Avaya R3.0 manual File systems, Virtual memory, Space used by files in a directory

Monitoring system processes

File systems

The df command reports the systems’ disk space usage. If you type the command df at a shell prompt, the output looks similar to the following:

Filesystem	1k-blocks	Used	Available	Use%	Mounted on
/dev/hda2	10325716	2902060	6899140	30%	/
/dev/hda1	15554	8656	6095	59%	/boot
/dev/hda3	20722644	2664256	17005732	14%	/home
none	256796	0	256796	0%	/dev/shm

By default, this utility shows the partition size in 1 kilobyte blocks and the amount of used and available disk space in kilobytes. To view the information in megabytes and gigabytes, use the command df -h.

The -hargument stands for human-readable format. The output looks similar to the following:

Filesystem	Size	Used	Avail	Use%	Mounted on
/dev/hda2	9.8G	2.8G	6.5G	30%	/
/dev/hda1	15M	8.5M	5.9M	59%	/boot
/dev/hda3	20G	2.6G	16G	14%	/home
none	251M	0	250M	0%	/dev/shm

Virtual memory

In the list of partitions, there is an entry for /dev/shm. This entry represents the systems’ virtual memory file system.

Space used by files in a directory

The du command displays the estimated amount of space being used by files in a directory. If you type du at a shell prompt, the disk usage for each of the subdirectories will be displayed in a list. The total for the current directory and subdirectories will also be shown as the last line in the list. If you do not want to see the totals for all the subdirectories, use the command du -hsto see only the total for the directory in human-readable format. Use the du --helpcommand to see more options.

42.4. Hardware

You can also use the lspci command to list all PCI devices. Use the command

●lspci -vfor detailed information or

●lspci -vvfor detailed information plus additional output.

Issue 6 August 2005 25