On Thursday 01 March 2007 14:28, Peter Scheie wrote: > Martin Woolley wrote: > > On Tuesday 27 February 2007 13:39, Noel wrote: > >> Tadeu F. Oliveira wrote: > >>> Hi, Everybody > >>> does anyone have tried LTSP with some kind of load balance? > >>> Is there any try to use LTSP with OpenMosix or something such? > >> > >> Yes, we've tried LTSP with home-made load balancing. > >> > >> We set up two identical LTSP servers, _BOTH_ of them (that's the trick) > >> with DHCP server. The only difference between them (besides IP, of > >> course) is that each DHCP server pointed to himself as TFTP server, NFS > >> server and such. > >> > >> This way, the most loaded server is slower to answer the DHCP petition > >> of a booting client, thus the less loaded server answers DHCP first and > >> "gets the client". > >> > >> The results we've obtained at Ejercicios Resueltos are that there were > >> never more than a 20% difference in number of clients being served by > >> each LTSP twinserver. > > > > We do exactly the same thing. We have six servers, four Xeon 3GHz boxes > > and two Athlon 2GHz and as you would expect the Xeons pick up far more > > work. I'm amazed that the Athlons (remains from our original servers) > > manage to get a look in. Originally we had 6 of the Athlons and they > > supported 90 clients without too many problems; the Xeons have no probs > > at all. We've been running this method of load balancing for 3 years and > > I don't expect us to look to a more sophisticated solution. I should > > probably retire the Athlons but they are like an old jumper so I'm > > reluctant to switch them off. > > Martin- > Just curious: how are you handling user authentication and sharing the > /home directory among your servers, such that it doesn't matter which > server a user is connected to? > > Petre
NIS - we have a seventh server which handles authentication and hosts the user home dirs. This machine is NFS mounted on every other server as /home/MAUD, and each user has their home dir as eg /home/MAUD/ranar01 This means we only have to backup one server, which is RAID 5 in any case. Also, we have 2 LTSP suites, the main one served by the aforementioned 6 servers and another served by 2 more. When users go to the small suite, they again authenticate against maud so their files "magically" follow them across the school. OT Why is it called maud? All of our servers are named after The Simpsons. OTT But in the series Maud died.... I hope that this isn't an omen -- Regards Martin Woolley ICT Support Handsworth Grammar School Isis Astarte Diana Hecate Demeter Kali Inanna ************************************************************* This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify [EMAIL PROTECTED] The views expressed within this email are those of the individual, and not necessarily those of the organisation ************************************************************* ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _____________________________________________________________________ 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
