HP AD510A HP StorageWorks 1500 Modular Smart Array installation guide (355901 - Page 50

WARNING, Table 7, To reduce the risk of electric shock or damage to the equipment

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Table 7 Levels of protection against power failures MSA power supplies connected to... Provide this level of protection... Two separate power sources • Two UPSs • Two separate power sources • Protects you from downtime 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 or 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 downtime 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. 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. • Unplug the power cord from the power supply to remove power to the equipment. 50 Installation procedures-All deployments

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Installation procedures—All deployments
50
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.
•
Unplug the power cord from the power supply to remove power to the equipment.
Two separate power sources
•
Protects you from downtime 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 or 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.
•
Two UPSs
•
Two separate power sources
•
Protects you from downtime 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.
Table 7
Levels of protection against power failures
MSA power supplies connected to...
Provide this level of protection...