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Brown-out recovery, Proliant bl p-class advanced management – HP Integrated Lights-Out 2 User Manual

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Brown-Out recovery

A brown-out condition occurs when power momentarily is lost to the server. A brown-out interrupts
the operating system, but does not interrupt the iLO firmware. Under brown-out conditions the iLO
service remains uninterrupted for about 4 seconds (longer power interruptions result in black-outs).

Support has been added to iLO to detect and recover from power brown-outs. If iLO detects that
a brown-out has occurred, server power is restored after the power-on delay. After the brown-out
recovery, iLO firmware records a Brown-out recovery event in the event log.

NOTE:

The brown-out recovery service is available on the HP ML and DL servers. BL c-Class blade

servers and SL-class servers are not affected.

ProLiant BL p-Class Advanced management

iLO 2 Advanced is a standard component of ProLiant BL p-Class server blades that provides server
health and remote server blade manageability. Its features are accessed from a network client
device using a supported Web browser. In addition to other features, iLO 2 Advanced provides
keyboard, mouse, and video (text and graphics) capability for a server blade, regardless of the
state of the host operating system or host server blade.

iLO 2 includes an intelligent microprocessor, secure memory, and a dedicated network interface.
This design makes iLO 2 independent of the host server blade and its operating system. iLO 2
provides remote access to any authorized network client, sends alerts, and provides other server
blade management functions.

Using a supported Web browser, you can:

Remotely access the console of the host server blade, including all text mode and graphics
mode screens with full keyboard and mouse controls.

Remotely power up, power down, or reboot the host server blade.

Remotely boot a host server blade to a virtual diskette image to perform a ROM upgrade or
install an operating system.

Send alerts from iLO 2 Advanced regardless of the state of the host server blade.

Access advanced troubleshooting features provided by iLO 2 Advanced.

Launch a Web browser, use SNMP alerting, and diagnose the server blade using HP Systems
Insight Manager.

Configure static IP bay settings for the dedicated iLO 2 management NICs on each server
blade in an enclosure for faster deployment.

The server blade must be properly cabled for iLO 2 connectivity. Connect to the server blade with
one of the following methods:

Through an existing network (in the rack) – This method requires you to install the server blade
in its enclosure and assign it an IP address manually or using DHCP.

Through the server blade I/O port

In the rack – This method requires you to connect the local I/O cable to the I/O port and
a client PC. Using the static IP address listed on the I/O cable label and the initial access

information on the front of the server blade, you can access the server blade with the iLO
2 Advanced Remote Console.

— Out of the rack, with the diagnostic station – This method requires you to power the server

blade with the optional diagnostic station and connect to an external computer using the
static IP address and the local I/O cable. For cabling instructions, refer to the
documentation that ships with the diagnostic station or to the Documentation CD.

— Through the server blade rear panel connectors (out of the rack, with the diagnostic

station) – This method enables you to configure a server blade out of the rack by powering

ProLiant BL p-Class Advanced management

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