On Sat, 15 Sep 2007 13:41:18 +0200, David Van Assche wrote > Hi, > I understand that 128mb per client is needed from the server, but what if > the thin clients have ram themselves? Is there any way to utilise that, or > is it completely ignored? I ask because our thin clients are all laptops > with 512 mb ram.
With Edubuntu Feisty, your clients should have at least 128MB RAM. Your server also should have at least 128MB RAM per client. The client needs the RAM to properly display graphics and handle input devices such as keyboard and mouse events. The server needs the RAM to run the clients processes, such as Firefox and OpenOffice and any processes needed to boot the client. If you have a client with 512MB RAM it will all be used by default by X11 (the program that handles user input and displaying the graphics). This will be a little bit of overkill for general client use, but if you plan on running Firefox, the extra RAM will make its usage a little more stable as Firefox can chew up system memory when displaying graphics. Since these machines will have plenty of processor and RAM, you could use them as modified FAT clients. Central management could still be achieved by utilizing some sort of Diskless Remote booting from a Central image stored on a server and configuring that image to handle users via LDAP and NFS mounting /home. This will most likely be the route I take for teacher machines next summer and I am testing it right now as teacher machines in three labs. I haven't gotten the DRBL figured out exactly how I would like it yet, but the idea is you could make your changes to that single image and every time the machines boot they would reload the image. I have the start of a howto for this setup located at www.1-cs.com/ubuntu_ldap_howto.txt. This would make great use of more powerful clients and only require a server with a moderately quick hard drive array and some good network output. Once the machine would be booted they would run independent of the server. This is how I plan on making my single LTSP server serve over 100 clients and still be the central management location for 60-70 teacher/staff workstations. Another idea I have been toying with is possibly a server based Virtual Machine image which would make it easier to have different hardware at each workstation and still house a central image. Jim -- This message has been scanned for viruses and dangerous content by the Cotter Technology Department, and is believed to be clean. -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
