Number
Item
1
Cable tie
2
Cable
Step 6: Connect the storage system to power
Power for the storage system is provided through two power supplies, one per controller. The
input voltage is auto-adjusting for 200-240 (-11%) VAC, 50-60 Hz power connections.
For best practice, establish power redundancy by routing each power supply to independent
PDUs and then routing the PDUs to separate external power sources on different branch
circuits. This arrangement enables the storage system to continue operating if AC power is
lost to one power supply.
Note:
Multiple outlets in a PDU or power strip do not constitute an independent
electrical source.
Procedure
1.
Confirm that all power sources are off.
2.
Connect an AC power cable to the power receptacle on the rear of each controller.
3.
Route the power cables from each controller to separate PDUs, and then use the pre-
installed tie wraps at each controller power receptacle to secure the power cables.
4.
Connect the PDUs to separate external power sources on different branch circuits.
Step 6: Connect the storage system to power
Installing your storage system
Hitachi Virtual Storage Platform E990 Installation Guide
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