APC RAID Subsystem SCSI-SATA II Spécifications Page 78

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Appendix A: Uninterruptible Power Supply
A.6.3 UPS Message Summary
Table A-1 below summarizes the UPS messages described above. It is
important that you become familiar with these messages and their meanings
to help maintain the integrity of the data running through your subsystem.
Message AC Power Battery
Power
Level (BPL)
Write
Policy
Status
UPS connection is absent N/A N/A Write back
UPS connection detected N/A N/A Write back
Warning: UPS AC Power-
Loss detected
Disconnected BPL > 50% Write through
Warning: UPS Battery
Low 50%. Please shut
down to protect data loss
Disconnected BPL < 50% Write through
Warning: UPS Battery
Low 50%.
Connected BPL < 50% Write through
UPS AC Power Restored Reconnected BPL > 50% Write back
UPS AC Power Restored Reconnected BPL < 50% Write through
UPS Battery restored to
safe level
Reconnected BPL > 50% Write back
Table A-1: UPS Status Messages
UPS Status Monitoring
A-5
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