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NetApp Knowledgebase

When does the NetApp NFS Plugin for VMware VAAI improve clone performance?

Applies to

  • ONTAP
  • NetApp NFS Plugin for VMware VAAI

Answer

All NFS VAAI clone operations are offloaded to storage, which reduces host/network resource demand. This may improve clone performance in some environments.

NFS VAAI cloning operations will complete even faster if the following conditions are fulfilled:

  • The clone is performed within the same volume.
  • FlexClone is licensed.
  • The volume is configured for deduplicated data.

Additional Information

ONTAP has three cloning engines for NFS VAAI clones. When ONTAP receives a NFS VAAI clone request, it uses a built-in copy manager to determine which cloning engine to use.

NetApp Spin Copy Engine

  • Used when the source and destination locations are on different nodes
  • Performs block-for-block copies of the file
  • Has no acceleration beyond offloading the operation to storage

NetApp Block Copy Engine

  • Used when the source and destination locations are within the same node
  • Performs block-for-block copies of the file
  • Has no acceleration beyond offloading the operation to storage

NetApp FlexClone (SISClone) Engine

  • Used when the source and destination location is the same volume and FlexClone is licensed and the volume is configured for deduplication
  • Uses FlexClone for a faster, more space efficient clone