Power Supplies; Peripheral Bays - NEC N8100-1223F User Manual

2-14 General Description

Power Supplies

When the additional power supply units are installed and system operates with four power supply
units, the server can continue its operation without interruption even if one of these power supply
units fails (in the redundant configuration).
If an additional power supply unit is installed while the system is operating with three power supply
units, a log that represents "power recovery" is recorded in the system event log. This indicates that
the power supply is in redundant configuration and maximum configuration.

Peripheral Bays

The system supports a variety of standard PC AT-compatible peripheral devices. The chassis
includes these peripheral bays:
Media bay for installing the standard 3.5-inch floppy disk drive (supports 720KB and
1.44MB floppy disk media) and the standard DVD-ROM drive.
A 5.25-inch device bay for installing up to two half-height 5.25-inch peripheral devices or
a full-height 5.25-inch peripheral devices such as an optional tape drives.
The SAS hard disk drive bay for installing up to five SAS hard disk drives. If you install
the additional hard disk drive cage, you can install up to thirteen SAS hard disk drives.
The SAS disk drives can be easily installed or removed. The drive carrier allows you to
access to disk drives from the front of the system. If disk drives are provided with RAID
configuration within the system, a disk drive can be swapped with another without power
interruption in the system (hot-swap).