Limitations in all cloud providers
Known limitations identify platforms, devices, or functions that are not supported by this release of the product, or that do not interoperate correctly with it. Review these limitations carefully.
The following limitations apply to Cloud Volumes ONTAP in all cloud providers: AWS, Azure, and Google Cloud.
Maximum concurrent replication operations
The maximum number of concurrent SnapMirror or SnapVault transfers for Cloud Volumes ONTAP is 100 per node, regardless of the instance type or machine type.
Cloud provider snapshots must not be used for your backup and recovery plans
You shouldn’t use your cloud provider’s snapshots as part of your backup and recovery plan for Cloud Volumes ONTAP data. You should always use ONTAP Snapshot copies or third-party backup solutions to back up and restore data hosted on Cloud Volumes ONTAP.
|ONTAP consistency points in the WAFL file system determine data consistency. Only ONTAP can quiesce the WAFL file system to make a crash-consistent backup.|
Cloud Volumes ONTAP supports Reserved and On-demand VM instances
Cloud Volumes ONTAP can run on either a Reserved or On-demand VM instance from your cloud provider. Other types of VM instances aren’t supported.
Automatic application resource management solutions shouldn’t be used
Automatic application resource management solutions should not manage Cloud Volumes ONTAP systems. Doing so can result in a change to an unsupported configuration. For example, the solution might change Cloud Volumes ONTAP to an unsupported VM instance type.
Software updates must be completed by BlueXP
Upgrades of Cloud Volumes ONTAP must be completed from BlueXP. You should not upgrade Cloud Volumes ONTAP by using System Manager or the CLI. Doing so can impact system stability.
Cloud Volumes ONTAP deployment must not be modified from your cloud provider’s console
Changes to a Cloud Volumes ONTAP configuration from your cloud provider’s console results in an unsupported configuration. Any changes to the Cloud Volumes ONTAP resources that BlueXP creates and manages can impact system stability and BlueXP’s ability to manage the system.
Disks and aggregates must be managed from BlueXP
All disks and aggregates must be created and deleted directly from BlueXP. You should not perform these actions from another management tool. Doing so can impact system stability, hamper the ability to add disks in the future, and potentially generate redundant cloud provider fees.
SnapManager licensing limitation
SnapManager per-server licenses are supported with Cloud Volumes ONTAP. Per-storage system (SnapManager suite) licenses are not supported.
Unsupported ONTAP features
The following features are not supported with Cloud Volumes ONTAP:
Aggregate-level inline deduplication
Aggregate-level background deduplication
Disk maintenance center
Fibre Channel (FC)
Intranode LIF failover
RAID4, RAID-DP, RAID-TEC (RAID0 is supported)
SnapLock Compliance and Enterprise modes (only Cloud WORM is supported)