*BSD News Article 62002


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Server hardware considerations..
Date: 20 Feb 1996 22:29:25 GMT
Organization: Private BSD site, Dresden
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Message-ID: <4gdi05$gsj@uriah.heep.sax.de>
References: <Pine.LNX.3.91.960219204849.14523A-100000@gallup.cia-g.com>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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Stephen Fisher <lithium@cia-g.com> writes:

> RAM: 16 meg to start with, maybe 32, There aren't any special 
> considerations I should take when getting the RAM are there?

Too bad that alot of chipsets don't support parity any more.  I would
otherwise suggest you sticking with parity-SIMMs.

> Network: 3c509B.  This is what I have now and it seems to be a very good 
> card.

Hmm, i'm not convinced of it.  Maybe it's only the FreeBSD driver
that's not that robust like the driver for (e.g.) NE[12]000/3c503/
WD80[01]3 cards.  However, going PCI, better get a good PCI card.  I
think the DEC-21040 based cards work very well.

Failing that, plain ol' WD8013 or Lance-based cards (Isolink, NE2100)
are the best choice for ISA, at least for FreeBSD.  They all are able
to saturate an Ethernet without very much CPU consumption.

> Tape backup: SCSI.. I have no idea what is best, I am using a cheap 
> and slow floppy-tape drives right now and haven't been very pleased.  

DAT, but make sure that you cycle around enough cassettes, so failure
of a single one wouldn't be catastrophic.  DAT tapes are a bit
fragile, and they are told to have a rather high abrasion.  There are
also people who generally distrust any helical-scan method drives, but
that's becoming religous. :)

Alternatively, i'm a happy user of a Tandberg 2.5 Gig QIC streamer
right now (5 GB with hardware compression).  The data rate is as high
as DAT (source of comparision: the HP-DAT at work) when using 1 GB
cartridges, much higher for 2.5 (or 5) GB.  In the latter case, except
for directly dd'ing, my disk is too lame to keep the drive
streaming. :)

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)