Storage and File Systems Flashcards
6 cards from real RHCE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Storage and File Systems flashcards as text
Which command is used to create a physical volume in LVM?
Answer: pvcreate
The `pvcreate` command initializes a disk or partition as an LVM physical volume.
What file system type is recommended by Red Hat for XFS journaling on RHEL 8+?
Answer: xfs
XFS is the default and recommended file system for RHEL 8 and later due to its performance and scalability.
Which command displays the disk usage of a mounted file system in human-readable format?
Answer: df -h
`df -h` reports file system disk space usage in human-readable units like GB and MB.
Which LVM command extends an existing logical volume by 2GB?
Answer: lvextend -L +2G /dev/vg0/lv0
`lvextend -L +2G` increases the size of a logical volume by the specified amount.
What is the purpose of the `/etc/fstab` file?
Answer: Defines file systems to mount at boot
The `/etc/fstab` file contains static information about file systems and is read at boot to mount them automatically.
Which command resizes an XFS file system to fill its logical volume after expansion?
Answer: xfs_growfs
`xfs_growfs` expands an XFS file system to use all available space in its underlying block device.
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