Storage limits for Cloud Volumes ONTAP 9.6 in Azure

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Cloud Volumes ONTAP has storage configuration limits to provide reliable operations. For best performance, do not configure your system at the maximum values.

Maximum system capacity by license

The maximum system capacity for a Cloud Volumes ONTAP system is determined by its license. The maximum system capacity includes disk-based storage plus object storage used for data tiering. NetApp doesn’t support exceeding this limit.

License Maximum system capacity (disks + object storage)

Explore

2 TB (data tiering is not supported with Explore)

Standard

10 TB

Premium

368 TB

BYOL

368 TB per license

For HA, is the license capacity limit per node or for the entire HA pair?

The capacity limit is for the entire HA pair. It is not per node. For example, if you use the Premium license, you can have up to 368 TB of capacity between both nodes.

Disk and tiering limits by VM size

The disk limits below are specific to disks that contain user data. The limits do not include the boot disk and root disk. The tables below show the maximum system capacity by VM size with disks or alone, and with disks and cold data tiering to object storage.

Disk limits are shown by VM size for Premium and BYOL licenses only because disk limits can’t be reached with Explore or Standard licenses due to system capacity limits.

  • Single node systems can use Standard HDD Managed Disks, Standard SSD Managed Disks, and Premium SSD Managed Disks, with up to 32 TB per disk. The number of supported disks varies by VM size.

  • HA systems use Premium page blobs as disks, with up to 8 TB per page blob. The number of supported disks varies by VM size.

Single node with a Premium license

VM size Max disks per node Max system capacity with disks alone Max system capacity with disks and data tiering

DS3_v2

15

368 TB

Tiering not supported

DS4_v2

31

368 TB

368 TB

DS5_v2

63

368 TB

368 TB

DS13_v2

31

368 TB

368 TB

DS14_v2

63

368 TB

368 TB

DS15_v2

63

368 TB

368 TB

Single node with one or more BYOL licenses

For some VM types, you’ll need several BYOL licenses to reach the max system capacity listed below. For example, you’d need 6 BYOL licenses to reach 2 PB with DS5_v2.
VM size Max disks per node Max system capacity with one license Max system capacity with multiple licenses

Disks alone

Disks + data tiering

Disks alone

Disks + data tiering

DS3_v2

15

368 TB

Tiering not supported

480 TB

Tiering not supported

DS4_v2

31

368 TB

368 TB

992 TB

368 TB x each license

DS5_v2

63

368 TB

368 TB

2 PB

368 TB x each license

DS13_v2

31

368 TB

368 TB

992 TB

368 TB x each license

DS14_v2

63

368 TB

368 TB

2 PB

368 TB x each license

DS15_v2

63

368 TB

368 TB

2 PB

368 TB x each license

HA pairs with a Premium license

VM size Max disks per node Max system capacity with disks alone Max system capacity with disks and data tiering

DS4_v2

31

368 TB

368 TB

DS5_v2

63

368 TB

368 TB

DS13_v2

31

368 TB

368 TB

DS14_v2

63

368 TB

368 TB

DS15_v2

63

368 TB

368 TB

HA pairs with one or more BYOL licenses

For some VM types, you’ll need several BYOL licenses to reach the max system capacity listed below. For example, you’d need 3 BYOL licenses to reach 1 PB with DS5_v2.
VM size Max disks per node Max system capacity with one license Max system capacity with multiple licenses

Disks alone

Disks + data tiering

Disks alone

Disks + data tiering

DS4_v2

31

368 TB

368 TB

496 TB

368 TB x each license

DS5_v2

63

368 TB

368 TB

1 PB

368 TB x each license

DS13_v2

31

368 TB

368 TB

496 TB

368 TB x each license

DS14_v2

63

368 TB

368 TB

1 PB

368 TB x each license

DS15_v2

63

368 TB

368 TB

1 PB

368 TB x each license

Aggregate limits

Cloud Volumes ONTAP uses Azure storage as disks and groups them into aggregates. Aggregates provide storage to volumes.

Parameter Limit

Maximum number of aggregates

Same as the disk limit

Maximum aggregate size

352 TB of raw capacity for single node 1, 2
96 TB of raw capacity for HA pairs 1

Disks per aggregate

1-12 3

Maximum number of RAID groups per aggregate

1

Notes:

  1. The aggregate capacity limit is based on the disks that comprise the aggregate. The limit does not include object storage used for data tiering.

  2. The 352 TB limit is supported starting with 9.6 P3. Releases prior to 9.6 P3 support up to 200 TB of raw capacity in an aggregate on a single node system.

  3. All disks in an aggregate must be the same size.

Logical storage limits

Logical storage Parameter Limit

Storage virtual machines (SVMs)

Maximum number for Cloud Volumes ONTAP
(HA pair or single node)

One data-serving SVM and one destination SVM used for disaster recovery. You can activate the destination SVM for data access if there’s an outage on the source SVM. 1

The one data-serving SVM spans the entire Cloud Volumes ONTAP system (HA pair or single node).

Files

Maximum size

16 TB

Maximum per volume

Volume size dependent, up to 2 billion

FlexClone volumes

Hierarchical clone depth 2

499

FlexVol volumes

Maximum per node

500

Minimum size

20 MB

Maximum size

Azure HA: Dependent on the size of the aggregate 3
Azure single node: 100 TB

Qtrees

Maximum per FlexVol volume

4,995

Snapshot copies

Maximum per FlexVol volume

1,023

Notes:

  1. Cloud Manager does not provide any setup or orchestration support for SVM disaster recovery. It also does not support storage-related tasks on an additional SVM. You must use System Manager or the CLI for SVM disaster recovery.

  2. Hierarchical clone depth is the maximum depth of a nested hierarchy of FlexClone volumes that can be created from a single FlexVol volume.

  3. Less than 100 TB is supported for this configuration because aggregates on HA pairs are limited to 96 TB of raw capacity.

iSCSI storage limits

iSCSI storage Parameter Limit

LUNs

Maximum per node

1,024

Maximum number of LUN maps

1,024

Maximum size

16 TB

Maximum per volume

512

igroups

Maximum per node

256

Initiators

Maximum per node

512

Maximum per igroup

128

iSCSI sessions

Maximum per node

1,024

LIFs

Maximum per port

32

Maximum per portset

32

Portsets

Maximum per node

256