Verified diagnostic signature
A filesystem cannot allocate more data blocks or metadata.
Match output from filesystem, understand the likely cause, then continue with sourced, read-only checks.
- Confidence
- high
- Platforms
- linux · macos
- Verified
- 2026-07-24
Recognized output
Signature matched locally
filesystem is fullOneLiners matches this pattern in your browser. Your pasted output is not stored or indexed.
Likely causes
What usually produces this signal
- Capacity exhaustion
- Quota exhaustion
- Reserved blocks unavailable to the current identity
Safe next checks
Collect evidence before changing the system
Show free disk space in human-readable units
df -hThe output matches the expected target and exits without an error.
Show filesystem inode usage
df -iThe output matches the expected target and exits without an error.
Find the 20 largest files and folders here
du -ah . | sort -rh | head -20The output matches the expected target and exits without an error.