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What is the meaning of Redo Log file mirroring in SQL?

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What is the meaning of Redo Log file mirroring in SQL?
posted Oct 19, 2015 by Shivaranjini

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1 Answer

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The process of having a copy of redo log files is called mirroring.

It is done by creating group of log files together. This ensures that LGWR automatically writes them to all the members of the current on-line redo log group.
- In case a group fails, the database automatically switches over to the next group. It diminishes the performance.

answer Oct 22, 2015 by Manikandan J
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