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Express Full Backup in DPM server RRS feed

  • Question

  • I was going through the concept of Synchronization and Express Full Backup by reading a lot of questions in the forum. Got many clarity but Have little confusion when it comes to Express Full Backup.

    Synchronization which happens every 15 minutes or the time which you specify for the file level backup transfer only the changed block and update the replica in the DPM server.

    Q 1) When Express Full Backup is taken for Exchange, SQL : It takes a VSS Snapshot on the volume and then transfers only the blocks which have changed, does it updates the replica in the DPM server? or it keeps the data alongside?

    Q 2) Does it only takes the DB blocks which has changed or it takes the log files of the SQL and Exchange as well to DPM replica?

    Sunday, November 18, 2018 1:29 PM

Answers

  • The Express full backups are only conducive to data sources containing databases for example; Exchange, SQL and Sharepoint.

    The Express full backups apply block level changes to the DB files themselves, whereas synchronizations between express full backups only bring over the log files.

    For database protection, both the express full and the synchronization backups are recoverable from the recovery tab. Protection of file data does not have an express full backup type, they are solely synchronizations and recovery points.

    When it comes doen to the file data protection, only recovery points are recoverable from the recovery tab. 


    Blog: https://thesystemcenterblog.com LinkedIn:

    • Marked as answer by Qureshi Aquib Monday, November 19, 2018 9:23 AM
    Monday, November 19, 2018 7:40 AM

All replies

  • Hello!

    Q 1) When Express Full Backup is taken for Exchange, SQL : It takes a VSS Snapshot on the volume and then transfers only the blocks which have changed, does it updates the replica in the DPM server? or it keeps the data alongside?

    Answer 1)
    The replica is synchronized at regular intervals according to the settings that you configure. During synchronization data changes are transferred from the protected source to the DPM server and then applying those data changes on the replica in the pool.

    Q 2) Does it only takes the DB blocks which has changed or it takes the log files of the SQL and Exchange as well to DPM replica?

    Answer 2)
    For SQL Server databases, the synchronization transfers a transaction log backup, and recovery points are created for each incremental synchronization and express full backup. The transaction log is a serial record of all the transactions that have been performed against the database since the transaction log was last backed up.


    Express Full Backup in short

    During an Express Full Backup, DPM takes a snapshot of the replica before updating the replica with the changed blocks. 

    Best regards,
    Leon


    Blog: https://thesystemcenterblog.com LinkedIn:

    Sunday, November 18, 2018 4:16 PM
  • Thanks Leon,

    Both the answers which you've given was related to the synchronization which we configure for 15 minutes internal.

    Then what is the use of Express Full backup when if every synchronization which happens does creates a recovery point.

    Monday, November 19, 2018 6:50 AM
  • The Express full backups are only conducive to data sources containing databases for example; Exchange, SQL and Sharepoint.

    The Express full backups apply block level changes to the DB files themselves, whereas synchronizations between express full backups only bring over the log files.

    For database protection, both the express full and the synchronization backups are recoverable from the recovery tab. Protection of file data does not have an express full backup type, they are solely synchronizations and recovery points.

    When it comes doen to the file data protection, only recovery points are recoverable from the recovery tab. 


    Blog: https://thesystemcenterblog.com LinkedIn:

    • Marked as answer by Qureshi Aquib Monday, November 19, 2018 9:23 AM
    Monday, November 19, 2018 7:40 AM
  • Thanks Leon for the clarification.
    Monday, November 19, 2018 9:23 AM
  • You're most welcome!

    Blog: https://thesystemcenterblog.com LinkedIn:

    Monday, November 19, 2018 9:25 AM