HP Integrated Lights-Out 4 - Manual (Page 232)

2. Click one of the following buttons:
•
Momentary Press—The same as pressing the physical power button. If the server is
powered off, a momentary press will turn the server power on.
Some operating systems might be configured to initiate a graceful shutdown after a
momentary press, or to ignore this event. HP recommends using 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 server is powered off as a result of this operation. Using this option might circumvent
the graceful shutdown features of the operating system.
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 server to warm-boot: CPUs and I/O resources are reset. Using this
option circumvents the graceful shutdown features of the operating system.
•
Cold Boot—Immediately removes power from the server. Processors, memory, and I/O
resources lose main power. The server will restart after approximately 6 seconds. Using
this option circumvents the graceful shutdown features of the operating system.
NOTE: The Press and Hold, Reset, and Cold Boot options are not available when the server
is powered down.
Configuring the System Power Restore Settings
The System Power Restore Settings section enables you to control system behavior after power is
lost. You can also configure these settings by using the system RBSU or UEFI System Utilities during
POST. You must have the Configure iLO Settings privilege to change the System Power Restore
Settings.
To change the System Power Restore Settings:
1.
Navigate to the Power Management
→Server Power page, as shown in
Figure 121 (page 231) .
2. Select an Auto Power-On value.
This setting determines how iLO behaves after power is restored—for example, when the
server is plugged in or when a UPS is activated after a power outage.
The following options are available:
•
Always Power On—Power on the system after the power-on delay (default for BL servers).
•
Always Remain Off—The system remains off until directed to power on.
•
Restore Last Power State—Return to the server power state when power was lost. If the
server was on, it powers on; if the server was off, it remains off. This option is the default
setting for ML, DL, and SL servers. It is not available on BL servers.
3. Select a Power-On Delay value.
This setting staggers server automatic power-on in a data center. It determines the amount of
time iLO delays before powering on a server after iLO startup is complete.
The following options are available:
•
Minimum Delay—Power-on occurs after iLO startup is complete.
•
15 Second Delay—Power-on is delayed by 15 seconds.
•
30 Second Delay—Power-on is delayed by 30 seconds.
•
45 Second Delay—Power-on is delayed by 45 seconds.
232 Using iLO