NS0-157 · Question #318
When Data ONTAP creates a weekly, nightly, or hourly snapshot, the value of n (as shown by the snap list command) is adjusted for all the weekly.n, nightly.n, or hourly.n Snapshot copies. The higher…
The correct answer is A. older. In Data ONTAP's snapshot rotation scheme, each newly created snapshot receives n=0 and all prior snapshots have their n incremented, so a higher n value means an older snapshot.
Question
When Data ONTAP creates a weekly, nightly, or hourly snapshot, the value of n (as shown by the snap list command) is adjusted for all the weekly.n, nightly.n, or hourly.n Snapshot copies. The higher the value of n, the _________ the snapshot.
Options
- Aolder
- Bnewer
- Cmore important
- Dleast important
How the community answered
(26 responses)- A88% (23)
- B4% (1)
- C8% (2)
Why each option
In Data ONTAP's snapshot rotation scheme, each newly created snapshot receives n=0 and all prior snapshots have their n incremented, so a higher n value means an older snapshot.
When Data ONTAP creates a new snapshot, the freshest copy is assigned n=0 and every existing snapshot in the series has its n value incremented by one. This means a snapshot with a higher value of n was created earlier and is therefore older than snapshots with lower n values in the same series.
A higher n value indicates an older snapshot, not a newer one - the most recently created snapshot always receives n=0.
The value of n reflects only chronological order and has no relationship to the operational importance of the snapshot.
Importance is not a concept associated with the n numbering scheme; the value solely indicates relative age within the snapshot rotation.
Concept tested: Data ONTAP snapshot rotation naming and aging convention
Source: https://docs.netapp.com/us-en/ontap/data-protection/manage-snapshots-concept.html
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