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144 Chapter 6 Prepare Hardware for Maintenance or Upgrades
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Figure 78 provides an overview of the process for preparing the Business Communications
Manager hardware for maintenance or upgrade procedures.
Figure 78 Prepare for maintenance overview
Warning: Maintain a current backup of your system.
When you replace the hard disk, you must restore the Business Communications Manager
system programming from the backup.
Caution: Do not use an electric or magnetized screwdriver near the hard disk. You can
lose the information stored on the disk. Shock can damage the hard disk. Do not drop or
hit the hard disk drive.
Warning: You must remove all of the connections to the Business Communications
Manager base function tray before you power the system down.
Failure to disconnect lines before power down can cause damage to the system.
Warning: Protect the hardware components against damage from electro-static
discharge. Always wear a ground wriststrap before you handle components. Always place
the components in static-free container.
Use Unified
Manager to
shut down
software
Disconnect cables
from the front of
the server and
expansion unit
Remove AC power
plugs from both
units
Remove from rack
or wall.
Place on
static-free surface
Remove the top
from the unit
Perform
maintenance/
upgrade
procedure
Restore power
to the units
Reconnect
cables to the
front of the units
Test system
functions