Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!think.com!spool.mu.edu!agate!darkstar!bu.edu
From: encore.com!boykin@bu.edu (Joseph Boykin)
Newsgroups: comp.os.research
Subject: Re: Disk quotas in Mach?
Message-ID: <16548@darkstar.ucsc.edu>
Date: 3 Jun 91 14:59:59 GMT
Sender: usenet@darkstar.ucsc.edu
Organization: Encore Computer Corp.
Lines: 28
Approved: comp-os-research@jupiter.ucsc.edu


In article <16487@darkstar.ucsc.edu>, fay@wpi.WPI.EDU (Peter R Fay) writes:
|> Has anyone implemented disk quotas in Mach (as in Encore or CMU
|> release), or found a suitable substitute hack?

Disk quotas are part of the CMU Mach release since they are part of
the BSD file system.

Quotas are not part of the Encore release since we didn't expend the
effort to parallelize them.  It is certainly possible for someone
(with our source and with the appropriate amount of experience) to 
paralleize the quota code, but it won't be a trivial effort.

Encore *did* parallelize the quota code for OSF/1, but even if you
have that code it won't help you with the Encore Mach release.
OSF/1 is based on the 4.4BSD file system while Encore's is
based on the 4.3BSD file system.


----

Joseph Boykin
Manager, Mach OS Development
Encore Computer Corp
Treasurer, IEEE Computer Society

Internet: boykin@encore.com
Phone: 508-460-0500 x2720