This EX200 practice question tests your understanding of configure local storage. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An administrator wants to extend an XFS filesystem that resides on an LVM logical volume. The volume group has free physical extents. Which is the correct sequence?
lvextend, then xfs_growfs
Correct: extend LV, then grow filesystem.
lvextend, then resize2fs
Why wrong: resize2fs is for ext2/3/4, not XFS.
xfs_growfs, then lvextend
Why wrong: Filesystem resize must be after LV extend.
resize2fs, then lvextend
Why wrong: Wrong order and wrong tool.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
lvextend, then xfs_growfs
To extend an XFS filesystem on an LVM logical volume, you must first extend the logical volume with `lvextend` to allocate additional physical extents from the volume group, then grow the XFS filesystem to use the new space with `xfs_growfs`. XFS does not support online shrinking and requires the filesystem to be mounted for `xfs_growfs` to work. This sequence ensures the block device has sufficient capacity before the filesystem is expanded.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
lvextend, then xfs_growfs
Why this is correct
Correct: extend LV, then grow filesystem.
Related concept
Read the scenario before looking for a memorised answer.
lvextend, then resize2fs
Why it's wrong here
resize2fs is for ext2/3/4, not XFS.
xfs_growfs, then lvextend
Why it's wrong here
Filesystem resize must be after LV extend.
resize2fs, then lvextend
Why it's wrong here
Wrong order and wrong tool.
Common exam traps
The trap here is that candidates confuse the filesystem type and apply `resize2fs` (for ext4) to XFS, or incorrectly assume the filesystem can be grown before the logical volume is extended.
Detailed technical explanation
Under the hood, `lvextend` modifies the LVM metadata to map new physical extents to the logical volume, increasing the size of the block device (e.g., /dev/mapper/vg-lv). The `xfs_growfs` command then calls the XFS kernel driver to expand the filesystem's data section to fill the new space; it can only grow, never shrink, and requires the mount point as an argument. A real-world scenario is extending a /home partition on RHEL 8 where the root filesystem is XFS — forgetting to run `xfs_growfs` after `lvextend` leaves the filesystem unaware of the new space.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the EX200 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Configure local storage — This question tests Configure local storage — Read the scenario before looking for a memorised answer..
The correct answer is: lvextend, then xfs_growfs — To extend an XFS filesystem on an LVM logical volume, you must first extend the logical volume with `lvextend` to allocate additional physical extents from the volume group, then grow the XFS filesystem to use the new space with `xfs_growfs`. XFS does not support online shrinking and requires the filesystem to be mounted for `xfs_growfs` to work. This sequence ensures the block device has sufficient capacity before the filesystem is expanded.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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