Connecting Power Cords - HP StorageWorks D2700 User Manual

Connecting power cords

To protect the system from power-failure-related downtime, each disk enclosure ships standard with
a redundant power supply. Depending how you connect the power supplies to the power source,
you can eliminate downtime caused by power-related failures.
When connecting the power cables, use the power cables shipped with the disk enclosure. After
power is supplied to the disk enclosure, the power supply automatically senses the input voltage and
the power supply LED illuminates as solid amber.
Connection Method
Disk enclosure power supplies connected to:
one power source
Disk enclosure power supplies connected to:
two separate power sources
Disk enclosure power supplies connected to:
two UPS
two separate power sources
WARNING!
To reduce the risk of electric shock or damage to the equipment:
Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all times.
Route the power cord so that it is not likely to be walked on or pinched by items placed against
it. Pay particular attention to the plug, electrical outlet, and the point where the cord is attached
to the disk enclosure.
Level of Protection
Protects you from downtime when one of the disk
enclosure power supplies fails.
The remaining power supply/fan module can operate
the disk enclosure until you install a replacement
module.
Protects you from downtime when one of the disk
enclosure power supplies fails.
Protects you from data loss when one of your power
sources fails, due to a pulled cable or tripped breaker.
The remaining power source can power the disk
enclosure 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 downtime when one of the disk
enclosure 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 disk enclosure 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.
D2600/D2700 Disk Enclosure User Guide 39