hp StorageWorks NAS e7000 v2 Maintenance and Service Guide

Removal and Replacement Procedures

54 NAS e7000 v2 Maintenance and Service Guide

7. Swing the latch back to unlock the expansion board (2).

8. Lift the expansion board release handle to disengage the board from the slot (3).

9. Remove the board from the slot (4).

Reverse steps 1 through 9 to replace the expansion board.

Figure 29: Removing a PCI-X Hot Plug expansion board

Performance Balancing

Before replacing the expansion board, review the following recommendations.

Balancing is the paired arrangement of expansion boards for optimal performance based on the

bus architecture of the expansion slots. Properly balancing the boards across buses can

improve performance. To balance expansion boards:

■ Populate slots from the center of the server to ensure optimal thermal conditions. Slot 6 is

in the center of the server and has the best cooling.

■ Populate slots across different buses before populating two slots on the same bus.

Table 13 provides a guideline for slot population order based on the above recommendations.

Note: HP recommends that the Integrated Lights-Out (iLO) board be populated in slot 1 due to

internal cabling requirements.

Note: The slot population order that follows is a recommendation only; any PCI or PCI-X expansion

board may reside in any slot.