Operating System Overview; Memory Failures - HP Visualize J2240 Service Handbook

Operating System Overview

This workstation uses the HP-UX operating system, version 10.20 and later. Instant
Ignition systems (systems with preloaded software) have X-windows and the
Hewlett-Packard HP VUE 3.0 graphical user interface installed and configured. See
the user's guide for more information.
To verify which version of the operating system you are running, use the following
command in a terminal window:
# grep fv /system/UX-CORE/index
If you're running HP-UX 10.20 , the result from this command will be:
fv: A.B.10.20.1M
For problems or questions with Instant Ignition, refer to Using Your HP Workstation
for more information.

Memory Failures

The J Class system (with HP-UX 10.20 and later) uses Memory Page Deallocation, a
feature that allows the system to provide information to the operating system about
memory failures.
You can use the command memrpt with the detail switch to obtain information
about the Memory Page Deallocation Table (PDT) as well as single bit errors logged
by the system.
# /usr/sbin/sysdiag
DUI >logtool
Enter
LOGTOOL> memrpt detail
The pdt can also be checked using the pdt command in the Service menu of the boot
console handler (Refer to Chapter 9). If a failing DIMM is replaced, use the Service
menu pdt clear command to clear out the PDT.
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