You add disks to a storage system to increase the number of hot spares, to add space to an aggregate, or to replace disks.
Before You Begin
Before adding new disks to the storage system, be sure that the storage system supports the type of disk you want to add. For the latest information on supported disk drives, see the System Configuration Guide on the NOW site (now.netapp.com).
Steps
- Install one or more disks according to the hardware guide for your disk shelf or the hardware and service guide for your storage system.
For storage systems using software-based disk ownership, the new disks are not recognized until they are assigned to a system and pool. You can assign the new disks manually, or you can wait for Data ONTAP to automatically assign the new disks if your system follows the rules for disk autoassignment.
For storage systems using hardware-based disk ownership, Data ONTAP displays a message confirming that one or more disks were added and then recognizes the disks as hot spare disks.
- After the new disks have all been recognized, verify their addition, and (if your system is using software-based disk ownership) their ownership information, by entering the following command:disk show -v
You should see the new disks, owned by the correct system and in the correct pool, listed as hot spare disks.
- (Optional) You can zero the newly added disks now, if needed, by entering the following command:disk zero spares
Note: Disks that have been used previously in a Data ONTAP aggregate must be zeroed before they can be added to another aggregate. Zeroing the disks now can prevent delays in case you need to quickly increase the size of an aggregate. The disk zeroing command runs in the background and may take hours to complete depending on the number of unzeroed disks in the system.
The new disks are ready to be added to an aggregate, replace an existing disk, or remain available as hot spares.
