These policies are in addition to other University and/or IT policies.
Users' disk space in their home directories is controlled by quotas. At this time the default disk quota is 50 Megabytes per user; if more space is needed please contact your user consultant to discuss an increase. Such increases should be for UW-related purposes such as research or class projects.
In general, long-running CPU-intensive processes can impact other users'
ability to work on Frontier. Such processes should be
which runs them at a lower priority than other processes running on the
system, giving preference to interactive type processes. Details on
the use of the
nice command may be found on the
How To Manage Job Control in UNIX
How-To in the Process Priority section.
We also require that any person only run one CPU-intensive process, not several.
User processes which are discovered to have consumed more than 5 minutes
of CPU time will be
niced, and those that are discovered to
have consumed more than 60 minutes of CPU time without being
niced will be killed.
(which are all the same storage area)
are for storage of temporary files only. It is cleaned nightly, and any
files that have not been accessed for 2 days will be deleted.
User-created directories will be deleted without notice.
If available disk space becomes low on
/usr/tmp, files will be deleted
starting with large files until sufficient space is recovered, even if
those files are less than 2 days old.
If you are editing a file with an editor such as
or one of many similar editors (e.g.
elvis), and suffer
a disconnect or system failure, a recovery file is kept in
/var/preserve so that you can recover the lost editing
session (see for example the
-r option of
To keep this directory from becoming clogged with old recovery journals, it is cleaned daily by removing all files that have not been accessed in 7 days. Therefore you have at most 7 days to recover an aborted edit session.
Occasionally programs will crash. On UNIX when this happens, there is
usually an attempt made to save a copy of the program's state as it was
executing in a file. These are saved in your current directory in a file
Because it is a copy of a program plus any memory it had allocated, these files can be quite large, and may cause you to exceed your quota.
If a file named
core already exists, it will be overwritten
without notice. For this reason, do not name any of
core files, found in user directories, that have not been
accessed in more than 7 days will automatically be deleted.
eggdrop, and related programs
Users should not run clients or servers such as
irc (internet relay chat),
eggdrop, MUD, tf, or related programs. These are typically resource hogs that can
significantly impact performance of other users, and/or use techniques to attempt to hide their
presence and bypass normal quotas and security policies.