HP AD510A HP StorageWorks 1500 Modular Smart Array Installation Guide (355901- - Page 55

Connecting the power cords, use the power cords shipped with the MSA.

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Installation Procedures - All Deployments Connecting the power cords To protect your system from power-failure-related down time, each MSA ships standard with a redundant power supply. Depending how you connect the power supplies to your power source, you can eliminate down time caused by power-related failures. When connecting the power cords, use the power cords shipped with the MSA. After power is supplied to the MSA, the power supply automatically senses the input voltage and the LED behind the power switch illuminates as solid amber. Table 6: Levels of Protection Against Power Failures Connection Method MSA power supplies connected to: ■ one power source MSA power supplies connected to: ■ two separate power sources MSA power supplies connected to: ■ two UPS ■ two separate power sources Level of Protection ■ Protects you from down time when one of the MSA power supplies fails. The remaining power supply/fan module can operate the MSA until you install a replacement module. ■ Protects you from down time when one of the MSA power supplies fails. ■ Protects you from data loss when one of your power sources fails, due to a pulled cable, tripped breaker. The remaining power source can power the MSA until the failed power source is restored or relocated. Depending on the cause and duration of the power outage, you can use this time to properly shut down your storage sub-system. ■ Protects you from down time when one of the MSA power supplies fails. ■ Protects you from data loss when one or both of your power sources fails, due to a pulled cable, tripped breaker or local power outage. The remaining power source or the UPS will power the MSA until power is restored to the source. Depending on the cause and duration of the power outage, you can use this time to properly shut down your storage sub-system. HP StorageWorks 1500 Modular Smart Array Installation Guide 55

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Installation Procedures - All Deployments
55
HP StorageWorks 1500 Modular Smart Array Installation Guide
Connecting the power cords
To protect your system from power-failure-related down time, each MSA ships
standard with a redundant power supply. Depending how you connect the power
supplies to your power source, you can eliminate down time caused by
power-related failures.
When connecting the power cords, use the power cords shipped with the MSA.
After power is supplied to the MSA, the power supply automatically senses the
input voltage and the LED behind the power switch illuminates as solid amber.
Table 6:
Levels of Protection Against Power Failures
Connection Method
Level of Protection
MSA power supplies connected
to:
■
one power source
■
Protects you from down time when one of the
MSA power supplies fails.
The remaining power supply/fan module can
operate the MSA until you install a replacement
module.
MSA power supplies connected
to:
■
two separate power sources
■
Protects you from down time when one of the
MSA power supplies fails.
■
Protects you from data loss when
one
of your
power sources fails, due to a pulled cable,
tripped breaker.
The remaining power source can power the MSA
until the failed power source is restored or
relocated. Depending on the cause and duration
of the power outage, you can use this time to
properly shut down your storage sub-system.
MSA power supplies connected
to:
■
two UPS
■
two separate power sources
■
Protects you from down time when one of the
MSA power supplies fails.
■
Protects you from data loss when
one
or
both
of your power sources fails, due to a pulled
cable, tripped breaker or local power outage.
The remaining power source or the UPS will
power the MSA until power is restored to the
source. Depending on the cause and duration of
the power outage, you can use this time to
properly shut down your storage sub-system.