![]() ![]() > Mirroring level is into Allocation Unit size (AU is the smallest unit in ASM) (1MB by default), opposed to other vendors that do it at the disk level. > Unlike other vendors, hot spare disks are not required for mirroring, the thing provides more efficient use of the storage capacity. > Adding a new disk to the diskgroup will not only increase the space but will improve the throughput of that diskgroup. > Provides MIRRORING & STRIPPING in the same time for all data across all disks, without any additional work by the DBA. I'll illustrate "Why ASM?" through Pro's & Con's approach to show you the full image and let you easily judge ASM. In this post I'll try to provide a brief summary for a huge topic like Automatic Storage Management (ASM), hopefully the reader find it useful in understanding ASM.Īutomatic Storage Management ( ASM) is a new feature in Oracle 10g onward provides a state of the art storage for Oracle database files.
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