📄️ Inodes
Inodes store metadata for files (permissions, UID/GID, timestamps, block pointers). Each filesystem has a fixed number of inodes created at format time.
📄️ Filesystems
Filesystems define how data and metadata are structured on block devices. Common types include ext4, xfs, and btrfs.
📄️ Mounts
Mounting attaches a filesystem to a directory tree. Persistent mounts are defined in /etc/fstab.
📄️ LVM (Logical Volume Manager)
LVM abstracts disks into physical volumes (PV), groups them into volume groups (VG), and allocates logical volumes (LV).
📄️ Adding Disks
New disks must be partitioned, formatted, and mounted before use.
📄️ Swap
Swap extends RAM using disk space. It can be configured as a partition or file.
📄️ Use Case
Configuring Persistent Storage