Windows 2008 R2 – WMI Quota issue caused by either a WMI leak or an application overallocating WMI memory

 I- Default WMI memory quotas for Windows 2008 R2: Memory Per Host:  536870912 Handles Per Host:  4096 Memory All Hosts:  1073741824 Process Limit All Hosts:  32 Threads Per Host:  256 To check what is the current ones on any Windows 2003 and up servers, you can use the following script, and pipe one or more servers on … Continue reading Windows 2008 R2 – WMI Quota issue caused by either a WMI leak or an application overallocating WMI memory

Exchange 2010 – Enabling an Autoreply Message (Out Of Office) using the Exchange Management Shell (Powershell)

  Here is how to test it on a user first. 1> Using powershell, do a $objMailbox = Get-Mailbox Some_Test_User to get the user we will assign the Out Of Office to. 2> Now define your text (best is to do it in HTML) and store it on 2 variables $InternalMsg and $ExternalMsg like in … Continue reading Exchange 2010 – Enabling an Autoreply Message (Out Of Office) using the Exchange Management Shell (Powershell)

How-to procedure – Exchange 2010 SP1+ – Enabling and Troubleshooting Calendar Repair Assistant

  Did you ever have users complaining that meetings didn’t show up for some attendees ? Or a boss scheduling a meeting, and the meeting disappears from his calendar ?   How-To procedure - Exchange Server 2010 SP1 - Operations - Enable Calendar Repair Assistant.pdf   Note: if the Calendar Repair Assistant has to do … Continue reading How-to procedure – Exchange 2010 SP1+ – Enabling and Troubleshooting Calendar Repair Assistant

How-To procedure – Exchange 2010 – > SP1 (as well as Exchange 2013 !!) – DAC mode and new DR commandlets … activate DAC mode and update your DR procedures !

  Since Exchange 2010 SP1, you can enable DAC mode (Datacenter Activation Coordination) even if you have a DAG on a single AD site. Lots of people are not aware that DAC mode not only helps preventing split brain scenario using a smart and simple mechanism (“hello I’m there and I’ve mounted databases” bit, and … Continue reading How-To procedure – Exchange 2010 – > SP1 (as well as Exchange 2013 !!) – DAC mode and new DR commandlets … activate DAC mode and update your DR procedures !

How-To procedure – Exchange 2010 – all SPs – After CAS array setup : do not forget to update this Database property !

  Even if you have your CAS Array already established, double check the RPCClientAccessServer attribute on all your databases ! Experience show that on 80% cases, customers still have the wrong value for some databases…   How-to procedure - Exchange Server 2010 SP1 - Operations - Updating servers from a DAG.pdf

Exchange 2010–(really) quick note about some logs useful to collect

  CAS : RCA logs (for RPC Client Access logs) Program FilesMicrosoftExchange ServerV14LoggingRPC Client AccessNote that you’ll find lots of other useful logs there such as the AddressBook Service logs, the migration logs, and other ones that you may need for deeper troubleshooting.  HUB : Connectivity logs Program FilesMicrosoftExchange ServerV14TransportRolesLogsConnectivityCONNECTLOGxxxxxxxx-x.LOG)  All Roles: Our traditional Application … Continue reading Exchange 2010–(really) quick note about some logs useful to collect