Linux Filesystems

Monitor Disk Space and Inodes

Compare filesystem capacity, inode availability, directory use, and open-file behavior to diagnose storage pressure accurately.

Intermediate14 min read
Linux Filesystems lessonLinuxPractice

UNTIMED COACHING

Practice before the pressure

Use feedback to correct the model, not merely memorize an option position.

GUIDED PRACTICE

Practice the lesson questions

Answer normal lesson questions without a timer. Every answer includes an explanation, and incorrect answers can be tried again before continuing.

CONCEPT MODELS

See the lesson as a system

Use these visual guides to connect the key ideas before answering the questions.

From Filesystem capacity to Deleted open filesConnect filesystem capacity with inode capacity, directory usage, and deleted open files.
From Filesystem capacity to Deleted open filesA learning path connects four specific concepts used in monitor disk space and inodes and states the outcome of each one.
Filesystem capacityCapacity and free space for one filesystem
Inode capacityUsed and available inode counts are visible
Directory usageLarge directory trees are ranked by use
Deleted open filesHidden use held by a process is identified
Cleanup evidence: command and checksConnect cleanup evidence with the starting command, expected result, and specific safety boundary.
Cleanup evidence: command and checksA practical check connects cleanup evidence to the relevant command, expected evidence, and caution.
Cleanup evidenceFocus on cleanup evidence
Starting commandRepeat df and du after cleanup
Expected resultFreed space confirmed on the filesystem
Safety boundaryPreserve needed logs before deletion