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Linux Farm Report Summary and IT Hardware Configuration Overview

Learn about the Linux and NT farms, Sun systems for BaBar, disk and tape storage, and security updates discussed in the October 1999 report by John Gordon. Explore hardware configurations, procurement lessons, system monitoring, and future plans for expansion. Discover the use of Redhat 5.2, ARLA, and NQS 5.4 software in this comprehensive summary.

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Linux Farm Report Summary and IT Hardware Configuration Overview

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  1. RAL Site report John Gordon ITD October 1999 J.C.Gordon@rl.ac.uk

  2. Summary • Linux Farm • NT Farm (Monday) • Suns for BaBar (Friday) • Disk and Tape • Security(Wednesday) • Y2K

  3. Linux • Linux in use in most parts of CLRC • Formed a user group to share experiences • For central HEP systems more Linux cpu power than any other system

  4. Hardware Configuration • Twenty built to measure PCs • SuperMicro Dual Motherboard (with SCSI) • Two Pentium II 450 • 10GB 5400rpm IDE HDA • 256MB ECC memory • 100Mbit Ethernet (tulip or Intel) • Cheap graphics card • Usually run without monitor - (BIOS must allow this)

  5. Pounds per MHz

  6. Cloning • Presently trivial but labour intensive • System image created by dd onto SCSI tape • memory resident Linux system run from floppy (Tom’s Root and Boot) • dd from tape to system disk • Need to become smarter! • Kickstart? • Drive Image (or similar software)? • Any other suggestions?

  7. Software • Redhat 5.2 (kernel 2.0.36) • ARLA (Free AFS Software) • Generic NQS 5.4 - Free but not recommended - evaluating commercial products • Mainly Fortran 77 - therefore use g77 compiler (egcs 1.1.1). Some C++ • autorpm for system updates

  8. Summary • Procurement Lessons • System Monitoring • Redhat 5.2 needed several changes • Problems

  9. Plans • Need to move to Redhat 6.0 (or 6.1) • Disk mirroring for interactive service? • Next expansion will be late Autumn. Probably based on dual Pentium 600. • Possibly further expansion early next year (probably Pentium) • Further expansion 2H2000 when Multi-processor AMD Athlon systems will be extremely interesting possibility.

  10. Disk • Always growing • 1.25TB general user disk servers • 4.5TB for BaBar • Plan to test an IDE server

  11. Tape • 30TB IBM3590 in 3494 robot • STK robot idle - considering upgrade to Eagle drives.

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