Am Montag, den 20.03.2006, 17:07 +0200 schrieb Andy Rabagliati: > On Mon, 20 Mar 2006, R P Herrold wrote: > > > On Mon, 20 Mar 2006, Andy Rabagliati wrote: > > > > >I am not quite certain where the NFS server is in your setup ? > > > > > >Is it a single server for the whole network ? > > > > > >What was the disk arrangement on the NFS server(s) ? > > > > The NFS server (at the top right of the original diagram) was > > on a dedicated subnet on the back side of the LTSP servers, as > > indicated on the prior post. > > Sorry for mis-reading your first diagram. > > > Each LTSP server had a dedicated interface for that subnet. > > I considered, but did not add a dedicated link for each LTSP > > server directly to the NFS server with no other hosts on that > > network segment (simple enough to do - a cross-over cable and > > a NIC port would do it) > > > > On the NFS server, the /home export was in a separate spindle > > series (raid-5) from the OS, and from a code content export > > for the presentation tier. > > Was that a SCSI RAID ? > > I have battled with RAID5, hoping it would speed up /home access, but > with a limited budget and no UPS the rebuild times were too long. > > I have run into (what I think is) disk bandwidth problems with a mere 40 > clients - let alone your 200. > > One 100BaseT cable should comfortably take care of maximum transfer > rates from even a RAID5 array, no ?
Just a short comment here: Definitively not. It's absolutely no problem to fill a 100MBit-line even from an IDE HDD. Depending on the disk subsystem, you could pipe something more like 1GBit/sec through the line. Don't mix up 100Mbit and 100 MByte/sec. To compensate for network problems that might degrade performance, having two links is probably not a bad idea. Gigabit should be the better choice though, and considering the cabling and how error-prone multi-nic setups are imho, the few bucks more to be paid for Gigabit should be worth it. And then, you could still have separate physical networks for clients versus NFS versus external. Regards Anselm ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _____________________________________________________________________ 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
