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Drive trays: All the drive trays, whether or not they contain a
hard drive, have been installed into the system.
Cable connections: The system has been correctly
connected to host computer(s), management computers, and
JBODs.
Power cords: The power cords have been connected to the
PSUs on the system and plugged into the power source.
Ambient temperature: All the system components have
been acclimated to the surrounding temperature.
Power On Procedure
When powering on the subsystem, please follow these steps:
Step 1.
Power on expansion JBODs. If a multi-enclosure
configuration is applied, power on the expansion
enclosures.
Step 2.
Power on the RAID subsystem.
To power on the subsystem, please follow the procedures
below:
˙
Using the included power cords, connect both power
sockets on the subsystem's power supplies to the
main power source.
˙
Power on by using the two (2) power switches on
power supplies (See the figure below). Each switch
controls a single PSU; therefore make sure both
switches are turned on.
Power Sockets and Power Switches
CAUTION!
Although the PSUs are redundant and a single PSU can provide
sufficient power to the system, it is advisable to turn on both power
supplies. If only one (1) PSU is operating and if that PSU fails,
system downtime will occur.
Step 3.
Power on the host computers.
The host computers should be the last devices that are
turned on. Please refer to the documentation that came
Chapter 3: System Connections
3-11
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