Hp StorageWorks 3000 RAID Array Manuel d'utilisateur télécharger pdf (Page 30)

1-14 RAID Array 3000 Controller Shelf Hardware User’s Guide

Compaq Confidential – Need to Know Required

Writer: Bob Young Project: RAID Array 3000 Controller Shelf Hardware User’s Guide Comments:

Part Number: EK-SMCPQ-UG. D01 File Name: b-ch1 Product Overview.doc Last Saved On: 12/4/00 1:09 PM

Controller Shelf Power Supplies

The controller shelf has two interchangeable, air-cooled, 180 watt AC power

supply SBBs (see Figure 1– 8) located in the left two SBB slots of the shelf.

The power supplies provide redundant power if one of the units should

malfunction. Each supply provides +5 and +12 VDC to power the RAID

controllers, the host I/O modules, the device I/O module, and the blowers. The

first power supply from the left edge of the shelf is designated as A and the

second as B. The SBB front panel has an AC input power receptacle, a power

supply status LED, and a shelf status LED.

SHR-103

Figure 1-8. Power supply

UPS

The primary function of the UPS is to keep the entire storage system powered

up to enable the controllers to flush cache to disks. The UPS also protects the

storage system from problems associated with poor quality AC power or a

complete loss of AC power. The UPS is normally mounted in a lower shelf

slot in the cabinet using a custom set of mounting brackets.

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Hp StorageWorks 3000 RAID Array Manuel d'utilisateur Page 30