Performing ASM Operations
This section discusses the important ASM commands that will help you deploy databases using ASM files.
The CREATE DISK GROUP Command
The CREATE DISK GROUP command is used to create a disk group. The ASM instance will verify that the disk in a disk group is addressable and usable before it does any operations on it. It reads the first block of the disk to determine whether it belongs to a group and writes a header to disks not in any group.
When you issue the CREATE DISKGROUP command, ASM mounts the disk group for the first time and adds the disk-group name to the ASM_DISKGROUPS initialization parameter in SPFILE. If you are using the initSID.ora file and need the disk group to be automatically mounted at startup, you ...
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