Troubleshooting and Limitations – Microsoft Exchange Server by WMI Discovery

This section describes troubleshooting and limitations for Microsoft Exchange by WMI discovery.

Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Administrative Group Limitation.

If an Administrative group does not contain any Exchange servers or folder trees, the Administrative group is not discovered.

Error Messages

Error message	Reason	Solution
Failed to obtain host name	To model Exchange topology correctly, the Microsoft Exchange Connection by WMI job should know the name of the host to which it is connected. DFM tries to retrieve the host_hostname attribute of the host, matched by the input query. If the attribute is not set, DFM runs the following WMI query to obtain the domain name of the host: `SELECT Name FROM Win32_ComputerSystem` If this query fails for any reason, the job also fails with this error message.	Run any job that will retrieve the correct host name. Set the host name manually. Refer to the log files for more information as to why the WMI query for host name failed.
Failed to discover folder trees and public folders		Check if the credentials you use for connection match those described in Prerequisite - Set up protocol credentials.

Error
message

Reason

Solution

Failed to obtain host name

To model Exchange topology correctly, the Microsoft Exchange Connection by WMI job should know the name of the host to which it is connected.

DFM tries to retrieve the host_hostname attribute of the host, matched by the input query. If the attribute is not set, DFM runs the following WMI query to obtain the domain name of the host:

SELECT Name FROM Win32_ComputerSystem

If this query fails for any reason, the job also fails with this error message.

Run any job that will retrieve the correct host name.
Set the host name manually.
Refer to the log files for more information as to why the WMI query for host name failed.

Failed to discover folder trees and public folders

Check if the credentials you use for connection match those described in Prerequisite - Set up protocol credentials.