An administrator is migrating a volume group vgdata from one server to another. The administrator has backed up the metadata with `vgcfgbackup vgdata`. On the new server, the disks have different device names (e.g., /dev/sdb instead of /dev/sda). How should the administrator restore the VG on the new server?

Run `vgcfgrestore vgdata` on the new server; LVM will automatically remap the device names.

Run `vgscan` and then `vgchange -ay` to activate the VG on the new device names.

Run `vgimportclone /dev/sdb` to import the VG with a new name and then rename it to vgdata.

Run `pvcreate /dev/sdb`, then `vgcfgrestore vgdata` to restore the metadata to the new disk.

A database server has a logical volume /dev/vgdata/dbdata mounted at /var/lib/mysql. The volume is running out of space. The admin checks `vgs` and sees that the volume group vgdata has 50 GiB of free space. The filesystem on the LV is ext4. What is the correct sequence of commands to grow the logical volume and its filesystem to use all available space in the volume group?

`lvextend -L +50G /dev/vgdata/dbdata` then `resize2fs /var/lib/mysql`

`resize2fs /dev/vgdata/dbdata` then `lvextend -l +100%FREE /dev/vgdata/dbdata`

`lvextend -L +50G /dev/vgdata/dbdata` then `xfs_growfs /var/lib/mysql`

`lvextend -l +100%FREE /dev/vgdata/dbdata` then `resize2fs /dev/vgdata/dbdata`

An administrator needs to create a consistent backup of a busy ext4 filesystem mounted at /srv/data. The LV backing this filesystem is /dev/vgbackup/data. The admin wants to take a snapshot, mount it read-only, and copy the files. Which command creates a snapshot that can be mounted and used for this purpose?

`lvcreate --snapshot -L 10G -n datasnap /dev/vgbackup/data` without mounting it

`lvcreate -L 10G -s -n datasnap /dev/vgbackup/data`

`lvcreate -s -L 10G -n datasnap /dev/vgbackup/datasnap`

`lvcreate -L 10G -n datasnap /dev/vgbackup/data`

LPI LPIC-2:Linux Engineer (201-450)

Domain 5Objective 3

204.3 Logical Volume Manager (weight: 3) LPIC-2 Practice Questions (Page 3)

Part of the Topic 204: Advanced Storage Device Administration domain, which makes up ~10% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–6 in this domain), expect 1–2 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

12concepts

12 Concepts in This Objective

LVM architecture
Creating physical volumes
Creating volume groups
Creating logical volumes
Managing logical volumes
Removing LVM components
Displaying LVM information
LVM snapshots
LVM thin provisioning
LVM mirroring and striping
LVM metadata and backup
LVM troubleshooting

Questions 11–15

11expert · hard
An administrator is migrating a volume group vgdata from one server to another. The administrator has backed up the metadata with `vgcfgbackup vgdata`. On the new server, the disks have different device names (e.g., /dev/sdb instead of /dev/sda). How should the administrator restore the VG on the new server?
Select an answer first
12application · medium
A database server has a logical volume /dev/vgdata/dbdata mounted at /var/lib/mysql. The volume is running out of space. The admin checks `vgs` and sees that the volume group vgdata has 50 GiB of free space. The filesystem on the LV is ext4. What is the correct sequence of commands to grow the logical volume and its filesystem to use all available space in the volume group?
Select an answer first
13foundation · easy
Which command backs up the LVM metadata of all volume groups to files in /etc/lvm/backup?
Select an answer first
14foundation · easy
Which command removes a logical volume?
Select an answer first
15application · medium
An administrator needs to create a consistent backup of a busy ext4 filesystem mounted at /srv/data. The LV backing this filesystem is /dev/vgbackup/data. The admin wants to take a snapshot, mount it read-only, and copy the files. Which command creates a snapshot that can be mounted and used for this purpose?
Select an answer first

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204.3 Logical Volume Manager (weight: 3) LPIC-2 Practice Questions (Page 3)

Questions 11–15

Which command backs up the LVM metadata of all volume groups to files in /etc/lvm/backup?

Which command removes a logical volume?

Keep studying — Topic 204: Advanced Storage Device Administration