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IBM

000-221 · Question #98

An administrator wants to create a filesystem with a specific logical volume name, disk location, and disk placement. Which pair of commands will allow these attributes to be set during filesystem…

The correct answer is D. mklv followed by crfs. To create a filesystem with a custom LV name, specific disk location, and placement policy, you must first create the logical volume with mklv, then build the filesystem on it with crfs.

Storage Management

Question

An administrator wants to create a filesystem with a specific logical volume name, disk location, and disk placement. Which pair of commands will allow these attributes to be set during filesystem creation?

Options

  • Acrfs followed by chvg
  • Bcrlv followed by mkfs
  • Cmkfs followed by chfs
  • Dmklv followed by crfs

How the community answered

(24 responses)
  • A
    4% (1)
  • B
    17% (4)
  • C
    8% (2)
  • D
    71% (17)

Why each option

To create a filesystem with a custom LV name, specific disk location, and placement policy, you must first create the logical volume with mklv, then build the filesystem on it with crfs.

Acrfs followed by chvg

crfs can create a filesystem but does not allow pre-configuration of LV name or disk placement, and chvg modifies volume group-level attributes, not logical volume placement or naming.

Bcrlv followed by mkfs

'crlv' is not a valid AIX command - the correct command for creating a logical volume is mklv, making this pair syntactically invalid.

Cmkfs followed by chfs

mkfs creates a filesystem on a raw device but provides no mechanism to specify LV name or disk placement; chfs modifies existing filesystem mount-point attributes and cannot alter the underlying LV's disk location or placement policy.

Dmklv followed by crfsCorrect

The mklv command allows explicit specification of the logical volume name (-y flag), target physical volumes for disk location, and inter/intra-physical-volume placement policies before the filesystem exists. Once the LV is configured with those attributes, crfs creates a filesystem on that pre-defined LV, preserving all placement and naming decisions made at the LV layer. No other command pair allows all three attributes - name, disk location, and placement - to be set at creation time.

Concept tested: AIX mklv and crfs for custom LV and filesystem creation

Source: https://www.ibm.com/docs/en/aix/7.2?topic=m-mklv-command

Topics

#filesystem creation#logical volume#mklv#crfs

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