On Wed, 2007-10-03 at 10:25 +0700, Donny Christiaan wrote: > David Johnston wrote: > > Donny, > > I can't tell you which server to buy, but I can offer you a few things > > to keep in mind.> > > 1. AMD Opterons > > 2. 3ware's 9000 series SATA RAID controllers > > 3. SAPGUI will work & same IP address. > > Hi David, > > Thanks a lot for your valued reply. If you don't mind, can you send the > information of your server specification? > What Distro do you use for LTSP Server? > I think I'll change my plan from Ubuntu 7.04 to K12LTSP-6 > I hope it will support my future RAID Controller :) > I've tried connect(ing SAPGUI) from 1 WinXP (1 IP) with multiple > login and it work well
Yes, we use Opterons in our servers. Here is an example server for 20 users: Two (2) Dual-Core AMD Opteron 2214 6 GB RAM 3Ware SATA RAID card with BBU Red Hat Enterprise 5, Centos 5, or K12LTSP 6. The number of CPUs will vary based on workload. SAPGUI doesn't need a lot of processing power. If, on the other hand, you were going to run 20 sessions of OpenOffice simultaneously, you might want more or faster CPUs. When budget constraints make it and issue, I generally prefer two (2) slower CPUS over a single fast CPU, since this will give more consistent response times (a single CPU can get bogged down working on a long-running task). The amount of RAM will vary based on workload. Further, RAM usage per user can vary considerably from day to day. Firefox in particular is a known memory hog; it helps to have everyone close their browsers when they leave for the day. For a standard office situation, figure on 512MB for the server and 256MB per user; if everyone is doing the same thing all day, you may need more or less. In your situation, I might set up a large desktop (say 1GB RAM) as a prototype server to be used by two or three SAP clerks for a month. Monitor RAM usage, and use the results to determine how much RAM your new server will need. The number of hard disks, and therefore which 3Ware card, will vary with projected storage needs and requirements. For example, if the users' data is almost exclusively in SAP, and they are only using the terminals to run SAPGUI, you don't really need the 3ware card and can get away with a single drive (or mirrored drives if you've got room in the budget). On the other hand, if the users will be storing large volumes of business-critical data then you may need a multi-terabyte SAN. -David ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _____________________________________________________________________ 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
