Nortel Networks BCM200/400 - Manual (Page 265)

Chapter 22 Replacing the hard disk 265
BCM200/400 4.0 Installation and Maintenance Guide
Replacing a RAID configuration hard disk
Use this procedure to replace a faulty disk in an existing RAID configuration.
To replace a RAID configuration hard disk
1 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
“RAID disk mirroring” on page 230 .
2 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.
3 Shut down the system (see “Performing a system shutdown” on page 239 ).
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 metal
surface 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 266 .
7 Remove the faulty hard disk (primary or mirror). Refer to “Removing a primary hard disk
from a RAID hard disk cage” on page 274 or “Removing a mirror hard disk from a RAID hard
disk cage” on page 275 .
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 273 . Ensure the hard disk cables connect
to the correct hard disk (see caution).
9 Install the RAID hard disk cage in your system. For further information, refer to “Installing a
hard disk cage in a BCM200 main unit” on page 270 or “Installing a hard disk cage in a
BCM400 main unit” on page 271 .
10 Restore the BCM system to operation (see “Restarting the system after maintenance” on page
240 ).
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.