Automatic Storage Management (ASM)
This chapter covers the Automatic Storage Management (ASM) feature introduced in Oracle Database 10g, for efficient management of disk drives with round-the-clock (24×7) availability. ASM simplifies disk-space management by creating disk groups, which are comprised of disks and the files that reside on them. Using ASM, the DBA needs to manage a smaller number of disk groups. All you have to do for disk management is to allocate disks to Oracle with your preferences for striping and mirroring using templates and let the database handle the storage-management issues.
ASM helps resolve the routine disk-management problems of large Oracle databases. It also manages disks across multiple nodes of a cluster in RAC ...
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