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Oracle

1Z0-820 · Question #68

You are creating a non-global zone on your system. Which option assigns a zpool to a non-global zone, and gives the zone administrator permission to create zfs file system in that zpool?

The correct answer is C. In the global zone, create the zpool. Option C is correct because it uses zonecfg's add dataset resource type to delegate the entire zpool to the non-global zone, which is the only method that both assigns the pool and grants the zone administrator privileges to create child ZFS file systems within it. This…

Managing Data Storage

Question

You are creating a non-global zone on your system. Which option assigns a zpool to a non-global zone, and gives the zone administrator permission to create zfs file system in that zpool?

Options

  • AWhile creating the non-global zone, make the following entry:
  • BIn the global zone, create the zpool:
  • CIn the global zone, create the zpool:
  • DIn the global zone, create the zpool and the ZFS file systems that you want to use in the non- global zone:
  • ECreate the zpool in the global zone:

How the community answered

(33 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    85% (28)
  • E
    9% (3)

Explanation

Option C is correct because it uses zonecfg's add dataset resource type to delegate the entire zpool to the non-global zone, which is the only method that both assigns the pool and grants the zone administrator privileges to create child ZFS file systems within it. This leverages ZFS's built-in delegation model, where assigning a pool-level dataset transfers administrative capabilities down to the zone.

Why the distractors fail:

  • Option A (entry during zone creation) likely uses add fs, which creates a loopback/lofs mount - this shares a filesystem but does not grant the zone admin ZFS management permissions.
  • Option B uses a global-zone-side configuration that probably mounts the storage without delegating ZFS administrative rights to the zone admin.
  • Option D pre-creates the ZFS file systems in the global zone before assigning them - this gives the zone access to existing filesystems but explicitly takes away the zone admin's ability to create new ones.
  • Option E creates the zpool but likely uses add fs or another method that stops short of full ZFS delegation.

Memory tip: Think "Dataset = Delegation" - add dataset in zonecfg is the magic phrase. If the question mentions a zone admin needing to create ZFS filesystems (not just use them), you need add dataset, not add fs.

Topics

#zpool delegation#non-global zones#ZFS filesystems#zone administration

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