ACHUTHAN MUGUNTHARAJAN BLOG (AC BLOG) https://docs.microsoft.com/archive/blogs/achu/feed.xml Lets know more about Exchange Wed, 17 Apr 2019 03:42:58 GMT en-US hourly 1 FID MAPPING ACTIVESYNC https://docs.microsoft.com/archive/blogs/achu/fid-mapping-activesync Mon, 26 Sep 2016 09:02:39 GMT https://blogs.technet.microsoft.com/achu/?p=35 Get-ExchangeDiagnosticInfo -Server <server name> -Process MSExchangeSyncAppPool -Component GetSyncState -Argument "EmailAddress=user@domain.com;DeviceId=<you can obtain this form get-mobile device>;DeviceType=<you can obtain this form get-mobile device>;FidMapping You should get a result similar to this : =========================== RunspaceId : Result     : <Diagnostics> <ProcessInfo> <id>33384</id> <serverName></serverName> <startTime>2015-12-23T09:30:00.3149733Z</startTime> <currentTime>2015-12-23T15:45:47.9874851Z</currentTime> <lifetime>06:15:47.6725118</lifetime> <threadCount>218</threadCount> <handleCount>3651</handleCount> <workingSet>482.6 MB (506,040,320 bytes)</workingSet> </ProcessInfo> <Components> <GetSyncState> <GetSyncStateResult xmlns:xsd="https://www.w3.org/2001/XMLSchema" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" LoggingEnabled="true"> <Devices> <DeviceData Name="" Created="0001-01-01T00:00:00"> <SyncFolders> <SyncStateFolderData> <Name>FolderIdMapping</Name> <Created>2015-10-21T03:12:44.3953904Z</Created> <StorageType>Item</StorageType> <SyncStateBlob></SyncStateBlob> <SyncStateSize>899</SyncStateSize> <FolderMapping> <FolderMappingData Name="Calendar" FolderType="Calendar"> <ShortId>1</ShortId> <LongId>LgAAAAD7lNExwzLWEZ2nAFCLXgP6AQAqZ5ZBIg2SRLPtKOkIwHueAAAGT6FUAAAC</LongId> </FolderMappingData> <FolderMappingData Name="Contacts" FolderType="Contacts"> <ShortId>2</ShortId> <LongId>LgAAAAD7lNExwzLWEZ2nAFCLXgP6AQCX0BrnLMbTEZ16AFCLXgP6AAANxX3OAAAD</LongId> </FolderMappingData> <FolderMappingData Name="Skype for Business Contacts" FolderType="QuickContacts"> <ShortId>3</ShortId> <LongId>LgAAAAD7lNExwzLWEZ2nAFCLXgP6AQCa6kLRujFPTKY7VGbz87FDAACwW3vvAAAD</LongId> </FolderMappingData> <FolderMappingData Name="Conversation History" FolderType="CommunicatorHistory"> <ShortId>4</ShortId> <LongId>LgAAAAD7lNExwzLWEZ2nAFCLXgP6AQC3BHhAl8lzTKF9MsSL0htpAAA4jgAWAAAB</LongId> </FolderMappingData> <FolderMappingData Name="Deleted Items" FolderType="DeletedItems"> <ShortId>5</ShortId> <LongId>LgAAAAD7lNExwzLWEZ2nAFCLXgP6AQCX0BrnLMbTEZ16AFCLXgP6AAANvsopAAAB</LongId> FolderMappingData Name="Drafts" FolderType="Drafts"> <ShortId>7</ShortId> <LongId>LgAAAAD7lNExwzLWEZ2nAFCLXgP6AQCX0BrnLMbTEZ16AFCLXgP6AAANxX3TAAAB</LongId> </FolderMappingData> <FolderMappingData Name="Inbox" FolderType="Inbox"> <ShortId>8</ShortId> </FolderMappingData> </FolderMapping> </SyncStateFolderData> </SyncFolders> </DeviceData> </Devices> </GetSyncStateResult> </GetSyncState> </Components> </Diagnostics> Identity   : IsValid     : True ObjectState : New ========================== Feel free to post your comments. AC]]> Mail.que growth https://docs.microsoft.com/archive/blogs/achu/mail-que-growth Mon, 26 Sep 2016 08:34:09 GMT https://blogs.technet.microsoft.com/achu/?p=25
  • The Safety net hold time is how long the message gets retained in the mail.que after the message gets delivered (this was introduced in 2013)
    • The size of the mail.que growth can be given by the formula:
    • Overall Transport DB Size = average message size x overall daily message traffic x (1 + (percentage of messages queued x maximum queue days) + Safety Net hold days) x 2 copies for high availability
      1. This must be divided further by the number of databases and their copy
      2. Comparing these parameters, you would understand how large the queue grows per day and whether it is normal or not.
      3. I would like to note a point out here after the mails in the mail.que get delivered it will not reduce in size only an offline defragment will reduce in size.
    So the next question that comes in is that if this eats my drive space faster how can i control the growth.
      1. You can control the growth of the mail.que by changing the parameter of safety net hold time in the transport configuration by using the set-transportconfig .(i would prefer a value of 2 days)
      2. Also you can change the online de-fragmentation schedule by changing the parameters in the Edgetransport.exe config file
      3. <add key="QueueDatabaseOnlineDefragSchedule" value="1:00:00" />
      4. <add key="QueueDatabaseOnlineDefragTimeToRun" value="3:00:00" />
    The above key signifies that every day run my online de-fragmentation for 3 hours If you still feel that this grows too much in size
      • One workaround to the problem is that you can pause the transport service and ensure that the queue is 0.
      • Then stop the transport service and delete the mail.que file and start the transport service.
      • This will create a new mail.que file and it will help in overcoming you issue
      • This can be done one server at a time hence has no downtime for creating a new mail.que.
      If you have any questions feel free to comment. AC              ]]>         Hello world! https://docs.microsoft.com/archive/blogs/achu/hello-world Mon, 26 Sep 2016 01:28:08 GMT https://blogs.technet.microsoft.com/achu/?p=1 Technet. This is your first post. Edit or delete it, then start blogging!]]>