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Re: [K12OSN] Bang For The Buck



--- Julius Szelagiewicz <julius turtle com> wrote:
> On Thu, 17 Jul 2003, Ken Johnson wrote:
> 
> > I have a dilemma. At my own expense, I have created a 6 node K12LTSP
> > network for my sister's sixth grade class. This fall we would like to
> go to
> > 10 nodes.
> >
> > Our server is a 700Mhz Via CPU w/512meg of RAM and an 18Gig Hard Drive.
> > (This is all out of MY pocket!) The rest of our network consists of:
> >
> > 3 old Dell Optiplexes (Pentium 166 MHz) that we were able to purchase
> > refurbished from our local computer store for $29 each!
> > 2 old HP Pavilion 350's (333MHz AMD K6-2's) donated by friends.
> > 1 donated ancient Pentium.
> > One monitor is a refurbished 15in. Sony that we got for $60!
> > The other monitors we got from friends who were upgrading to larger
> monitors.
> >
> > Here is my question: With a REALLY limited budget, what are my best
> options
> > for supporting 10 Workstations?
> >
> > Should I build another server similar to the first and run the 4 new
> > workstations?
> >
> > If so, how do I make them operate together so that any of the students
> can
> > log in from any workstation and their work is saved to the same hard
> drive?
> > (Be specific here  I just started with Linux last summer.)
> >
> > Should I build a beefier server to support all 10 workstations, and
> convert
> > our present server to another workstation? Budget will permit maybe an
> AMD
> > 1900 and a Gig of memory (will that support 10 workstations?)
> >
> > The additional workstations will come from friends and parents
> donations.
> >
> > Our primary applications are Open Office and Mozilla.
> >
> > How can I get the most bang for my limited buck?
> >
> adding memory will give you the most bang for the buck. with 10
> workstations, I'd go at least 1GB, preferably 2GB. the reason is that you
> get no swap activity (super slow), and large buffer cache which
> alleviates the disk i/o waits. my $0.02, julius

I would concur.  Based on the myriad of posts on the subject RAM, Disk I/O,
and network speed seem to be the crucial factors in using LTSP...

Buy more RAM...  (now we're at $0.04)

James Jensen

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