hello gavin, you are a source of good information as always. tks. for your feedback.
actually I do not need a grafic card on the server but I though it would be good to have a cheap basic one, just in case I would want to work on the server or use an attached beamer or so. to your other point. can you recommend a brand of raid controllers that will work fine? what about the disk. any basic recommendations for it (brand/size)? thanks a lot. uwe Quoting Gavin McCullagh <[EMAIL PROTECTED]>: > Hi, > > On Wed, 26 Dec 2007, Uwe Geercken wrote: > >> I know that the main components like lan, harddisk, ram and prozessor >> are important for the speed of the overall system. but I wonder if a >> quad-core system will give me superior performance. is edubuntu using >> the full power of such a prozessor and is this an optimal choice for >> serving aroung 10 pc's? or would it be better to use a dual core at a >> higher speed? > > The faster processor would have the ability to finish single tasks quicker > (eg encoding a video sequence). Multiple cores will usually give you more > cpu power overall but that power must be split up over different processes > or threads. As you will have multiple desktop users running lots of > processes, multiple cores will probably be more useful. Linux (including > edubuntu) has pretty good support for multiple cpus/cores. > >> I planned for following system: >> Intel Core 2 Quad 2,44 GHz >> 4 GB RAM >> Gigabit LAN >> Nvidia 8500 GT Grafic Card >> 500 GB Samsung Disc >> Gigabyte Mainboard > > If you're going to leave the server aside and have people log in to thin > clients exclusively (this is not a bad idea in general), that video card > will be a waste of money as it will not be used -- you might as well just > get a €30 one or use the on-board. You will probably need to use a > proprietary driver (generally not recommended) to get anything more than > basic performance from it¹. Unless you have a good reason to want it, I > would not recommend buying that card for a linux system. > > My other suggestion would be to consider buying two disks and using RAID1. > This should mean that in the event of a disk failure, your system will > continue to work while you source a replacement disk. Otherwise, the > entire system goes down until you replace the disk, reinstall and recover > from backups (several hours work at minimum). You could either get a SATA > RAID controller for this, or just use linux's in-built software RAID. > > http://en.wikipedia.org/wiki/RAID_1#RAID_1 > http://en.wikipedia.org/wiki/RAID > > Gavin > > ¹ This is true of the high end cards from both ATI and NVidia. The > situation is improving with ATI now as they have published specs to help > write free drivers. These drivers are in development though so aren't in > Ubuntu just yet. If you really need a flashy video card, I'd prefer ATI > over NVidia. > > > > -- > edubuntu-users mailing list > [email protected] > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/edubuntu-users > -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
