Table of Contents
Advertisement
A.5 Power On
When powering on the subsystem, the UPS must be powered on before the
subsystem. For instruction on how to power on the UPS, please refer to the
documentation that came with your UPS. Note that the power on sequence
described in Chapter 4 will be altered as shown below:
Step 1. Power on Fibre Channel connection devices (including hubs and
Step 2. Power on the UPS.
Step 3. Power on the AR3016G subsystem.
Step 4. Power on the host computers.
Step 5. Trigger the firmware to allow the subsystem to detect the UPS.
•
A UPS can be connected to the subsystem after the subsystem has
been powered on, but you will have to trigger the firmware to allow
the subsystem to detect the UPS.
A.6 UPS Status Monitoring
If a UPS has been correctly connected to the subsystem, the status of the
UPS will be constantly monitored by the controller through the COM2
(audio jack) serial port. The status of the UPS will determine the controller's
write policy, and messages that appear on the LCD panel and other
monitoring devices will keep you informed of the UPS status.
A.6.1 Normal Operational Status
If the UPS has been connected to main power and the UPS battery power
level is above 50%, then no status messages will appear and the default
"Write Back" write policy will be implemented by the controller.
A.6.2 UPS Messages
The following messages may appear on the LCD screen:
Message 1: "UPS connection is absent"
This message appears when COM2 has not been connected to the UPS.
Power On
switches).
To see how to do this please, refer to the User's Operation
Manual that came with the subsystem.
NOTE:
Appendix A: Uninterruptible Power Supply
A-3
Advertisement
Table of Contents
