Skip to main content

Object limits for ONTAP consistency groups

Contributors netapp-ahibbard netapp-aherbin netapp-lenida
PDFs

When planning and managing your consistency groups, account for object limits at the scope of both the cluster and the parent or child consistency group.

Enforced limits

The following table captures limits for consistency groups. Separate limits apply for consistency groups using SnapMirror active sync. For more information, see SnapMirror active sync limits.

Limit

Scope

Minimum

Maximum

Number of consistency groups

Cluster

0

  • If SnapMirror active sync is not enabled, same as maximum volume count in cluster

  • If SnapMirror active sync is enabled, 50 consistency groups

Number of parent consistency groups

Cluster

0

Same as maximum volume count in cluster

Number of individual and parent consistency groups

Cluster

0

Same as maximum volume count in cluster

Number of volumes in a consistency group

Single consistency group

1 volume

  • In ONTAP 9.20.1 and later: 256 volumes

  • In ONTAP 9.19.1 and earlier: 80 volumes

Number of volumes in a consistency group with SnapMirror asynchronous

Single consistency group

1 volume

  • In ONTAP 9.15.1 and later: 80 volumes

  • In ONTAP 9.13.1 and 9.14.1: 16 volumes

Number of volumes in the child of a parent consistency group

Parent consistency group

1 volume

  • In ONTAP 9.20.1 and later: 256 volumes

  • In ONTAP 9.19.1 and earlier: 80 volumes

Number of volumes in a child consistency group

Child consistency group

1 volume

  • In ONTAP 9.20.1 and later: 256 volumes

  • In ONTAP 9.19.1 and earlier: 80 volumes

Number of child consistency groups in a parent consistency group

Parent consistency group

1 consistency group

  • In ONTAP 9.20.1 and later: 64 consistency groups

  • In ONTAP 9.19.1 and earlier: 5 consistency groups

Number of SVM disaster recovery relationships where a consistency group exists (available beginning ONTAP 9.14.1)

Cluster

0

32

Unenforced limits

The minimum supported snapshot schedule for consistency groups is 30 minutes. This is based on testing for FlexGroup volumes, which share the same Snapshot infrastructure as consistency groups.