A server has two physical volumes: /dev/sda (fast SSD) and /dev/sdb (slow HDD). The logical volume lvdata currently has all its extents on /dev/sdb. The administrator wants to move lvdata entirely to the SSD without downtime. Which command accomplishes this?

lvconvert --merge /dev/sdb /dev/sda

pvmove -n lvdata /dev/sdb /dev/sda

What is the recommended first step when shrinking an LVM logical volume?

Run fsck to check the filesystem

Remove the logical volume and recreate it

Shrink the logical volume first

An administrator creates a 20 GB snapshot of a 100 GB LV for a backup. The backup takes 30 minutes. After the backup completes, the administrator wants to remove the snapshot to free space. Which command removes it?

vgreduce /dev/vg /dev/vg/snapshot

lvconvert --merge /dev/vg/snapshot

An administrator must shrink an XFS filesystem on an LV to reclaim space. The LV is 300 GB and the target is 250 GB. Which statement is correct?

XFS cannot be shrunk; the LV must be recreated with a smaller size.

Use lvreduce -L 250G directly; XFS will adjust automatically.

Use xfs_growfs -D 250G to shrink the filesystem, then lvreduce.

Use resize2fs /dev/vg/lv 250G, then lvreduce.

LPI LPIC-3 High Availability and Storage Clusters

Domain 4Objective 3

364.3 Advanced LVM (weight: 3) LPIC-3-HIGH-AVAILABILITY Practice Questions (Page 4)

Part of the Topic 364: Single Node High Availability domain, which makes up ~27% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 2–4 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

8concepts

Questions 16–20

16application · medium
A server has two physical volumes: /dev/sda (fast SSD) and /dev/sdb (slow HDD). The logical volume lvdata currently has all its extents on /dev/sdb. The administrator wants to move lvdata entirely to the SSD without downtime. Which command accomplishes this?
Select an answer first
17foundation · easy
Which command moves physical extents from one physical volume to another within the same volume group?
Select an answer first
18foundation · easy
What is the recommended first step when shrinking an LVM logical volume?
Select an answer first
19application · easy
An administrator creates a 20 GB snapshot of a 100 GB LV for a backup. The backup takes 30 minutes. After the backup completes, the administrator wants to remove the snapshot to free space. Which command removes it?
Select an answer first
20expert · hard
An administrator must shrink an XFS filesystem on an LV to reclaim space. The LV is 300 GB and the target is 250 GB. Which statement is correct?
Select an answer first

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