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RAID and multiplexing

Which raid level of hard disk should we use when multiplexing in Oracle9i?
 

RAID does not support multiplexing. RAID 1, however, does support mirroring. Mirroring and multiplexing are two different animals. In mirroring, you have two copies of the same datafile, stored on two different disks. In multiplexing, you have more than one copy of the same information, but they are stored in different datafiles. Control files and online redo logs should be multiplexed. They can be mirrored, but they should always be multiplexed.

 

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This was last published in December 2002

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