On Fri, 15 Jun 2007 05:56:47 +0100, Lee Portnoff <[EMAIL PROTECTED]> wrote:
> We have a building with 25 LTSP clients. We will open another location > across town. I need to choose to design the network. >A few topologies come to mind: > (1) to keep servers in building A and login from building B. However, > if there is a problem with the Internet, then all the computers in > building B, are down. > (2) to have servers in both buildings; but synchronization may be > problematic. (And will take bandwidth) > (3) to take a hybrid approach. Remote login as in topology (1); > however, each night 'Copy/Rsync/Unison' building A to building B. This > way in the event of Internet failure, building B can run locally. So > there I have nicely synchronized files, offsite backup, low bandwidth > usage. > note: (mainServer has dual Xeon processor and 8gb ram w/ raid drives) >So please cast your vote for 1, 2 or 3. Or make your own suggestion. > many thanks. You will need servers in both buildings, no doubt about that. Having been looking at live file system duplication recently, there are plenty of options you can look at for your file "synchronisation" which can happen consistently whilst there is an internet connection. Have a look at file systems like CODA, GFS, OCFS and their friends. Tsync is worth a look, though I couldn't get it to compile. In terms of logins, LDAP can be used to hold all login information. Each server that uses the login information from LDAP will used cached information when disconnected, and make appropriate updates when it can. Really this is the way to go for authentication. Using these technologies, you should be able to keep synchronised file systems and login, whilst also allowing internet connection free Have you also thought of doing your own bit of networking and constructing your own 802.11 / Laser Link / RONJA accross town, giving you networking redundancy between sites? -- From Ben Green ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _____________________________________________________________________ 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
