Στις 12-01-2010, ημέρα Τρι, και ώρα 22:39 +0100, ο/η Verner Kjærsgaard έγραψε: > Well, I've not got 100 clients but someting like 70 or so. They don't > run at the same time, perhaps 20 - 20 are active at the same time. The > swithes in use are 24 port swithes, hence the need for distributing > properly. > > I think the solution is to opt for the only real correct one...get new > switches that are NOT 1000/100 switches, but rather 1000/1000 switches... > > This way the switches may be uplinked together properly. I'm quite > convinced that the servers 1000Mbit netcard (just one) will handle the > traffic just fine.
* IF * your clients have 100 Mbps NICs, then upgrading the switches to 1000mbps won't help as much as you might expect. And you'll still have to watch out for the flow-control problem. I compared (with benchmarks) the full-gigabit case with the "gigabit server/100 mbps clients/switch with just 1 gigabit port" case, and found out that with 10 clients per switch, the network bandwidth was virtually the same. So * IF * your clients are 100 Mbps and you don't expect more than 10 clients online simultaneously from the same switch, and you'll be using your clients only as thin clients (no need for "talking" to each other), then I'd suggest that you kept the switches that you already have and try the "4 different subnets" approach. Of course if your clients have gigabit NICs, sure, upgrading your switches would help. Or if it's possible that 20 PCs will be online while connected from the same switch. Also keep in mind that the PCI bus has an upper limit (I think it's around 1 Gbps usually) so putting many PCI cards on the server won't help much, you'd need some PCI-e cards because that bus has bigger bandwidth. ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
