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RAL Site report

RAL Site report. John Gordon ITD October 1999. J.C.Gordon@rl.ac.uk. Summary. Linux Farm NT Farm (Monday) Suns for BaBar (Friday) Disk and Tape Security(Wednesday) Y2K. Linux. Linux in use in most parts of CLRC Formed a user group to share experiences

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RAL Site report

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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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