You are asked to create several writable test environments from a production database LUN without consuming much additional storage. Which ONTAP feature should you use?

You are asked to create several writable test environments from a production database LUN without consuming much additional storage. Which ONTAP feature should you use?

• A. SnapMirror Synchronous
• B. FlexClone Volume
• C. FlexGroup Volume
• D. SnapVault

Answer: (B)

Focus on space-efficient cloning that lets you spin up writable test environments without duplicating data. FlexClone provides exactly that: you create a writable clone of a LUN (or volume) that initially shares data blocks with the source. As soon as either side writes, only the modified blocks are allocated, so multiple test environments can run independently while consuming little extra storage. This makes it ideal for testing against production data, QA, or dev scenarios where you need writable copies quickly and cheaply. The other options don’t fit this use case. SnapMirror Synchronous is about moving or mirroring data to a remote system for DR, not about creating in-place, space-efficient clones. FlexGroup Volumes focus on scaling large NAS workloads across many disks, not on cloning behavior. SnapVault is a backup/archival solution, which also involves separate storage for backups rather than creating writable clones from the production source.

Focus on space-efficient cloning that lets you spin up writable test environments without duplicating data. FlexClone provides exactly that: you create a writable clone of a LUN (or volume) that initially shares data blocks with the source. As soon as either side writes, only the modified blocks are allocated, so multiple test environments can run independently while consuming little extra storage.

This makes it ideal for testing against production data, QA, or dev scenarios where you need writable copies quickly and cheaply.

The other options don’t fit this use case. SnapMirror Synchronous is about moving or mirroring data to a remote system for DR, not about creating in-place, space-efficient clones. FlexGroup Volumes focus on scaling large NAS workloads across many disks, not on cloning behavior. SnapVault is a backup/archival solution, which also involves separate storage for backups rather than creating writable clones from the production source.