[frgeek-michiana] Re: Lab Notes, 1/18/04
- From: Richard Zimmerman <richard@xxxxxxxxxxxx>
- To: frgeek-michiana@xxxxxxxxxxxxx
- Date: Fri, 21 Jan 2005 12:55:12 -0500
:: Light at the End of the Lab
As we draw down the inventory in the storage room at the church, I can
see the space opening soon to install the LTSP lab. It is time to
seriously discuss what our hardware needs are for a functioning teaching
lab. We need to plan for purchasing an adequate server for a 12+
workstation LTSP lab. I think we should also consider purchasing a
digital projector and screen or finding a donor.
I did a quick search on ltsp.org... They recommend:
100 - 150mb per workstation
a 10/100 switch w/ 100mb to the server
Several examples I read gave a 2.8g P4 w/ 1 gig ram and a SCSI 320 drive
handling 8 workstations acceptably well.
I come from the school of planning for some extra capacity. I'd say forget
cup speed, go for FAST Front Side Bus / Memory speed. That's where the true
bottle neck is going to be. Lot's of memory. 2 gb. Instead of a SCSI 320
drive, get a RAID-1 SATA setup. Most disk operations are read. By using RAID-1
we can get a 2 for 1 in read speed verse write. Fairly cheap to buy.
If we want to consider it, maybe building our own box.
http://compgeeks.com right now has a dual 1.8g XEON board w/ cpu's for $347.50
(http://www.geeks.com/details.asp?invtid=S2720GN-2-XEON18&cat=MBB)
Just some thoughts.
We have enough NetVista thin clients to populate the lab. They are small
and quiet -- perfect for a lab. Do we sell them? Do we use them?
Do we have any Net vistas already converted at the lab? We were talking of
running LTSP on Debian and I've got everything at home installed, just need to
config it. I'll need a Netvista to test with.
Goose
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