View a step-by-step screencast of this process:
Log into the RHEL server as root via PuTTY, or shell out from Eterm.
The “df” command is used to determine overall filesystem usage. The “vgs” command will show you any space available in the volume group that has not yet been allocated to a specific filesystem.
To see the total size of each filesystem:
The standard Eclipse filesystems are located under /u2. Add the “Used” column for each of these filesystems, plus any non-standard Eclipse filesystems that you may have (/train, /backup, etc.).
[root@firestorm ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/rootvg-root 20G 18G 1.1G 95% / /dev/mapper/datavg-u2 3.9G 2.1G 1.6G 57% /u2 /dev/mapper/datavg-uvtmp 3.9G 137M 3.6G 4% /u2/uvtmp /dev/mapper/rootvg-esupport 5.9G 3.4G 2.3G 60% /esupport /dev/sda1 99M 26M 69M 28% /boot tmpfs 3.9G 0 3.9G 0% /dev/shm /dev/mapper/datavg-eclipse 26G 17G 7.6G 69% /u2/eclipse /dev/mapper/datavg-ereports 992M 34M 908M 4% /u2/eclipse/ereports /dev/mapper/datavg-lvol0 3.9G 2.1G 1.6G 57% /snap/u2 /dev/mapper/datavg-lvol4 3.9G 137M 3.6G 4% /snap/u2/uvtmp /dev/mapper/datavg-lvol6 26G 17G 7.6G 69% /snap/u2/eclipse
If you would like to identify which files or subdirectories are using the most space in a particular filesystem or directory, you may use the “du” command. For example, to list the disk usage of top files and directories under /u2/eclipse in megabytes:
[root@firestorm ~]# cd /u2/eclipse [root@firestorm eclipse]# du -sm * | sort -rn | head 3780 modules-linux 2856 modules 1568 ZIP4 859 jsdata 740 PHANTOM.LOG 740 modules-test 450 8.6.9.00.16-aix.zip 447 8.6.9.00.99-aix.zip 446 8.6.9.00.11-aix.zip 428 8.6.9.00.13-aix.zip
If you would like to see how much space is available for allocation within the volume group:
For more detail on this process, see: How do I expand a Linux file system?
Alternatively, if you prefer a graphical tool, you may log into the server’s GUI, and use the Disk Usage Analyzer tool:
- Log into the server’s GUI (see also How do I access the GUI of my Linux server?)
- Applications -> System Tools -> Disk Usage Analyzer
- Click the Filesystem button to begin storage analysis of your entire system
- Use the controls to drill down into each subdirectory for a graphical picture of storage utilization