Mitel 3300, Technician'S Handbook

Page: 233 / 431

223
Install and Replace Units
RAID Controllers
The RAID (Redundant Array of Independent Disks) controller mirrors all
data on two hard drives. In the event that one drive fails, the system
continues to operate on the remaining drive. Refer to Knowledge Base
Article 06-2806-00012 “RAID Controller Operations Manual” for RAID
operation details.
MXe II/MXe Server
To add a RAID controller in an MXe II or MXe Server:
1. Access the MXe carrier board (see page 163).
2. Remove the IDE interconnect cable from the interconnect card (see
Figure 35 on page 165).
3. Using a Phillips #2 screwdriver, remove the three retaining screws
from the interconnect card. Remove the interconnect card and place it
in an anti-static bag.
4. Before you install the RAID controller, first remove the grey plastic
bezel that covers the RAID controller LED and push button holes. The
bezel is located on the rear panel of the controller cover.
5. On the inside of the cover, insert a thin, pointed object through an LED
hole. Push the bezel cover out far enough to allow you to grasp the top
and bottom edges. Pull the bezel cover off the controller cover.
6. Position the new RAID controller board by carefully inserting the LED
indicators into the holes in the controller rear panel (see Figure 79).
CAUTION: The RAID controller does not protect against loss
of data as a result of a power outage. You must provide an
Interruptible Power Supply (UPS) to protect your system data
from an electrical disturbance.
Tip: It is very important to maintain current database backups; backups
should be done on a regular basis even when you have disk redundancy.