RHCSA RHCSA LVM Storage Management 4

Question 1

When using lvextend with the '-r' flag, what additional action does it perform automatically?

Accepted Answer

Resizes the filesystem on the LV

Answer

The -r (--resizefs) flag causes lvextend to automatically resize the filesystem after extending the LV.

Question 2

Which LVM configuration file is the primary source for system-wide LVM settings such as filter rules for devices?

Accepted Answer

/etc/lvm/lvm.conf

Answer

/etc/lvm/lvm.conf is the main LVM configuration file controlling filters, logging, and global settings.

Question 3

A logical volume is inactive. Which command activates it so it can be mounted?

Accepted Answer

lvchange -ay /dev/vg0/lv0

Answer

lvchange -ay activates a specific logical volume, making its device node available for mounting.

Question 4

What happens to a snapshot LV when it reaches 100% usage of its allocated space?

Accepted Answer

It becomes invalid and can no longer be used

Answer

When a snapshot runs out of space, it becomes invalid and cannot be used for recovery or mounting.

Question 5

Which pvdisplay field shows how many physical extents on a PV are currently allocated to logical volumes?

Accepted Answer

Allocated PE

Answer

The 'Allocated PE' field shows how many physical extents are currently in use by logical volumes.

RHCSA Exam Practice Test