Linux in Mannheim
Linux at RUM
- 1995: Web stations all around the university
- 1996: Trumpf Beowulf Cluster
10 P133 SMP, Ethernet. Applications: PVM, MPI and a distributed indexer and search engine. First experiences with Apache on Linux
- 1996: Various databases: TOP500 Database, History database, RUM Library
- 1997: Siemens Primergy Quad PPro200. As node 11 in the trumpf cluster
- 1997: Comyc Cluster
8 PPro 200 SMP, Myrinet, diskless nodes
- 1997: As a Desktop with KDE and WindowMaker
- 1998: WWW Server for www.top500.org
- 1999: Cooperation with Siemens on testing and benchmarking SAP R/3 with Oracle on Siemens Primergy.
- 1999: Samba PDC (Primary Domain Controller) for HPC/WWW Group. File Server, Print Server..
- 1999: top500.org powered by Siemens Primergy
- More projects planned
- We are neither Yahoo nor Lycos....
- but to have 257.245 hits in one day is really encourging....
- Linux can replace windows NT to control domains (PDC).
- Used to provide file and print services.
- Web Administration Tool (Swat) available
- Easier local and remote administration.
- Better performance:
- 2.0.0 had poor SMP support (First stable kernel series with SMP support)
- SMP needs applications which use SMP capabilities
- Quad SMP on Primergy seems to work with a noticable stabiltity
- High availabilty (Uptimes of 100 days and more)
- HPC programing environment freely available
- Interconnect hardware support available
- Diskless configurations stable and ease administration
- Highly scalable: add or remove nodes whenever necessary
SAP R/3 in Mannheim
- 1998-: SAP R/3 (IDES) on RM1000
- 1999-: SAP R/3 on Primergy 870 running Linux
Linux vs NT
Oracle Benchmark Queries: Linux vs NT
- Security against intruders from the network:
- At least as good as other unices
- Better and widly proven security concepts than NT
- Securtiy agains viruses: Currently on 2 known viruses among other 40.000 known viruses (April 99).
- Reliable back up solutions (BRU, ADSM client and soon Networker)
- High-Availablity through solutions from Wizard/Bee.
- Linux is Year 2000 proof
- Problems will appear first in 38 years (2038).
Funktionsvergleich: Linux vs NT
- Community Help: The Linux Documentation Project maintains dozens of how-to files covering every imaginable subject, including installation, DOS emulation, networking, and using Cyrillic characters.
- Check Out Newsgroups: Check out the wide variety of Linux-based Usenet newsgroups, including comp.os.linux.misc, comp.os.linux.setup, comp.os.linux.questions, and alt.os.linux.
- Other Linux Users: Linux user groups have cropped up around the globe
- Shell Out Cash: If your company needs Linux support--even around the clock--it's available. Both Red Hat and Caldera offer full-time, phone-based tech support help, either on a per-incident or annual contract basis. In addition, there is now support from software and hardware vendors like Siemens, IBM, Compaq.....
- Linux "common channels" support using specialized news groups and mailing lists has a great value.
- Direct contact with the main developers
- Direct contact with users with the same problem
- Fast response and advice ( ~ 1 hour response time is common)
- An alternative to "commercial support" but without guarantees
- Hardware and Software support directly from vendors recommended
- By mission critical application 24/7 support contracts recommended
- Linux is growing in popularity not because of the hype surrounding it, but "because it does what people want it to do".
Linus Torvalds said to the crowd at the Spring Comdex show 1999.
- Bill Gates: "Certainly, we think of it as a competitor in the student and hoppyist market. But I really don´t think in the commercial market we´ll see it in any significant way."
von Anas Nashif
© Universität Mannheim, Rechenzentrum, 1999.