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Keeping track of disk usage and health is crucial for preventing data loss and ensuring efficient storage management.
1. df -h # Shows disk space usage in "human-readable" format
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df -h
Filesystem Size Used Avail Use% Mounted on
udev 3.8G 0 3.8G 0% /dev
tmpfs 783M 1.7M 781M 1% /run
/dev/sda2 233G 25G 197G 12% /
tmpfs 3.9G 39M 3.8G 1% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 783M 80K 783M 1% /run/user/1000 |
2. du -sh /path/to/directory Displays the size of a specific directory.
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du -sh /path/to/directory
1.1G /path/to/director
# Shows disk space usage.
du -sh /path/to/directory # Displays the size of a specific directory.
fdisk -l # Lists all partitions.
smartctl -a /dev/sda # Checks the health of a disk (requires smartmontools).
iostat # Reports CPU and I/O statistics. |
3. fdisk -l # List all partitions
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fdisk -l
Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors
Disk model: QEMU HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: XXXXXX-XXX-XXX-XXXX-XXXXXXXXXX
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 41940607 41936512 20G Linux filesystem |
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Process and Service Management |
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