Nortel Networks 400 4.0 User Manual

Chapter 22 Replacing the hard disk

BCM200/400 4.0 Installation and Maintenance Guide

Use this procedure to replace a faulty disk in an existing RAID configuration.

If you still have access to Element Manager, monitor the RAID hard disk activity status. 
Diagnose hard disk fault conditions and perform maintenance activities if required. For further 
information, refer to 

Determine if any of the RAID hard disks require replacement. If you determine a RAID disk is 
faulty, continue to step 3. If you determine no fault exists in the hard disks, you do not need to 
replace a hard disk.

Shut down the system (see 

Disconnect the BCM system from the AC power source.

Attach one end of the grounding strap to your wrist and the other end to a grounded metal 
surface on the BCM main unit.

Remove the RAID hard disk cage from the main unit or advanced function tray. Refer to 

Remove the faulty hard disk (primary or mirror). Refer to 

Install a new hard disk to replace the faulty hard disk. For further information, refer to 

. Ensure the hard disk cables connect 

to the correct hard disk (see caution). 

Install the RAID hard disk cage in your system. For further information, refer to 

 or 

10 Restore the BCM system to operation (see 

).

After bootup, the system automatically detects the presence of a RAID configuration and 
begins the disk initialization and mirroring process.

Caution: Use only Nortel-approved replacement components. Contact your account 
representative for the current list of approved replacement parts.

Caution: It is vital that you connect the correct IDE ribbon cables to the correct hard 
disks. Connect the primary IDE ribbon cable to the primary hard disk. Connect the mirror 
IDE ribbon cable to the mirror hard disk.