Installation Manual

system commands to complete a graceful operating system shutdown before you attempt
to shut down by using the Virtual Power Button.
• Press and Hold—The same as pressing the physical power button for 5 seconds and then
releasing it.
The servers in the selected group are powered off as a result of this operation. Using this
option might circumvent a graceful operating system shutdown.
This option provides the ACPI functionality that some operating systems implement. These
operating systems behave differently, depending on a short press or long press.
• Reset—Forces the servers in the selected group to warm-boot: CPUs and I/O resources
are reset. Using this option circumvents a graceful operating system shutdown.
• Cold Boot—Immediately removes power from the servers in the selected group. Processors,
memory, and I/O resources lose main power. The servers will restart after approximately 6
seconds. Using this option circumvents a graceful operating system shutdown.
Servers affected by the Virtual Power Button
The Affected Systems list provides the following details about the servers affected when you
initiate a Virtual Power Button action:
• Server Name—The server name defined by the host operating system.
• Server Power—The server power state (ON or OFF).
• UID Indicator—The state of the UID LED. The UID LED helps you identify and locate a
server, especially in high-density rack environments. The possible states are UID ON, UID
OFF, and UID BLINK.
• iLO Hostname—The fully qualified network name assigned to the iLO subsystem. To open
the iLO web interface for the server, click the link in the iLO Hostname column.
• IP Address—The network IP address of the iLO subsystem. To open the iLO web interface
for the server, click the link in the IP Address column.
Click Next or Previous (if available) to view more servers in the list.
More information
Exporting iLO Federation information to a CSV file
Configuring group power capping
Prerequisites
• An iLO license that supports this feature is installed. For more information, see the following
website: http://www.hpe.com/info/ilo/licensing.
• Each member of the selected iLO Federation group has granted the Configure iLO Settings
privilege to the group.
Configuring a power cap
1. Navigate to the iLO Federation→Group Power Settings page.
2. Select a group from the Selected Group menu.
Changes you make on this page affect all of the systems in the selected group.
3. Select the Enable power capping check box.
4. Enter the Power Cap Value in watts, BTU/hr, or as a percentage.
The percentage is the difference between the maximum and minimum power values. The
power cap value cannot be set below the server minimum power value.
Configuring group power capping 207