best practices online redundant redologs

DBS Oracle under Unix without ASM

DBs some have oracle only available file system on the unix machine & have a single file redolog available online, I was wondering what would be the best practice them on redundant?

I know that if I have multiple oracle file systems, I can extend their there. but with a single file system, I can create a redolog more and put it on the same file system.

If you have a single file system or file systems normally makes no difference, but it is rather the disc behind the file systems that count. If two file systems are spread among the same disc which buy you two file systems. Oracle recommends that you multiplex online redo log files I know a shop that works with a single non-multiplied set of newspapers in restoration online and in 15 years they have never lost a. They use mirrored disks.

It comes down to performance vs risk. What is the risk of losing a redo online newspapers verse how a load of performance having a cost fixed multiplex.

HTH - Mark D Powell.

Tags: Database

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    Published by: Stuart Fleming on May 20, 2012 05:25

    Published by: Stuart Fleming on May 20, 2012 05:27

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    Kind regards

    CM.

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