Connecting The Power Cords; Levels Of Protection Against Power Failures - HP AD510A - StorageWorks Modular Smart Array 1500 cs 2U Fibre Channel SAN Attach Controller Shelf Hard Drive Installation Manual

NOTE: Typically, the first Fibre Channel HBA that is initialized during the POST is the Fibre Channel
HBA on the lower slot number. However, because this can change depending on your server
architecture, always check your specific system architecture first.
Connect the second Fibre Channel HBA that is initialized during the POST to the passive Fibre
Channel Interconnect Switch (that is, the Fibre Channel SAN switch that is connected to the
MSA1500 passive controller—in other words, the controller on the left as you look at the MSA1500
from the front).
NOTE: Typically, the second Fibre Channel HBA that is initialized during the POST is the Fibre
Channel HBA on the higher slot number. However, because this can change depending on your
server architecture, always check your specific system architecture first.

Connecting the power cords

To protect your system from power-failure-related downtime, each MSA ships standard with a
redundant power supply. Depending how you connect the power supplies to your power source,
you can eliminate downtime 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 7

Levels of protection against power failures

MSA power supplies connected to...
One power source
Provide this level of protection...
Protects you from downtime when one of the MSA power
supplies fails.
The remaining power supply/fan module can operate the
MSA until you install a replacement module.
HP StorageWorks 1500 Modular Smart Array installation guide 49