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Help to understand the difference RRS feed

  • Question

  • Please forgive me for my English 
    I learn DPM 2012 
    And I have a question what is the difference between File Recovery points and Express Full Back UP 
    1. They both work as both incremental back up? Recovery Points or works as a differential back up and Express Full Back Up as incremental back up. 
    What is the difference between them? 

    For quite a long time I can not find the answer to your question 
    Thanks in advance for your reply
    Friday, March 21, 2014 8:41 AM

Answers

  • Hi,

    For file protection (volume and shares and Client) there are two job types.

    A) synchronization = this brings over changed file data and applies them to the replica.  These synchronizations are not recoverable from recovery tab.  It controls how often you want to update the replica - the more frequent the synchronizations, the less risk of data loss should the protected volume or server fail.

    B) Recovery point - This is a VSS snapshot of the replica and represents a recovery point that you can recover data from.  No data is xfered when a recovery point is made. There is a 64 snapshot limit for file data.  You can make a manual recovery point without synchronization in between scheduled recovery points so you can recover data from the last successful synchronization.

    For application data that support incremental backups (exchange, SQL Db's in full recovery mode) there are two job types.

    A) Synchronization - This is equivalent of an incremental backup and only brings over log changes.  Each incremental synchronization is equivalent to a recovery point.  Each incremental synchronization results in application log truncation which is performed by the application (SQL / Exchange)

     B) Express full - This is equivalent to FULL backup, however only brings over Database changed blocks and applies them to the replica volume then makes a snapshot  Each express full backup is recoverable.  Express full backups do not result in log truncation by the application.  There is a 512 snapshot limit for express full backups.

    For applications that do not support incremental backups (SharePoint, SQL Db's in simple recovery mode, Hyper-V VMs)  always use express full backups.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.


    Friday, March 21, 2014 9:04 PM
    Moderator

All replies

  • Hi,

    For file protection (volume and shares and Client) there are two job types.

    A) synchronization = this brings over changed file data and applies them to the replica.  These synchronizations are not recoverable from recovery tab.  It controls how often you want to update the replica - the more frequent the synchronizations, the less risk of data loss should the protected volume or server fail.

    B) Recovery point - This is a VSS snapshot of the replica and represents a recovery point that you can recover data from.  No data is xfered when a recovery point is made. There is a 64 snapshot limit for file data.  You can make a manual recovery point without synchronization in between scheduled recovery points so you can recover data from the last successful synchronization.

    For application data that support incremental backups (exchange, SQL Db's in full recovery mode) there are two job types.

    A) Synchronization - This is equivalent of an incremental backup and only brings over log changes.  Each incremental synchronization is equivalent to a recovery point.  Each incremental synchronization results in application log truncation which is performed by the application (SQL / Exchange)

     B) Express full - This is equivalent to FULL backup, however only brings over Database changed blocks and applies them to the replica volume then makes a snapshot  Each express full backup is recoverable.  Express full backups do not result in log truncation by the application.  There is a 512 snapshot limit for express full backups.

    For applications that do not support incremental backups (SharePoint, SQL Db's in simple recovery mode, Hyper-V VMs)  always use express full backups.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.


    Friday, March 21, 2014 9:04 PM
    Moderator
  • Many thanks for your reply
    • Edited by TopchievDA Monday, March 24, 2014 5:54 AM
    Monday, March 24, 2014 5:54 AM