Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!cmcl2!rutgers!sunybcs!boulder!hao!oddjob!sphinx!shor
From: shor@sphinx.uchicago.edu (Melinda Shore)
Newsgroups: comp.unix.questions
Subject: Re: UNIX disk space management
Message-ID: <2443@sphinx.uchicago.edu>
Date: Wed, 14-Oct-87 16:43:13 EDT
Article-I.D.: sphinx.2443
Posted: Wed Oct 14 16:43:13 1987
Date-Received: Fri, 16-Oct-87 04:26:52 EDT
References: <11121@beta.UUCP>
Reply-To: shor@sphinx.UUCP (Melinda Shore)
Distribution: na
Organization: Pittsburgh Supercomputing Center
Lines: 23
Keywords: disk space, files

Newsgroups: comp.unix.questions
In article <11121@beta.UUCP> ddk@beta.UUCP (David D Kaas) writes:
>
>	We have a CRAY XMP12 running UNICOS and have been having
>problems managing our disk space.  What do other UNIX sites do to
>manage their disk space?  Do you purge files, charge users for space,
>or let the users manage their own space?

It's worth noting that supercomputer disk use patterns are very
different from disk use patterns on conventional machines.  A major
part of what supercomputers are used for is to generate humungo amounts
of data, and it's probably a mistake to assume that you want to keep
all of it online.  Note also that while throwing an additional medium-
speed disk at your Vax doesn't cost that much, DD49s are *extremely*
expensive.

We are planning on anticipating the problem by finding and installing a
decent archiving system, then charging through the nose for online storage.
The problem with that is that there just aren't that many to choose
from.  CFS is probably the most attractive right now.
-- 
Melinda Shore                                   ..!hao!oddjob!sphinx!shor
Pittsburgh Supercomputing Center                     shore@morgul.psc.edu