Specifications

Hard Disk Drive Tray
5.12 Disk Drive/Drive Tray Replacement
3/96 Application Module
X
Service 77
Honeywell Inc.
Table 5-2 Drive Tray/Disk Drive Replacement Procedure
Step Action
1 Determine if the primary or optional second disk
drive is to be replaced.
2 If it is the optional second drive that is to be
replaced, use the proper software command to
unmount the drive (umount).
3 Perform a coprocessor software shutdown using
the appropriate software command.
Reference:>> A
X
M System Administration
manual , Shutting down HP-UX (Section 3.5).
4 Perform an A
X
M node processor shutdown from
the LCN AM Status display.
5 Perform a second A
X
M node processor shutdown
from the LCN AM Status display.
This makes the shutdown node appear as failed
and prevents the rest of the LCN nodes from
labeling it isolated.
6 Turn off power, using the switch on the A
X
M node
power supply after the yellow indicator on the
WSI2 board turns off.
7 Disconnect the SCSI interface cable from the
coprocessor free edge. (It runs between the
WSI2 and the drive tray above it.) It requires
removal of two Phillips screws securing the cable
strain relief bracket.
8 Remove the drive tray.
9 Remove the tray cover by removing three Phillips
screws and eight lock nuts.
10 Remove the power connector from the drive to be
replaced.
11 Remove the SCSI ribbon connector from the
drive to be replaced.
12 Remove the desired disk drive by removing 4
large drive mounting screws.
13 Ensure the replacement drive is pinned correctly.
14 Mount the replacement disk drive using the same
hardware that held the original drive.
15 Reconnect the drive cables removed in steps 5
and 6.