2.2.6 Changing a Disk to Offline or Online

You can change an Oracle ASM disk to INACTIVE or ACTIVE.

1. Determine which disk you want offline or online in the Oracle ASM disk group.

   Query the V$ASM_DISK and V$ASM_DISKGROUP views on the Oracle ASM instance.

2. Use one of the following commands:

   • To make a disk inactive, use the following command:

     CellCLI> ALTER GRIDDISK gdisk_name INACTIVE
     

   • To make a disk active, use the following command:

     CellCLI> ALTER GRIDDISK gdisk_name ACTIVE
     

   As soon as the disk is online, the disk group is rebalanced.

Oracle ASM monitors the rebalance operation, and Oracle Exadata System Software sends an e-mail message when the operation is complete.

You can query the V$ASM_OPERATION view for the status of the rebalance operation.