Lenovo BladeCenter HS22, Installation And User Manual, Page: 23 / 96

The following illustration identifies the information LEDs on the SAS hot-swap hard disk drive.
Hard disk drive activity LED (green): When this green LED is lit, it indicates that there is activity on the
storage drive.
Hard disk drive status LED (amber): When this amber LED is lit, it indicates that an error has occurred with
the storage drive. The LED turns off only after the error is corrected.
Turning on the blade server
Use this information to turn on the blade server.
After you connect the blade server to power through the BladeCenter unit, the blade server can start in any
of the following ways:
• You can press the power-control button on the front of the blade server (see “Blade server controls
and LEDs” on page 11) to start the blade server.
Notes:
1. Wait until the power-on LED on the blade server flashes slowly before you press the power-control
button. While the service processor in the blade server is initializing and synchronizing with the
management module, the power-on LED flashes rapidly, and the power-control button on the blade
server does not respond. This process can take approximately two minutes after the blade server has
been installed.
2. While the blade server is starting, the power-on LED on the front of the blade server is lit and does
not flash. See “Blade server controls and LEDs” on page 11 for the power-on LED states.
• If a power failure occurs, the BladeCenter unit and the blade server can be configured to start
automatically when power is restored through the Advanced Management Module.
• You can turn on the blade server remotely by using the management module.
• If the blade server is connected to power (the power-on LED is flashing slowly), the blade server is
communicating with the management module, the operating system supports the Wake on LAN feature,
and the Wake on LAN feature has not been disabled through the management module, the Wake on LAN
feature can turn on the blade server.
Chapter 2
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Power, controls, and indicators
13