How you can provision storage in Cloud Manager

Cloud Manager makes storage provisioning for ONTAP Cloud easy by purchasing disks and managing aggregates for you. You simply need to create volumes. You can use an advanced allocation option to provision aggregates yourself, if desired.

How Cloud Manager provisions storage using the simple provisioning option

Aggregates provide cloud storage to ONTAP Cloud volumes. Cloud Manager creates aggregates for you when you launch an instance, and when you provision additional volumes by clicking the new volume icon Screen shot: Shows the create new volume icon..

When you create a volume, Cloud Manager does one of three things:

Cloud Manager determines where to place a new volume by looking at several factors: an aggregate's maximum size, whether thin provisioning is enabled, an aggregate's free space threshold (10 percent by default), and an aggregate's overcommitment threshold (500 percent by default).
Note: The Cloud Manager Admin can modify these thresholds.

Modifying aggregate capacity thresholds

The size of the volume that you can create largely depends on whether you enable thin provisioning. For example, if you create a volume using the Highest Performance usage profile, which does not enable thin provisioning, the maximum size for the volume is approximately 1.51 TB. This is because 12 to 14 percent of the new aggregate's capacity is reserved for overhead and 10 percent is reserved for free space. If you want to create a larger volume, you either need to choose a profile that enables thin provisioning, or you need to create an aggregate yourself, which enables you to add up to six disks in an aggregate and use disks larger than 500 GB.

How you can provision storage using the advanced allocation option

Rather than let Cloud Manager manage aggregates for you, you can do it yourself. From the Advanced allocation page, you can create new aggregates that contain up to six disks, add disks to an existing aggregate, and create volumes in specific aggregates.

The benefit in managing aggregates yourself is that you can choose an underlying disk size that is different from the default size. Note that all disks in an aggregate must be the same size.