Chapter 22 Replacing the hard disk 259BCM200/400 4.0 Installation and Maintenance GuideReplacing a RAID configuration hard diskUse this procedure to replace a faulty disk in an existing RAID configuration.To replace a RAID configuration hard disk1 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 furtherinformation, refer to “RAID disk mirroring” on page 224.2 Determine if any of the RAID hard disks require replacement. If you determine a RAID disk isfaulty, continue to step 3. If you determine no fault exists in the hard disks, you do not need toreplace a hard disk.3 Shut down the system (see “Performing a system shutdown” on page 233).4 Disconnect the BCM system from the AC power source.5 Attach one end of the grounding strap to your wrist and the other end to a grounded metalsurface on the BCM main unit.6 Remove the RAID hard disk cage from the main unit or advanced function tray. Refer to“Removing a hard disk cage” on page 260.7 Remove the faulty hard disk (primary or mirror). Refer to “Removing a primary hard diskfrom a RAID hard disk cage” on page 268 or “Removing a mirror hard disk from a RAID harddisk cage” on page 269.8 Install a new hard disk to replace the faulty hard disk. For further information, refer to“Replacing a hard disk in the hard disk cage” on page 267. Ensure the hard disk cables connectto the correct hard disk (see caution).9 Install the RAID hard disk cage in your system. For further information, refer to “Installing ahard disk cage in a BCM200 main unit” on page 264 or “Installing a hard disk cage in aBCM400 main unit” on page 265.10 Restore the BCM system to operation (see “Restarting the system after maintenance” on page234).After bootup, the system automatically detects the presence of a RAID configuration andbegins the disk initialization and mirroring process.Caution: Use only Nortel-approved replacement components. Contact your accountrepresentative for the current list of approved replacement parts.Caution: It is vital that you connect the correct IDE ribbon cables to the correct harddisks. Connect the primary IDE ribbon cable to the primary hard disk. Connect the mirrorIDE ribbon cable to the mirror hard disk.
