About disk management

About disks

Removable disks and disks that you add are in disk shelves that are connected to the filer. For the latest information on supported disk drives, see the Data ONTAP Release Notes and the System Configuration Guide.

Three kinds of disks are available for the filer's file system:

• Data 

Holds data stored on behalf of clients and data generated about the state of the filer as a result of a malfunction.

• Hot spare 

Does not hold usable data, but is available for addition to an aggregate. (You can also add a hot spare disk to an aggregate by adding the disk to a traditional volume contained by the aggregate.)

• Parity 

Stores data reconstruction information.