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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
Chapter 4
4-1
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