Brocade Communications Systems StorageWorks 4400 Enterprise V User's Guide download pdf (Page 28)

to the loops in the main cabinet. Copper cables are used the controllers (mirror port) and the controllers

and the drive enclosures or loops.

Storage system racks

All storage system components are mounted in a rack. Each configuration includes one controller

enclosure holding both controllers (the controller pair), FC cables the controller and the disk enclosures.

Each controller pair and all associated drive enclosures form a single storage system.

The rack provides the capability for mounting standard 483 mm (19 in) wide controller and drive

enclosures.

NOTE:

Racks and rack-mountable components are typically described using “U” measurements. “U”

measurements are used to designate panel or enclosure heights. The “U” measurement is a standard

of 41mm (1.6 in).

The racks provide the following:

• Unique frame and rail design—Allows fast assembly, easy mounting, and outstanding structural

integrity.

• Thermal integrity—Front-to-back natural convection cooling is greatly enhanced by the innovative

multi-angled design of the front door.

• Security provisions—The front and rear door are lockable, which prevents unauthorized entry.

• Flexibility—Provides easy access to hardware components for operation monitoring.

• Custom expandability—Several options allow for quick and easy expansion of the racks to create

a custom solution.

Rack configurations

Each system configuration contains several disk enclosures included in the storage system. See Figure

1 for a typical EVA4400 rack configuration. The standard rack for the EVA4400 is the 42U HP

10000 G2 Series rack. The EVA4400 is also supported with 22U, 36U, 42U 5642, and 47U racks.

The 42U 5642 is a field-installed option and the 47U rack must be assembled onsite because the

cabinet height creates shipping difficulties.

For more information on HP rack offerings for the EVA4400, see http://h18004.www1.hp.com/

products/servers/proliantstorage/racks/index.html.

Power distribution

AC power is distributed to the rack through a dual Power Distribution Unit (PDU) assembly mounted

at the bottom rear of the rack. The characteristics of the fully-redundant rack power configuration are

as follows:

• Each PDU is connected to a separate circuit breaker-protected, 30-A AC site power source

(220–240 VAC ±10%, 50 or 60-Hz, ±5%). Figure 17 illustrates the compatible 60-Hz and 50-

Hz wall receptacles.

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Brocade Communications Systems StorageWorks 4400 Enterprise V User's Guide Page 28