I'm reminded since Erik brought this up...
Is Warren Montgomery's emacs available, like, anywhere... I used it long
ago on V7m, and I had it on my AT&T 7300 (where it was available as a
binary package).
It's the first emacs I ever used. I don't recall where we got it for the
PDP-11. On our system, we had it permission-restricted so only certain
trusted users could use it - basically, people who could be trusted not to
be in it all the time, and not to use it while the system was busy. We
had an 11/40 with 128K, and 2 or 3 people trying to use Mongomery emacs
would basically crush the system...
In the absence of that, I've always found JOVE to be the next best thing,
as far as being lightweight and sufficently emacs-like. I actually
install it on almost all of my Linux systems. Did JOVE ever run on V7?
--Pat.
> From: Pat Barron
> Is Warren Montgomery's emacs available, like, anywhere...
I've got a copy on the dump of the MIT PWB system. I'm actually supposed to
resurrect it for someone, IIRC, (the MIT system was .. idiosyncratic, so it'll
take a bit of tweaking), but haven't gotten to it yet.
Does anyone else have the source, or is mine the only one left?
Noel
Sorry for the long delay on this notice, but until this weekend there were
still a few things to iron out before I made a broad announcement.
First, I want to thank the wonderful folks at the Living Computers Museum
and Labs <https://livingcomputers.org/> who are set up to host an event at
their museum for our members on the evening of July 10, which is during the
week of USENIX ATC. To quote an email from their Curator, Aaron Alcorn: "*an
easy-going members events with USENIX attendees as their special invited
guests.*" As Aaron suggested, this event will just be computer people
and computers, which seems fitting and a good match ;-)
Our desire is to have as many of the old and new 'UNIX folks' at this event
as possible and we can share stories of how our community got to where we
are. Please spread the word, since we want to get as many people coming
and sharing as we can. BTW: The Museum is hoping to have their
refurbished PDP-7 running by that date. A couple of us on this list will
be bringing a kit of SW in the hopes that we can boot Unix V0!!
Second, USENIX BOD will provide us a room at ATC all week long to set up
equipment and show off some things our community has done in the past. I
have been in contact with some of you offline and will continue to do so.
There should be some smaller historical systems that people will bring
(plus connections to the LCM's systems via the Internet, of course) and
there will be some RPi's running different emulators.
I do hope that both the event and the computer room should be fun for all.
Thanks,
Clem Cole
I think it was BSD 4.1 that added quotas to the disk system, and I was just wondering if anyone ever used them, in academia or industry. As a user and an admin I never used this and, while I thought it was interesting, just figured that the users would sort it out amongst themselves. Which they mostly did.
So, anyone ever use this feature?
David
Several list members report having used, or suffered under, filesystem
quotas.
At the University Utah, in the College of Science, and later, the
Department of Mathematics, we have always had an opposing view:
Disk quotas are magic meaningless numbers imposed by some bozo
ignorant system administrator in order to prevent users from
getting their work done.
Thus, in my 41 years of systems management at Utah, we have not had a
SINGLE SYSTEM with user disk quotas enabled.
We have run PDP-11s with RT-11, RSX, and RSTS, PDP-10s with TOPS-20,
VAXes with VMS and BSD Unix, an Ardent Titan, a Stardent, a Cray
EL/94, and hundreds of Unix workstations from Apple, DEC, Dell, HP,
IBM, NeXT, SGI, and Sun with numerous CPU families (Alpha, Arm, MC68K,
SPARC, MIPS, NS 88000, PowerPC, x86, x86_64, and maybe others that I
forget at the moment).
For the last 15+ years, our central fileservers have run ZFS on
Solaris 10 (SPARC, then on Intel x86_64), and for the last 17 months,
on GNU/Linux CentOS 7.
Each ZFS dataset gets its space from a large shared pool of disks, and
each dataset has a quota: thus, space CAN fill up in a given dataset,
so that some users might experience a disk-full situation. In
practice, that rarely happens, because a cron job runs every 20
minutes, looking for datasets that are nearly full, and giving them a
few extra GB if needed. Affected users in a average of 10 minutes or
so will no longer see disk-full problems. If we see serious imbalance
in the sizes of previously similar-sized datasets, we manually move
directory trees between datasets to achieve a reasonable balance, and
reset the dataset quotas.
We make nightly ZFS snapshots (hourly for user home directories), and
send the nightlies to an off-campus server in a large datacenter, and
we write nightly filesystem backs to a tape robot. The tape technology
generations have evolved through 9-track, QIC, 4mm DAT, 8mm DAT, DLT,
LTO-4, LTO-6, and perhaps soon, LTO-8.
Our main fileserver talks through a live SAN FibreChannel mirror to
independent storage arrays in two different buildings.
Thus, we always have two live copies of all data, and third far-away
live copy that is no more than 24 hours old.
Yes, we do see runaway output files from time to time, and an
occasional student (among currently more than 17,000 accounts) who
uses an unreasonable amount of space. In such cases, we deal with the
job, or user, involved, and get space freed up; other users remain
largely remain unaware of the temporary space crisis.
The result of our no-quotas policy is that few of our users have ever
seen a disk-full condition; they just get on with their work, as they,
and we, expect them to do.
-------------------------------------------------------------------------------
- Nelson H. F. Beebe Tel: +1 801 581 5254 -
- University of Utah FAX: +1 801 581 4148 -
- Department of Mathematics, 110 LCB Internet e-mail: beebe(a)math.utah.edu -
- 155 S 1400 E RM 233 beebe(a)acm.org beebe(a)computer.org -
- Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ -
-------------------------------------------------------------------------------
i used the fair share schedular whilst a sysadmin of a small cray at UNSW. being an expensive machine the various departments who paid for it wanted, well, their fair share.
in a different job i had a cron job that restricted Sybase backend engines to a subset of the cpus on an big SGI box during peak hours, at night sybase had free reign of all cpus.
anyone did anything similar?
-Steve
> From: KatolaZ
> I remember a 5MB quota at uni when I was an undergrad, and I definitely
> remember when it was increased to 10MB :)
Light your cigar with disk blocks!
When I was in high school, I had an account on the school's computer, a
PDP-11/20 running RSTS, with a single RF11 disk (well, technically, an RS11
drive on an RF11 controller). For those whose jaw didn't bounce off the floor,
reading that, the RS11 was a fixed-head disk with a total capacity of 512KB
(1024 512-byte blocks).
IIRC, my disk quota was 5 blocks. :-)
Noel
----- Forwarded message from meljmel-unix(a)yahoo.com -----
Warren,
Thanks for your help. To my amazement in one day I received
8 requests for the documents you posted on the TUHS mailing
list for me. If you think it's appropriate you can post that
everything has been claimed. I will be mailing the Unix TMs
and other papers to Robert Swierczek <rmswierczek(a)gmail.com>
who said he will scan any one-of-a-kind items and make them
available to you and TUHS. The manuals/books will be going
to someone else who very much wanted them.
Mel
----- End forwarded message -----
