Specifications

DAT DRIVE
9.4 DAT Replacement
3/96 Application Module
X
Service 107
Honeywell Inc.
9.4 DAT Replacement
Overview
Node power must be turned off for the purpose of changing circuit boards
in the A
X
M node.
Locating
shutdown
procedure
Software shutdown procedures for both the A
X
M coprocessor and node
processor are documented in the Application Module
X
System
Administration manual.
Replacement
procedure
The following procedure outlines the steps that are required to replace a
DAT drive.
W
W
A
A
R
R
N
N
I
I
N
N
G
G
Damage can result— Circuit board damage can result if you
do not practice proper ESD procedures or attempt to remove/
insert a circuit board with node power applied.
CAUTION
Mandatory steps— It is mandatory that appropriate software
shutdown procedures are followed for the AXM coprocessor
prior to removing power from the node.
Failure to do so can cause damage to the HP-UX file
structure on the coprocessor hard disk.
ATTENTION
It is also highly recommended that you perform a node
processor software shutdown when preparing to power off
the AXM node. This provides for an orderly departure from
the LCN network.
Table 9-3 DAT Replacement Procedure
Step Action
1 Perform an orderly shutdown of the coprocessor HP-
UX software.
2 Perform an orderly shutdown of the A
X
M node
processor using the Node Status display. This
includes performing a checkpoint save, if required.
3 Power off the A
X
M node power supply.
4 Remove the appropriate console furniture
components to allow access to the DAT device.
Access is from the rear for Classic console furniture
and from the front for Ergonomic console furniture.