NS0-521: NetApp Certified Implementation Engineer - SAN Specialist, ONTAPDemo

By Netapp · Question Mode

QuestionQ54

ONTAP SAN implementation testing and troubleshooting

A customer has a 10GB volume containing an 8GB LUN that uses 7GB. The Snapshot policy runs hourly and retains 48 snapshots. Following a ransomware attack that encrypts every file on the LUN, the customer observes that all snapshots have disappeared.

What could have caused this behavior?

  • A Aggregate overcommitted
  • B Snapshot autodelete
  • C Volume thinly provisioned
  • D Autonomous Ransomware Protection
Explanation

Overwriting the LUN’s data causes Snapshot copies to retain the original blocks, which can rapidly exhaust Snapshot-reserve or volume space. When enabled and triggered by low available volume space or a nearly full Snapshot reserve, ONTAP Snapshot autodelete automatically removes snapshots, typically beginning with the oldest, to reclaim capacity.

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