Serial port

Enabling dynamic power saver

To configure the dynamic power saver, the power management module must be removed from the 1U power enclosure and the dynamic power saver feature must be enabled. The module is hot pluggable and can safely be removed during normal server operation (Figure 2). After enabling the dynamic power saver, reinstall the power management module.

Figure 2. The 1U power enclosure power management module and location of the dynamic power saver switches

Table 2. Dynamic power saver switch positions and functions

Position Function

1Dynamic power saver disabled (default)

2Dynamic power saver enabled

3Reserved (off = default)

The serial port on the back of the HP BladeSystem p-Class 1U power enclosure provides a way for IT administrators to directly monitor the status of the 1U power enclosure. As shown in Figure 3 and explained in Table 3, detailed information can be obtained through the serial port.

Table 3. Status information displayed through the serial port

Status information	Description

Uptime	Shows the amount of time the system has been powered on.

Power supply location (slot number), status,	Provides the physical location of power supplies, their fault status, power
power usage, input/output temperature	usage, and operating temperatures.

Enclosure backplane temperature	Displays the temperature on the enclosure backplane.

Number of fault conditions	Shows the number of unresolved faults in the system.

Status of unit identification (UID) LED	Specifies whether UID LED is active or not.

Status of enclosure link	Provides information as to whether the link is connected or not (the enclosure
	link connects to the blade enclosure).

Management module firmware version	Shows revision of the management firmware.

Overall power usage	Tabulates total power usage of all the power supplies in the enclosure.