unrestored log?

  • Hi,

    Principal server mirroring monitor history logs (intervel time every 3 min)

    Unsent Log 7588 KB

    unrestored log 600 KB

    Mirror over head - 40 Milliseconds

    Next intervel time those are 0 kb, 0 millseconds,

    Does it means everything restored at mirror database?

  • ananda.murugesan (9/17/2012)


    Hi,

    Principal server mirroring monitor history logs (intervel time every 3 min)

    Unsent Log 7588 KB

    unrestored log 600 KB

    Mirror over head - 40 Milliseconds

    Next intervel time those are 0 kb, 0 millseconds,

    Does it means everything restored at mirror database?

    What does the mirroring status tell you on each occasion for the principal and mirror?

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" 😉

  • What does the mirroring status tell you on each occasion for the principal and mirror?

    Every occasion for the principal & mirror server status is sychcronized mode.

  • The unrestored log is the portion of the log at the mirror server that has not yet been replayed against the mirror database. Everything's been send across (it is synchronised mirroring), the replay is just very slightly behind. At 600k, I wouldn't worry, that shouldn't take more than a few seconds to replay if/when a failover occurs.

    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
  • ok, SQL agent side mirror logs jobs running every 3 minites, I understod the next time intervel history logs display those were 0KB, 0 milliseconds, so everything restored at mirror database at next time sychronized . I don't want worry about it.

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