Chapter 22 Replacing the hard disk 271

Figure 131 Install a primary hard disk into the RAID hard disk cage

Install the programmed (primary) hard disk into 1 the hard disk cage

Rear view

Primary hard disk IDE ribbon cable

Mirror hard disk

IDE ribbon cable

Note: Do not unfold the hard disk IDE ribbon cables

2 Install the hard disk retaining screws

3

Connect the primary hard disk IDE ribbon cable to the primary hard disk

Installing a mirror hard disk into a RAID hard disk cage

Use this procedure to install the mirror hard disk into the RAID hard disk cage for the BCM200 and BCM400 systems. Use this procedure if you need to replace a faulty mirror hard disk.

Nortel recommends that you replace a failed mirror hard disk to retain full redundancy. Replace the failed mirror hard disk during a period of low call traffic. If you choose to remove both the primary and mirror hard disks from the hard disk cage, place an identifying mark on the primary hard disk to ensure correct installation.

Warning: Protect the hardware components against damage from electrostatic discharge. Always wear a grounded wriststrap before you handle components. Always place the components in a static-free container.

Note: For a RAID upgrade kit, the mirror disk and primary disk IDE ribbon cables are preinstalled. If applicable, install the programmed hard disk from your single disk system into the RAID hard disk cage (use as the primary disk; see Figure 131).

Note: For a BCM200 system, orient the hard disk so that the power and IDE connectors are on the bottom and opposite to the hard disk cage lift tab (see Figure 130).

For a BCM400 system, orient the hard disk so that the power and IDE connectors are on the bottom and on the same side as the hard disk cage lift tab (see Figure 132).

BCM200/400 4.0 Installation and Maintenance Guide

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Nortel Networks BCM200, 400 4.0 manual Installing a mirror hard disk into a RAID hard disk cage