Saturday, March 16, 2013

WHAT IS AN ORACLE ASM




Earlier Oracle had to use either a file system or a
raw device to store its physical files

Things might become a little slow when it was using a file system as it has to
comply with file system standards and go through its buffering.

On the other hand ,Oracle was not able to keep multiple files in a raw device
like a file system would allow.(it will need multiple raw devices).


The solution :Write your own volume manager and own file system.

Oracle has is own file system storage solution called Oracle Automatic storage Management(ASM)


Oracle ASM is a volume manager which provides a special file system designed especially
for Oracle Databases.


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