Full or Simple mode SQL backup

  • Hi,

    I have a couple of question regarding sql 2005/2008 RC backup's mode. New job and new rules here

    SQL backup's have 3 mode, Full, Differential and Tlog backup. All db's are in simple mode backup here. My questioin is, why should i use full mode not simple mode, in term of technolog accepts ? advantage or dis-advantage.

    Log error:

    Date2011-06-08 16:28:09

    LogSQL Server (Current - 2011-06-09 01:01:00)

    SourceBackup

    Message

    Database backed up. Database: LAX2, creation date(time): 2010/09/16(09:20:14), pages dumped: 219, first LSN: 156:214:37, last LSN: 156:230:1, number of dump devices: 1, device information: (FILE=1, TYPE=VIRTUAL_DEVICE: {'Legato#a0e850c8-4e2f-4b4d-b470-4db5ad89f2c6'}). This is an informational message only. No user action is required.

    Please, let me know and thnx

  • Please read through this - Managing Transaction Logs[/url]

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • Kahn

    Gail already given the log file management.

    Also,read the post which will help you to understand the backups and models advantage and disadvantage.

    SQL server Recovery Models and Backup types [/url]

    Muthukkumaran Kaliyamoorthy
    https://www.sqlserverblogforum.com/

  • Thanks to all.

    Special Thanks to Gail Shaw (Gail is best dude)

  • SQL Server has three recovery models:

    Simple: This model minimally logs most transactions.

    Full: logs all transactions an retains all the transaction log records until after they're backed up.

    Bulk-Logged: minimally logs bulk operations, such as index creation, bulk inserts, etc.

    How you combine any of these models with full or differential backups will determine how precise your backup could be.

  • AlexGreen (6/17/2011)


    SQL Server has three recovery models:

    Simple: This model minimally logs most transactions.

    Simple minimally logs the same operations that bulk-logged minimally logs. The difference is that log records are inactive after a checkpoint, not a log backup

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • I got some help from this post and discussion. Thank you.

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