System Administration

61

Troubleshooting WSUS in Standalone Mode

WSUS provides a log for troubleshooting issues related to software updates. This log is located on the thin client, in the directory: C:\windows\windowsupdate log. This log displays all communications between the client and the server. You can use PERFMON to monitor memory allocation for the WSUS client web services component and WSUS server web services component of the update log.

Note

Alternatively, you can use a network monitoring or packet sniffing tool to monitor the traffic between the client and the server.

Table 2 shows the WSUS log format with some examples.

Table 2 WSUS Log Format

Date

Time

PID

TID

Component

Text

2005-06-01

18:30:03

992

810

Misc

= Logging initialized

 

 

 

 

 

 

2005-06-01

18:30:03

992

810

Misc

= Process

 

 

 

 

 

 

2005-06-01

18:30:03

992

810

Misc

= Module

 

 

 

 

 

 

Table 3 lists the components that can write to the WSUS log.

Table 3 WSUS Components

Component

Description

AGENT

Windows Update agent

 

 

AU

Automatic Updates is performing this task

 

 

AUCLNT

Interaction by AU with the logged on user

 

 

CDM

Device Manager

 

 

CMPRESS

Compression agent

 

 

COMAPI

Windows Update API

 

 

DRIVER

Device driver information

 

 

DTASTOR

Handles database transactions

 

 

DWNLDMGR

Creates and monitors download jobs

 

 

EEHNDLER

Expression handler used to evaluate update applicability

 

 

HANDLER

Manages the update installers

 

 

MISC

General service information

 

 

OFFLSNC

Detect available updates when not connected to the network

 

 

PARSER

Parses expression information

 

 

PT

Synchronizes updates information to the local datastore

 

 

REPORT

Collects reporting information

 

 

SERVICE

Startup/Shutdown of the Automatic Updates service

 

 

SETUP

Installs new versions of the Windows Update client when

 

available

 

 

SHUTDWN

Install at shutdown feature

 

 

WUREDIR

Windows Update redirector files

 

 

WUWEB

Windows Update ActiveX control

 

 

Page 71
Image 71
Wyse Technology C90LE, R90L manual Troubleshooting Wsus in Standalone Mode, Wsus Log Format Date Time, Component Text