Power Supplies; Peripheral Bays - NEC N8100-1220F User Manual

Power Supplies

When an additional power supply unit is installed and system operates with three power supply
units, the server can continue its operation without interruption even if one of these power supply
units fails (in the redundant configuration).
When one more additional power supply unit is installed and system operates with four power
supply units, AC power can be divided into two lines with a pair of power supply units. With the AC
power redundant configuration, the server can continue its operation without power interruption
even if either of AC power line fails.
If an additional power supply unit is installed while the system is operating with two power supply
units, a log that represents "power degrade" along with "power recovery" may be recorded in the
system event log. This indicates that the power supply is in redundant configuration but not in
maximum configuration.
If you disconnect the power cord immediately after you have connected it, the log indicating "power
recovery" is displayed, but "power degrade" may not be displayed.

Peripheral Bays

If you purchased the server with N8154-12F additional HDD cage (with 3.5-inch bay) being built-in,
one slot for backup device such as a magnetic tape drive is provided.
N8154-12F (with 3.5-inch bay) is a factory-installed option. You cannot purchase it separately.
Available Devices
The 3.5-inch device slot can contain a single-height SCSI device.
Setting of SCSI ID
When connecting the 3.5-inch device with the optional SCSI controller, refer to the
manual that comes with the SCSI controller.
– Setting of terminator
Set the terminator to "OFF".
General Description 2-15