CHAPTER 3ASM Disks
The first task in building the ASM infrastructure is to discover and place (add) disks under ASM management. This step is best done with the coordination of storage and system administrators. In storage area network (SAN) environments, it is assumed that the disks are identified and configured correctly—that is, they are appropriately zoned or LUN-masked within the SAN fabric and can be seen by the OS.
ASM Storage Provisioning
Before disks can be added to ASM, the storage administrator needs to identify a set of disks or logical devices from a storage array. Note that the term disk is used loosely, as a disk can be any of the following:
An entire disk spindle
A partition of a physical disk spindle
An aggregation of several ...
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