HP StorageWorks 1510i Modular Smart Array installation and user guide (383070-002, July 2008)

Table 3 Levels of protection against power failure
Connection method
Level of protection
MSA1510i power supplies connected to:
Protects you from downtime when one of the
MSA1510i power supplies fails.
• One power source
The remaining power supply/fan module can operate
the MSA1510i until a replacement module is installed.
MSA1510i power supplies connected to:
Protects you from downtime when one of the
MSA1510i power supplies fails.
• Two separate power sources
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 MSA1510i
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 subsystem
MSA1510i power supplies connected to:
Protects you from downtime when one of the
MSA1510i power supplies fails.
• Two UPSs
• Two separate power sources
Protects you from data loss when one or both of your
powersourcesfailsduetoapulledcable,tripped
breaker, or local power outage.
TheremainingpowersourceortheUPSpowers
the MSA1510i 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 subsystem.
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 upon it or
against it. Pay particular attention to the plug, electrical outlet, and the point where the cord is
attach
ed to the device.
• Unplugthepowercordfromthepowersupplytoremovepowerfromtheequipment.
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