> Från: Mike Gabriel <mike.gabriel@...>
> Ämne: Re: Thin clients or Diskless WS?
> Till: debian-edu@... > Datum: tisdag 29 maj 2012 10:58
> Hi George,
> On Di 29 Mai 2012 10:23:48 CEST George wrote:
> > Hi,
> > We are planning to use skolelinux after summer. Problem
> is, we have some clients that are a bit slow, so we need to
> do an upgrade. The budget is, of course, a bit tight.
> > I have tried the HP t5630. It has 1GB memory and a 1
> ghz proc. Problem is it also uses the via VX800 unified
> chip. The support for that seems to be a bit jerky when it
> comes to Debian. It worked with squeeze for some time, but
> after the latest kernelupdate it does not work anymore. I
> guess its possible to make it work, but it seems a bit
> unstable at the moment.
> > The other option is buying some used computers, like
> these ones;
> > http://reuseit.se/sv/stationaera/hpcompaq-dc7800-usdt-e6750.php?group=prod_prod_grp-s1%2F107 > >
> > They are not much more expensive, but of course they
> take some more power and makes some more noise. I dont have
> any real experience of running a full setup of diskless
> workstations. It will be something like 25 of them (+50
> > Honestly I have a problem making a descission. I prefer
> thinclients, but we are not prepared to buy new ones, and if
> we are going to buy, at least they have to be at the same
> standard as t5630 or better, othervise they will not be much
> better then the ones we have (as T5530 and Siemens A230). So
> T5630 seems to be the type that are easy available used for
> a descent price.
> > Im just asking for advice. Biased or not.
> > /George
> Use diskless workstations.
> Give them 2-4gb of RAM.
> Link them up via a Gigabit network (100mbit/s is a show
> stopper nowadays).
> Provide the diskless workstation chroots via a fast server
> (SAS RAID with quite a bit of RAM cache on the machine),
> maybe also provide the chroots via a dedicated server (not
> via TJENER).
> Consider using a package from Petter that creates an icon
> cache for all installed applications so that menu rendering
> is sped up (ping Petter for that package, it is rather
> unofficial still, I guess).
> Make your machines boot before class, let them suspend2RAM
> after the boot process. Shut them down after class if not in
> Start the major applications within a virtual desktop
> session during the 7 o'clock boot process, so that most of
> the files (desktop, office, browser, etc.) are already
> RAM-cached on the diskless machine.
> mike gabriel, rothenstein 5, 24214 neudorf-bornstein
> fon: +49 (1520) 1976 148
> GnuPG Key ID 0xB588399B
> mail: mike.gabriel@...,
> http://das-netzwerkteam.de >
> https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb >