[K12OSN] PD for staff (really OO)

[Andrew Fournier]

There are a couple issues with the so-so servers. They leave me in the
position of needing a central home (though that is needed for user
mobility anyway) and will ide drives handle 20+ clients? would
offloading some processes (as well as home ) help? surely exporting home
will help a lot. 
Cheap refurbished scsis would help but that is hard to get past
purchasing.....

Thanks,
A. fournier
Palmer Alaska
On Sat, 2004-04-17 at 21:10, Les Mikesell wrote:
> On Sat, 2004-04-17 at 13:33, Andrew Fournier wrote:
> > Yeah, I thought about that after my post-- that past a point I might be
> > running too much hardware just to share out an office suite. I'll
> > experiment on a smaller scale and see how it works out. My interest in
> > doing the system with central app and home servers is that I think we
> > might end up seeing more or less generic dell classroom servers (cheap
> > hard drives) and I think it might actually easier to pitch a few big bad
> > app servers than a bunch of beefy classroom servers. We have been using
> > Novell, you see....
> 
> I think the total amount of RAM involved is going to determine
> most of the price and performance, regardless of how you slice
> and dice, and a flock of so-so boxes will probably come out
> cheaper than a few high end monsters.  Plus, it is always handy
> to have a spare or two and that's easier with cheaper boxes.
> 
> > BTW is there ANYTHING novell provides that I can't do with linux? I
> > can't think of anything....
> 
> I don't think anything is really missing with Linux, but you'll
> have to work a lot harder to get a central LDAP authentication
> server set up.  It would be nice if someone could package that
> with the current schemas for PosixAccount/SambaAccount and
> whatever it takes to direct email delivery already set up with
> a GUI or web based user management tool.  I think the parts
> are all available but so far I haven't seen anything that works
> out of the box.
> 
> ---
>   Les Mikesell
>    les at futuresource.com
> 
> 
> 
> 
> >  Sat, 2004-04-17 at 09:28, Les Mikesell wrote:
> > > On Fri, 2004-04-16 at 23:25, Andrew Fournier wrote:
> > > > This would seem to imply that large central ( or clustered?) application
> > > > and home servers connected to from lab and classroom level ltsp servers
> > > > would be what is wanted for a building wide implementation, right? This
> > > > kinda brings up kimberlite & LVM for the home server.....
> > > 
> > > Having a central authentication server and home directories makes
> > > sense, but whether you should offload apps from the local
> > > desktop servers or not is a trade-off that is going to depend
> > > on local circumstances.  You will gain some efficiency by
> > > running more copies of the same app on the same machine where
> > > linux will share the memory, and perhaps some stability because
> > > upgrades may be done separately on these machines.  However
> > > you now have to maintain custom menus and machines that
> > > are not all identical clones. You also may need a more expensive
> > > network backbone to match the performance of a classroom
> > > server with a gigabit uplink to a classroom switch behind the
> > > local server.  A compromise might be to start with a 'staff'
> > > application server where you maintain programs not needed
> > > in every classroom but run all the student desktops and apps
> > > from identical/interchangeable local servers.
> > > 
> > > ---
> > >   Les Mikesell
> > >    les at futuresource.com
> > > 
> > > 
> > > 
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