The following is an example of a server setup in an academic setting, and is contributed by nakano (at) apm.seikei.ac.jp. I have only done minor editing to this section.
/var/spool/delegate is a directory for storing logs and cache files of an WWW proxy server program, "delegated". Since I don't notice it widely, there are 1000--1500 requests/day currently, and average disk usage is 15--30% with expiration of caches each day.
/mnt.archive is used for data files which are big and not frequently referenced such a s experimental data (especially graphic ones), various source archives, and Win95 backups (growing very fast...).
/mnt.root is backup root file system containing rescue utilities. A boot floppy is also prepared to boot with this partition.
================================================= Directory sda sdb hda swap | 64 | 64 | | / | | | 20 | /tmp | | | 180 | /var : 300 : : : /var/tmp | | 300 | | /var/spool/delegate | 300 | | | /home | | | 850 | /usr | 360 | | | /usr/lib -> /mnt.lib/usr.lib /usr/local/lib -> /mnt.lib/usr.local.lib /mnt.lib | | 350 | | /mnt.archive : : 1300 : : /mnt.root | | 20 | | Total capacity: 1024 2034 1050 ================================================= Drive : sda sdb hda Total capacity: | 1024 | 2034 | 1050 | Partition 1 | 300 | 20 | 20 | 2 : 64 : 1300 : 180 : 3 | 300 | 64 | 850 | 4 : 360 : ext : : 5 | | 300 | | 6 : : 350 : : Filesystem 1024-blocks Used Available Capacity Mounted on /dev/hda1 19485 10534 7945 57% / /dev/hda2 178598 13 169362 0% /tmp /dev/hda3 826640 440814 343138 56% /home /dev/sda1 306088 33580 256700 12% /var /dev/sda3 297925 47730 234807 17% /var/spool/delegate /dev/sda4 363272 170872 173640 50% /usr /dev/sdb5 297598 2 282228 0% /var/tmp /dev/sdb2 1339248 302564 967520 24% /mnt.archive /dev/sdb6 323716 78792 228208 26% /mnt.lib
Apparently /tmp and /var/tmp is too big. These directories shall be packed together into one partition when disk space shortage comes.
/mnt.lib is also seemed to be, but I plan to install newer TeX and ghostscript archives, so /usr/local/lib may grow about 100 MB or so (since we must use Japanese fonts!).
Whole system is backed up by Seagate Tapestore 8000 (Travan TR-4, 4G/8G).