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Thread: RAC Instance recovery using Past Image

  1. 08-22-2008, 02:39 AM #1
    malru
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    RAC Instance recovery using Past Image

    Hi,

    How recovery will take place if the instance/node having the latest Past Image(PI) of the blocks got crashed?

    Thanks..
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  2. 08-22-2008, 03:37 AM #2
    pando
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    Past Image is used by that instance to make faster instance recovery when other nodes which hold later version dies.

    If the instance holding the PI is dead then it does not matter it will be able to recover using redo logs.
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  3. 08-22-2008, 04:51 AM #3
    malru
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    Thanks Pando.

    May I know using which information in redo log, Oracle will start to recover
    the datafiles?

    Thanks..
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  4. 08-23-2008, 05:56 PM #4
    pando
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    I dont understand the question...
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  6. 08-24-2008, 01:27 PM #5
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    PAVB
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    Quote Originally Posted by malru
    May I know using which information in redo log, Oracle will start to recover the datafiles?
    That would be the appropriate group of change vectors.
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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