Lpi 306-300 Practice Exams
Last updated on Oct 21,2026- Exam Code: 306-300
- Exam Name: LPIC-3: High Availability and Storage Clusters - Exam 306, version 3.0
- Certification Provider: Lpi
- Latest update: Oct 21,2026
Which parameter of vgchange controls whether a volume group is shared within a shared storage cluster? (Specify ONLY the option name without any values or parameters.)
Solution: -c -or- c -or- clustered -or- –clustered
Determine whether the given solution is correct?
- A . Correct
- B . Incorrect
Which of the following commands can be used to change properties such as the number of node slots or the label of an existing OCFS2 filesystem?
- A . ocfs2.setprops
- B . ocfs2tool
- C . crm_edit
- D . tunefs.ocfs2
- E . o2cbtool
When using DRBD in a Pacemaker cluster, which configuration objects must be managed in order to use the DRBD device as storage for other cluster services? (Choose TWO correct answers.)
- A . A security resource in order to permit other cluster services to access the data on the DRBD device.
- B . A health resource in order to check the integrity of the file system.
- C . A file system resource to mount the device.
- D . A replication resource that synchronizes the DRBD device’s data to all nodes that may take over the device after a failover.
- E . A constraint to ensure the device is mounted before the dependent services are started.
Which components of Ceph are responsible for managing storage devices in the cluster?
- A . OSD and MGR
- B . MGR and MON
- C . MON and MDS
- D . OSD and MON
What is the purpose of CRUSH maps in Ceph?
- A . To distribute data across OSDs based on predefined rules.
- B . To encrypt data at rest in Ceph storage pools.
- C . To manage access control for CephFS volumes.
- D . To monitor the health and availability of OSDs.
Which resource class in Pacemaker is used to monitor the health of cluster nodes based on CPU usage?
- A . ocf:pacemaker:ping
- B . ocf:pacemaker:NodeUtilization
- C . ocf:pacemaker:ocf:SysInfo
- D . ocf:pacemaker:HealthCPU
Which command is used to mount an existing GlusterFS volume?
- A . glusterfs-mount
- B . glusterfs-mountpoint
- C . glusterfs-mountvolume
- D . glusterfs
Which of the following commands can be used to safely test and preview Pacemaker configuration changes? (Choose TWO correct answers.)
- A . crm_test
- B . crm_simulate
- C . crm_dryrun
- D . crm_lab
- E . crm_shadow
What is the purpose of the lvextend command?
- A . To create a new logical volume in LVM.
- B . To extend the size of an existing logical volume.
- C . To display information about logical volumes.
- D . To remove a logical volume from LVM.
How can you scale up a Ceph cluster?
- A . By adding additional MGR instances for better cluster management.
- B . By increasing the number of OSDs to expand storage capacity.
- C . By configuring additional MDS instances for improved file system performance.
- D . By adjusting the CRUSH map to include more placement groups.