Can anyone tell me what this error means? I've been tasked with taking over our SCOM environment and I've never used this product before. The PowerShell script failed with below exception System.Management.Automation.CmdletInvocationException: Exception calling ".ctor" with "3" argument(s): "Input string was not in a correct format." At line:57 char:33 + $diskFreePercentage = New-Object <<<< System.Diagnostics.PerformanceCounter("LogicalDisk", "% Free Space", $DeviceID) at System.Management.Automation.Internal.PipelineProcessor.SynchronousExecuteEnumerate(Object input, Hashtable errorResults, Boolean enumerate) at System.Management.Automation.Parser.PipelineNode.Execute(Array input, Pipe outputPipe, ArrayList& resultList) at System.Management.Automation.Parser.PipelineNode.Execute(Array input, Pipe outputPipe) at System.Management.Automation.Parser.AssignmentStatementNode.Execute(Array input, Pipe outputPipe) at System.Management.Automation.Parser.StatementListNode.Execute(Array input, Pipe outputPipe, ArrayList& resultList) Script Name: DiskFree One or more workflows were affected by this. Workflow name: Microsoft.Exchange2007.DiskFree.MailboxDB.Monitor Instance name: MDB Disk T:\SG1-DB (MYSERVER.mydomain.com) Instance ID: {03A62480-38B5-4A4F-258A-25F05553988A} Management group: GROUP1

From the message - the managemnt pack is the exchange 2007 MP Microsoft.Exchange2007.DiskFree.MailboxDB.Monitor You should check to see if that rule has an override that is improperly formatted or set up. Setting up a mailbox monitor takes specific steps with user input. If the details that were input were not formatted correctly, you could get this error. Microsoft Corporation

Hi, I too get the same error. when i checked the health explorer, i couldn't find anything with respect to the alert. Can you please guide me how to fix this alert? Suguna--