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Care should be taken to ensure that the current does not exceed the rating of the 
power source circuitry. This includes cabling, power distributions, filters and any 
other components through which the main AC flows. The power requirements of 
the RAIDstation7 Fibre Channel Storage Array (both tower and rackmount) is 
given in Table 2-1and Table 2-2.

These power requirements must be added to the power demands of any other 
electrical devices installed in the equipment rack to calculate the total power con-
sumption of the complete system. In addition, any surge currents must be consid-
ered. Hard disk drives normally consume greater than twice the amount of current 
at start-up time than they use during steady state operation.

Adaptec recommends that all rackmount Storage Array shelves be grounded to a 
common point in the equipment rack. Each shelf should have a grounding braid 
running from it to this common grounding point (see Figure 2-1 ). A point for 
securing the grounding braid is provided at the rear of Adaptec rackmount cabi-
nets.

Amps

Volts (AC)

1.5

187 to 264

3

85 to 132