Storage limits

There are limits for storage objects that you should consider when planning and managing your storage architecture.

Limits are listed in the following sections:

Storage limits for Cloud Volumes ONTAP are documented in the Cloud Volumes ONTAP Release Notes.

Volume limits

Storage object Limit Native storage Storage arrays Data ONTAP Edge
Array LUNs Minimum size for root volume 1 N/A Model-dependent N/A
Files Maximum size 16 TB 16 TB 16 TB
Maximum per volume3 Volume size dependent, up to 2 billion Volume size dependent, up to 2 billion Volume size dependent, up to 2 billion
FlexClone volumes Hierarchical clone depth4 499 499 499
FlexVol volumes Maximum per node1 Model-dependent Model-dependent 200
Maximum per node per SVM5 Model-dependent Model-dependent 200
Minimum size 20 MB 20 MB 20 MB
Maximum size1 Model-dependent Model-dependent Model-dependent
FlexVol root volumes Minimum size1 Model-dependent Model-dependent Model-dependent
LUNs Maximum per node5 Model-dependent Model-dependent 1,024
Maximum per cluster5 Model-dependent Model-dependent 1,024
Maximum per volume5 Model-dependent Model-dependent 512
Maximum size 16 TB 16 TB 16 TB
Qtrees Maximum per FlexVol volume 4,995 4,995 4,995
Snapshot copies Maximum per FlexVol volume or Infinite Volume6 255/1023 255/1023 255/1023
Volumes Maximum per cluster for NAS7 12,000 12,000 200
Maximum per cluster with SAN protocols configured8 Model-dependent Model-dependent 200

Notes:

  1. In ONTAP 9.3 and earlier, a volume can contain up to 255 Snapshot copies. In ONTAP 9.4 and later, a volume can contain up to 1023 Snapshot copies.
  2. Hardware Universe
  3. 2 billion = 2 × 10 to the 9th power.
  4. The maximum depth of a nested hierarchy of FlexClone volumes that can be created from a single FlexVol volume.
  5. This limit applies only in SAN environments.

    SAN Configuration Guide

  6. You can use a SnapMirror cascade deployment to increase this limit.
  7. Infinite Volumes do not count against this limit, but their constituent volumes do.
  8. Infinite Volumes do not count against this limit, but their constituent volumes do.

    SAN Configuration Guide

FlexClone file and FlexClone LUN limits

Limit Native storage Storage arrays Data ONTAP Edge
Maximum per file or LUN1 32,767 32,767 32,767
Maximum total shared data per FlexVol volume 640 TB 640 TB 100 TB

Note:

  1. If you try to create more than 32,767 clones, ONTAP automatically creates a new physical copy of the parent file or LUN.

    This limit might be lower for FlexVol volumes that use deduplication.