NS0-157 · Question #103
Which three statements are true about a node's vol0 volume? (Choose three)
The correct answer is A. It is not part of the namespace. B. One exists on every node in the cluster. E. It cannot be moved with the volume move command. A node's vol0 is a special root volume that is isolated from the data namespace, exists on every node, and cannot be relocated using standard volume move operations.
Question
Which three statements are true about a node's vol0 volume? (Choose three)
Options
- AIt is not part of the namespace.
- BOne exists on every node in the cluster.
- CIt is the most efficient place to store critical user data.
- DIt should have LS mirrors on every node in the cluster.
- EIt cannot be moved with the volume move command
How the community answered
(25 responses)- A88% (22)
- C8% (2)
- D4% (1)
Why each option
A node's vol0 is a special root volume that is isolated from the data namespace, exists on every node, and cannot be relocated using standard volume move operations.
vol0 is the node root volume and is intentionally excluded from the cluster namespace so that clients cannot access it through normal NAS or SAN data paths.
Every node in a clustered ONTAP cluster has its own vol0 volume, which holds that node's configuration, log files, and core files.
vol0 is reserved for node configuration and system data, making it entirely inappropriate and unsupported as a location for critical user data.
LS (load-sharing) mirrors are applied to SVM root volumes for namespace availability, not to each node's vol0, which serves a different function.
The 'volume move' command cannot be used to move vol0 because it is the node root volume and its location is tied to the node's local aggregate, making it immovable via standard data management commands.
Concept tested: Clustered ONTAP node root volume vol0 characteristics
Source: https://docs.netapp.com/us-en/ontap/volumes/manage-volumes-task.html
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