Nortel North American DMS-100 Instruction Manual page 127

1-112 Trouble locating and clearing procedures (continued)
Replacing a 14-in. disk drive unit
Summary of Replacing a 14-in. disk drive unit
Manually busy
DDU controller
Disconnect the
DDU
Pull DDU clear
of frame (needs
two persons)
Connect the
new DDU
Push new DDU
back into frame
(needs two
persons)
Allocate disk
space
Test the
controller
297-8021-544 Standard 14.02 May 2001
(continued)
Return the DDU
to service
End
This flowchart summarizes the
procedure.
Use the instructions that follow
this flowchart to perform the
procedure.