Sun-Spots Digest, v6n135
William LeFebvre
Sun-Spots-Request at RICE.EDU
Tue Jul 12 12:19:14 AEST 1988
SUN-SPOTS DIGEST Monday, 11 July 1988 Volume 6 : Issue 135
Today's Topics:
Re: QIC-24 cartridge tape and dump command
Gotcha with SunOS 4.0 ftp
malloc() - free() problems
Help with ZS pseudo-drivers
SunOs 4.0 installation question
PS to LaserJet and rasterfile to Laserjet Translators
Database on optical laser disk?
Fonts? BIG FONTS?
ONC Solution Guide questionaire
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----------------------------------------------------------------------
Date: Thu, 30 Jun 88 18:06:09 -0400
From: dan at wilma.bbn.com
Subject: Re: QIC-24 cartridge tape and dump command
In our group we use the following options to dump onto a 450-foot
cartridge using the QIC-24 format:
dump cbfs 126 /dev/rst8 3820 <filesystems>...
plus whatever other options (incremental dump level, etc.) you may want.
The reasons for each option are as follows. You must specify "c"
(cartridge) so that dump uses the appropriate values for density (1000
bytes/inch -- same for QIC-11 and QIC-24) and inter-record gap. The "b"
(blocking) option forces each write to the tape to be very large, making
much more efficient use of the tape. The "s" (size) option is needed
because the "c" option assumes you're using QIC-11 (rst0), which only puts
4 tracks on the tape, as opposed to the 9 tracks QIC-24 puts on it. The
interpretation of the "s" option doesn't understand about multiple serial
tracks, so you have to take the length of your tape in feet and multiply
it by 9, subtracting some amount for slop. (Even with /dev/rst0, if you
are using any size other than 450-foot tapes you should specify the size
to dump. Multiply the length of your tape by 4 and subtract some slop.
The default "s" value for cartridge tapes is 1700, which is a "slop" of
5.5% of the tape.)
If you ever do need to specify the "d" option, note that it is in
bytes/inch, not bits/inch (despite the comment in dumpmain.c). With 1/2"
reels of tape, each byte is recorded vertically, so it makes no
difference, but with cartridges, each byte is recorded serially.
QIC-24 (and probably QIC-11) assume that your tape can handle 10,000 flux
transitions per inch. All the tapes we have around here are rated to
that.
You can get a copy of any QIC "standard" from
Freeman Associates
311 E. Carillo St.
Santa Barbara, Ca 93101
805-963-3853
There is no charge.
Despite having a copy of the standard, I am still not sure I understand
everything about writing to cartridge tapes. In particular, I don't know
how to figure out how big the gap is between each block of data resulting
from successive write() calls when you're writing too slowly to stream
continuously, as with dump. The drive does sound like it backs up to get
near the end of the previous write. However, I can't find anything in the
standard implying that each write has to be located no more than a certain
distance from the previous one. This means I don't know how to figure out
how much slop is really needed in the "s" calculation. (The standard does
discuss inter-record gaps, but seems to be talking about the gap between
each of the many tiny 512-byte blocks a single write() call is split
into.) All I can say is that the number above works.
Dan Franklin
------------------------------
Date: Thu, 23 Jun 88 17:52:02 CST
From: Simon Hackett <munnari!sirius.ua.oz.au!simon at uunet.uu.net>
Subject: Gotcha with SunOS 4.0 ftp
Don't know if this has already been mentioned, but here is an important
"gotcha" with inward connection to SunOS 4.0 ftp, for sites which use
unusual login shells.
As of SunOS 4.0, the shell used by the user you want on the SunOS 4.0
machine is validated against the list supplied by "getusershell" (see the
manual pages on ftpd and getusershell). Hence, if you want to be able to
ftp to usernames running shells other than /bin/sh or /bin/csh (like our
site, where everyone except root uses /bin/tcsh), you need to create
/etc/shells and put something like the following into it:
/bin/sh
/bin/csh
/bin/tcsh
Hope this helps someone out. This stumped us for a while. Reading the
manual pages is quite enlightening at times. At other times, of course,
it's no use at all...
Simon Hackett, Systems Group, University of Adelaide, South Australia
VMS: IN%"simon at sirius.ua.oz"
ACSNET,CSNET,BITNET: simon at sirius.ua.oz
ARPA: simon%sirius.ua.oz at seismo.css.gov
USENET: ...!<backbone>!munnari!sirius.ua.oz!simon
------------------------------
Date: 29 Jun 88 15:21:20 GMT
From: unido!bilbo.irb!tb at uunet.uu.net (Torsten Beyer)
Subject: malloc() - free() problems
Hi everybody,
I recently ran into a problem with malloc() and free() on our 3/260
running SunOS 3.4.2. Probably I'm doing something wrong. Perhaps anyone
could help me. The problem is as follows :
I have a little c-program which malloc()s 10 Mb, free()s these 10Mb,
malloc()s another 10Mb and then waits for a key to be hit. If I do a ps
aux on another terminal at this stage, ps tells me that my program has
allocated 20 Mb of virtual storage. When I run the same program on a uVax
running Ultrix 2.0 ps tells me I that my program has allocated ~16 Mb of
RAM. This too sounds to much for me. But 20Mb on a sun definitely IS to
much. To my opinion after the second malloc() there should be 10 Mb
allocated.
Am I wrong or is my OS wrong ??
Thanx for any hints
-Torsten
Torsten Beyer e-mail : tb at unido.uucp
University of Dortmund ..uunet!unido!tb
IRB tb at unido.bitnet
P.O.Box 500500
D-4600 Dortmund 50 voice : +49 231 7552422
West-Germany
------------------------------
Date: Wed, 29 Jun 88 17:18:17 EDT
From: dae at shire.cs.psu.edu
Subject: Help with ZS pseudo-drivers
Work-Phone: +1 814 865 9505
Home-Phone: +1 814 862 4811
I have to write a device driver for the Zilog UART on our Sun-4. I don't
have the time right now to learn how to write a streams driver (my object
is to get this working somewhere--it would be nice to support this code on
Suns, but I have other options), so I'm trying to do this as a zs
pseudo-driver under 3.2. I've wasn't able to find any documentation on
these beasts, so I tried contacting Sun for help.
My first request to hotline at sun.com was answered by "Please state your
name, address, and serial number." I did so, and heard nothing. A week
later, I sent a follow-up message. It's not quite another week and I've
heard nothing yet.
Anyway, is there anybody out there who can help me? I've got something
that looks like it mostly works, but there's an interrupt the Zilog
documentation says I should get that I don't seem to be, and I'm not sure
where the problem is (Zilog, zs code, or me).
Thanks to anyone who can help.
--Daemon
------------------------------
Date: Thu, 30 Jun 88 10:21:53 EDT
From: Ned Danieley <ndd at sunbar.mc.duke.edu>
Subject: SunOs 4.0 installation question
As long as we are discussing the installation of 4.0, I was wondering if
they've fixed a problem I've had with previous releases? I've never been
able to get setup to let me specify an Internet address that was less than
192.*. Since our addresses are 128.109.148.*, that's always been a real
pain. Has this been fixed in 4.0? Or am I the only one who's had the
problem?
Ned Danieley (ndd at sunbar.mc.duke.edu)
Basic Arrhythmia Laboratory
Box 3140, Duke University Medical Center
Durham, NC 27710
(919) 684-6807 or 684-6942
------------------------------
Date: Thu, 30 Jun 88 07:40:47 ]Io
From: Tom Doong <doong at eneevax.umd.edu>
Subject: PS to LaserJet and rasterfile to Laserjet Translators
Does anyone out there have a working PostScript to HP LaserJet and
rasterfile to LaserJet translator for the SUN 3/xxx line of machines? I
got the file lj-filters.shar from titan.rice.edu, but it does strange
things to my machine, (like continually sending my print file to the
printer until I lprm the file from the queue and turn off the printer).
You can send replies directly to me: doong at eneevax.umd.edu or
doong at reston.unisys.com
Thanks in advance for the help.
------------------------------
Date: 30 Jun 88 09:12:51 GMT
From: mcvax!pe!fk at uunet.uu.net (Flemming Korslund)
Subject: Database on optical laser disk?
Does anyone have experience with databases on Optical Laser Disks ('Write
Once Read Many' -type) ?
Does anyone have experience with choice in hardware (especially the Laser
Disk System) or in software? I need up to 6 Gbytes disk space for scanned
images.
Any suggestions will be appreciated, thanks in advance.
Flemming Korslund
Purup Electronics a/s Email: fk at pe.dk
Soenderskovvej 5 UUCP : ...!mcvax!diku!dkuug!pe!fk
8520 Lystrup
Denmark Phone: +45 622 2522
------------------------------
Date: Wed, 29 Jun 88 09:35:38 -0400
From: mesard at bbn.com
Subject: Fonts? BIG FONTS?
Phone: 617-873-1878
Does anyone have any vfont format (i.e., SunView-type) fonts that I could
get my hands on? Especially large ones.
I have the usual array of "screen" [7-14] and "cour" [10-24], and a few
others, but we'll be giving a demo to the National Academy of Nearsighted
Administrators (N.A.N.A. :-) soon, and it would be awful nice if they
could read what's on the screen without having to crawl inside it.
wnl, Are there any interesting fonts in the archives? (I didn't see any,
but may not have looked in all the right places.)
[[ A few applications come with some fonts, but there are no "unbundled"
fonts (if I may borrow that term) in the archives. --wnl ]]
Any info appreciated.
unsigned *Wayne_Mesard(); MESARD at BBN.COM BBN Labs, Cambridge, MA
------------------------------
Date: Wed, 29 Jun 88 19:46:18 PDT
From: marsal at sun.com (Jack Marsal)
Subject: ONC Solution Guide questionaire
As the following cover letter indicates, I am looking for input from the
UNIX community regarding implementations of ONC/NFS or applications that
use RPC....Also, as they say in the publishing business, "time is of the
essence". We need to get the responses by July 29 to go to press on time.
Thanks very much!!
Jack Marsal
Sun Microsystems
Software Licensing
****************************************************************
June 29, 1988
Dear ONC/NFS Supporter,
The ONC/NFS Technology Group of Sun Microsystems is planning to publish an
Open Network Computing (ONC) Solution Guide. It will list available
implementations of ONC/NFS. The ONC Solution Guide is intended to be
useful to companies that have a heterogeneous computing environment.
If you have developed an ONC/NFS implementation from the public domain
specification, or if you have developed RPC-based applications, we would
like to have your input to the ONC Solution Guide.
The ONC Solution Guide will be divided into two sections: 1) ONC/NFS
implementations, and 2) RPC-based applications. Each ONC/NFS
implementation and each application will be described in approximately 1/4
page. We also envision a matrix chart showing which ONC services are
available on each operating system.
A copy of the ONC Solution Guide will be sent to all contri- butors. We
encourage contributors to share the information in the ONC Solution Guide
with customers and colleagues. We plan to update the information in the
ONC Solution Guide every 6 months.
To contribute to the ONC Solution Guide, please fill out the following
questionnaire and return it to Sun (see the address below) by July 29,
1988. As we will need your signature on file, we will need a hardcopy.
If you have any questions, or if you would like me to send you a hardcopy
of the questionaire, you may call me at 415-336-2181 or send email to
marsal at sun.com.
I look forward to your response!
Sincerely,
Jack Marsal
ONC Solution Guide Coordinator
Sun Microsystems, Inc.
2525 Garcia Ave., mail stop 12-33
Mountain View, CA 94043
********************************************************************
ONC SOLUTION GUIDE QUESTIONNAIRE
********************************************************************
Company name: ___________________________________________________
Street Address: _________________________________________________
Street Address: _________________________________________________
City: __________________________ State: _________ Zip: __________
Telephone: ____________________ email address: __________________
Telex: ________________________ Fax phone number: _______________
Contact information:
_________________________________________________________
ONC Solution Guide contact (the person to whom we should
address all future ONC Solution Guide mailings)
_________________________________________________________
Sales Contact (Contact name from your company to be
published in the ONC Solution Guide)
_________________________________________________________
Technical Contact (person to whom we should send
technical updates and information)
Name of ONC/NFS implementation or product which includes it:
__________________________________________________________
ONC/NFS features included in product:
[ ] Network File System (NFS) [ ] Network Lock Manager
[ ] Remote Execution (REX) [ ] Yellow Pages (YP)
[ ] RPC [ ] XDR
[ ] NETdisk
[ ] other ________________________________________________
Implementation Information:
[ ] Ported from ONC/NFS source code
[ ] BSD [ ] System V [ ] UNFS
[ ] Derived from public domain specification
Operating system to which your ONC/NFS implementation or
application has been ported (please be specific):
__________________________________________________________________
Tranport protocol (e.g., TCP/IP, ISO, etc.):
__________________________________________________________________
Are ONC/NFS features bundled with the overall operating system?
[ ] yes [ ] no
Product introduction date: _______________________________________
First customer ship date: ________________________________________
How is your product distributed?
[ ]direct [ ]manufacturer's reps
[ ]distributors other_____________________________
Pricing information: (indicate currency if not $US:____________)
Price for quantity 1 of this product, or if required,
price for a minimum-quantity purchase:
$________ for qty 1 $________ for min qty ________
Price for volume purchase, site license, or network
license, if any of these are available
$________ for ___________________________________________
Price for educational or non-profit institutions:
$________ for qty 1 $________ for ________________
___________________________________________________________________
PRODUCT DESCRIPTION
___________________________________________________________________
Please provide a brief written description of the ONC/NFS
implementation. We will use this description in the ONC Solution
Guide. Responses may be edited so as to maintain a consistent
style and format in the Solution Guide. Your description should
mention the features and benefits of your ONC/NFS implementation.
[[ Insert sufficient number of blank lines here. --wnl ]]
___________________________________________________________________
AUTHORIZATION FOR PUBLICATION
___________________________________________________________________
The information supplied about the above product(s) is correct to
the best knowledge of the undersigned company. The undersigned
company authorizes Sun Microsystems to publish this information in
the ONC Solution Guide. The undersigned company understands that
Sun will make every effort to ensure that the data printed is
correct. Sun Microsystems is not responsible for any inaccurate
information supplied to it.
Signature ____________________________
Name__________________________________
Title_________________________________
Company_______________________________
Date__________________________________
------------------------------
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