We came across an issue today where the following two alerts were exceeding there thresholds “”The AD General Response is above the configured threshold” and “AD Op Master response is above the configured threshold”. The DC in question was a x64 windows 2008 machine and interestingly enough we had x86 DC in the same site which did not exhibiy any of the issues.

 So we had a look at what version of oomads (AD Management Helper Objects) on the x64 DC only to find the x86 oomads installed , so we simply removed the x86 version and installed the x64 version of oomads and the  alerts just disappeared

Daniel Davies

When trying to create a new distribution group through EMC you may receive the following error message at the end of the wizard:

Error:
Couldn’t find object "UserAccount". Please make sure that it was spelled correctly or specify a different object. Reason: The recipient UserAccount isn’t the expected type.

Exchange Management Shell command attempted:
new-DistributionGroup -Name ‘test’ -Type ‘Distribution’ –OrganizationalUnit ‘OU’ -SamAccountName ‘test’ -Alias ‘test’

The reason for this is that when creating a Distribution Group it tries to add the mailbox of the user creating it as the manager of the Distribution Group and usually the Admin account that creates the Distribution Groups will not be Mailbox enabled.

To get around this you can use the New-DistributionGroup cmdlet with the ManagedBy Parameter:

new-DistributionGroup -Name ‘test‘ -Type ‘Distribution’ –OrganizationalUnit ‘YourDomain/Distribution Groups’ -SamAccountName ‘test’ -Alias ‘test’ –ManagedBy ‘MailboxEnabledAccount’

I recently needed to find out which memory slots where occupied on multiple machines. I found a command that allowed me to find this information without opening up a single computer case.

From a Command Prompt, run the following:

wmic MEMORYCHIP get banklabel, capacity, caption, devicelocator, partnumber

Hope you find this useful,