Chapter 4
System Operation and Monitoring
4.1 Power
On
Once all of the disk drives have been properly installed and the I/O
ports or management interfaces have been connected, the
subsystem can be powered on.
4.1.1 Check
List
BEFORE
powering on the subsystem, please check the following:
Memory module:
The cache memory usually comes as a pre-
installed module. If a separately-purchased memory is applied,
make sure the memory module has been correctly installed on
the controller boards.
BBU:
For a single-controller model, battery backup unit is an
optional equipment. Make sure BBU(s) have been properly
installed before power-on.
Hard drives:
Hard drives have been correctly installed in the
drive trays.
Drive trays:
All the drive trays, whether or not they contain a
hard drive, have been installed into the subsystem.
Cable connections:
The subsystem has been correctly
connected to host computer(s), management computers, or
external networking devices.
Power cords:
The power cords have been connected to the
PSUs on the subsystem and plugged into the main power
source.
Ambient temperature:
All subsystem components have been
acclimated to the surrounding temperature.
Power On
4-1
