LaCie 12big Rack Fibre 8 Uživatelský manuál stáhnout pdf (Strana 12)

LaCie 12big Rack Fibre 8 System Overview

User Manual page 12

1.4. The Plug-in Modules

A LaCie 12big Rack Fibre 8 enclosure requires the following mod-

ules for normal operation:

✦ (2) 580W AC Power Cooling Modules.

✦ (1 or 2) LaCie 12big Rack Fibre 8 RAID Controller module(s)

for the 12big Rack Fibre 8.

✦ (1 or 2) Disk I/O Modules for the 12big Rack Fibre Expansion

enclosure.

✦ (1 to 12) Drive Carrier modules with either SAS or SATA disk

drives.

1.4.1. Power Cooling Module

CAUTION: To prevent overheating, do not operate the enclosure

with a PCM removed for more than 10 minutes.

Up to two 100-240V 580W dual fan power cooling modules are

supplied at the rear of the enclosure as part of the enclosure core

product (Fig. 06). This system provides an N+1 redundant power

conﬁguration. If a PCM fails, the system will continue to operate nor-

mally up to 24 hours on the remaining PCM until the failed module

is replaced.

Each PCM features an ON/OFF switch and four LEDs that provide

operational status information. The cooling fans are speed con-

trolled via ﬁrmware. Should a ﬁrmware condition exists or a tem-

perature threshold exceeded, the fans speed will be increased to a

maximum value until the condition is corrected.

The enclosure is designed to power up and operate with two power

cooling modules and allows for a failure of one PCM while continu-

ing normal operations. Two PCMs must always be installed.

continued on the next page>>

Fig. 06 - Power Cooling Module

Fig. 07 - Power Cooling Module LEDs

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 86 87

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LaCie 12big Rack Fibre 8 Uživatelský manuál Strana 12