Which of the following is correct about the InfoStamper feature of an OceanStor 9000 storage system: (multiple choice)
Select all that apply, then click Submit answer.
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Snapshot does not support nested, that is, the snapshot has been created directory, the parent directory and subdirectories can no longer create a snapshot
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The root directory of the snapshot (that is, the directory used to create the snapshot) does not support deletion
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Hard links are protected by snapshots, soft links are not protected by snapshots
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For a snapshot with an expiration time set, the system automatically deletes the snapshot but does not back up the storage space occupied by the snapshot data after the snapshot expires