The deduplication feature has the following characteristics:
- Only user data blocks are deduplicated.
- Dedupe is a post-process that is performed as a fixed block-based deduplication. It is not an inline dedupe process.
- Data is deduped within a given file system and not across multiple file systems.
- Dedupe has been designed with quality of service (QoS) as a key component. File system activity takes precedence over dedupe activity when file serving load goes beyond 50 percent of the available IOPS or throughput capacity. The deduplication process throttles back to allow the additional file serving traffic load to continue without impacting performance.
- You can configure a new file system to support and enable dedupe.
- An existing WFS-2 file system can be converted to be dedupe-enabled.
- File systems with support for dedupe can be dedupe-enabled or dedupe-disabled.