806 trace flag

  • what is the good,bad and ugly part of 806 trace flag?Will the database performance be slow if i enable in my production

  • Why are you considering enabling traceflag 806? On whose advice with what reason? What do you think it does?

    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
  • there is database corruption. the IO system is robust

  • You don't want to turn it on unless you're *not* covered by page checksums already. It's going to vastly slow down reads while it does the extra auditing.

    No problem if you want to turn it on, I've discussed this trace flag publicly in sessions at TechEd in 2007, just don't leave it on permanently.

    Paul Randal
    CEO, SQLskills.com: Check out SQLskills online training!
    Blog:www.SQLskills.com/blogs/paul Twitter: @PaulRandal
    SQL MVP, Microsoft RD, Contributing Editor of TechNet Magazine
    Author of DBCC CHECKDB/repair (and other Storage Engine) code of SQL Server 2005

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