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Discuss and ask questions about NetApp's Operating System, ONTAP, and its data protection features and plug-ins.

WALF and general block reclamation

Guys, whilst reading these forums, I see a lot of deference to storage reclamation when snapshots are deleted from aggregates/volumes or flexclones are deleted (not LUN space reclamation where files are deleted from an OS as that I understand). It seems like that when a vol snapshot,aggregate snapshot or flexclone is deleted a background process runs to:

  1. Mark the blocks locked by the snapshot as reusable ?
  2. Zero or clean those blocks for reuse ?

Is there any info on this process and how to monitor? Maybe the WAFL Scan status command?

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