Volume Controller 2145-8A4 power is now connected to the 2145 UPS-1U.