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NS0-157 · Question #113

A volume named volume217 resides on an aggregate named node7_aggr12 and is mounted in the namespace at junction /source/april/test217. A file named revert.cpp is at the root of volume217. A volume…

The correct answer is C. /source/april/test217/revert.cpp. In clustered ONTAP, a volume move operation is transparent to clients because the namespace junction path is preserved regardless of which aggregate or node the volume resides on.

Storage Provisioning and Management

Question

A volume named volume217 resides on an aggregate named node7_aggr12 and is mounted in the namespace at junction /source/april/test217. A file named revert.cpp is at the root of volume217. A volume move operation relocates volume217 to node3_aggr3. What is the fully qualified path to revert.cpp after the move is complete?

Options

  • A/node3_aggr3/source/april/test217/revert.cpp
  • B/node3_aggr3/volume217/revert.cpp
  • C/source/april/test217/revert.cpp
  • D/vol/source/april/test217/revert.cpp
  • E/vol/volume217/revert.cpp

How the community answered

(30 responses)
  • A
    7% (2)
  • B
    17% (5)
  • C
    73% (22)
  • E
    3% (1)

Why each option

In clustered ONTAP, a volume move operation is transparent to clients because the namespace junction path is preserved regardless of which aggregate or node the volume resides on.

A/node3_aggr3/source/april/test217/revert.cpp

Aggregate names are physical storage constructs that are never exposed in the SVM namespace path used by NAS clients.

B/node3_aggr3/volume217/revert.cpp

Aggregate names do not appear in namespace paths, and the volume name only forms part of a junction path if it was explicitly used when the junction was created.

C/source/april/test217/revert.cppCorrect

The junction path /source/april/test217 is a namespace construct defined on the SVM, not on the physical aggregate or node. When a volume move completes, ONTAP updates the internal mapping so the volume is served from the new aggregate while the junction path in the namespace remains identical, making the operation fully transparent to NAS clients.

D/vol/source/april/test217/revert.cpp

The /vol prefix is a 7-Mode ONTAP namespace convention and is not used in clustered ONTAP SVM namespace junction paths.

E/vol/volume217/revert.cpp

The /vol prefix applies only to 7-Mode ONTAP and does not exist in clustered ONTAP namespace paths, and the volume name is not necessarily the junction name.

Concept tested: ONTAP volume move namespace junction path transparency

Source: https://docs.netapp.com/us-en/ontap/volumes/move-volume-task.html

Topics

#volume move#namespace#junction path#NAS file access

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