APC RAID Subsystem SCSI-SATA II Specifications Page 63

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Falcon 24 Bay SCSI-SATA Installation and Hardware Reference Manual
CAUTION!
Although the PSUs are redundant and the subsystem can withstand a single PSU
failure, it is advisable to replace a failed PSU immediately. The subsystem will be
held in an idle state if two PSUs have already failed in the subsystem.
4.3.4 Power On Status Check
Once the subsystem has been powered on, the status of the entire subsystem should be
checked to ensure that all components are receiving power and are functioning and that
there are no complications or malfunctions.
Controller module LEDs The controller ready, host and drive ports active
LEDs should all flash green during the initialization stage.
Drive tray LEDs The blue LED for all the drive trays (that contain hard
drives) should light up, showing that there is power.
LCD panel LEDs The blue LED on the LCD panel should come on, indicating
that power is being supplied to the system.
Firmware and RAIDWatch The overall status of the system may be checked
using the pre-installed firmware or the RAIDWatch GUI.
Audible alarm If any errors occur during the initialization process, the
onboard alarm will sound in a hastily repeated manner.
Drive tray LEDs should normally start flashing, indicating the RAID controller units are
attempting to access the hard drives.
NOTE:
The subsystem has been designed to run continuously. If a component failure occurs
the fault can be corrected while subsystem remains online.
4-12
Power On
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