APC RAID Subsystem SCSI-SATA II Especificações descarregar pdf (Página 89)

Falcon 24 Bay SCSI-SATA Installation and Hardware Reference Manual

B.6.1 Normal Operational Status

If the UPS is connected to main power and the UPS battery power level is above 50%,

then no status messages will appear and the “Write-back” write policy will be applicable.

B.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 or an established

link is lost.

Message 2: “UPS connection detected”

This message appears when the COM2 port link to a UPS has just been established.

Message 3: “Warning: UPS AC Power-Loss detected”

This message appears when the UPS battery power level remains above 50% but its

connection to the AC power source has been disrupted.

Message 4: “Warning: UPS Battery Low 50%. Please shut down to protect data loss”

This message appears when the UPS battery power level has dipped below 50% of its

charge capacity and the UPS has either been disconnected from the AC power source or

the AC power source has been disrupted. If the event triggered configuration has been

enabled, arrays using write-back caching will be forced to adopt the write-through mode.

When the UPS battery is restored to its full charge, the original array operating mode will

be restored.

Message 5: “Warning: UPS Battery Low 50%”

This message appears when the UPS battery power level has dipped below 50% of its

capacity. The default write policy will be changed from the default write back to write

through.

Message 6: “UPS Battery restored to safe level”

This message appears when the UPS battery power level has been restored to above 50%

of its capacity. The original array write policy will be restored.

Message 7: “UPS AC Power Restored”

This message appears when the AC power supply to the UPS has been restored. If the

UPS battery power level is below 50%, the write policy will remain as write through. If

the battery power level is above 50%, the write policy will change from write through to

write back.

B-4 UPS Status Monitoring

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