AMANDA DAQ: PC Specifications.

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• PC's for DAQ and Offline

  • PC's used as DAQ host PC's ("pamanda1/2"), for DAQ related work at MAPO ("pamanda3/4") and for offline computing in BOS (the twin "monica/hillary") are "Industrial 19-inch PCs".
    
  • Much attention had been put on higly reliable components, like HDs, PowerSupply, Fans, as well on exchangability of spare parts between the different PCs.
    
  • Whenever possible, we went for spec's like >3500m altitude and <10% rel.humidity with a maximum of cooling reserves, e.g. by extra fans mounted in the 19" PC-frames (cooling efficiency falls with pressure!).

  DAQ PCs

  As an example, DAQ hosts PCs pamanda1/2 (installed 1997/98) are 19" industrial PCs with
  - Peak610 Slot-CPU
  - PentiumPro 200MHz, 256kB Cache
  - 2*64 MB EDO 60nsec
  - Graphics: AtiExpression 2MB (PCI)
  - SCSI: Adaptec 2940UW
  - Eth: 2 x 3Com 3c509 Combo
  - HD: IBM DCAS 34330 UW-SCSI (5400/8.5ms) in frames with seperate fans
  - Floppy
  - Longlife Power Supply 85-265V, 60000h MTBF
  - all fans are longfile Pabst Fans

  Offline PCs

  As an example for offline PCs, the twin PC "monica & hillary" (installed 1998/99) is an 19" industrial PC frame with
  - 19" frame IPC414 with 3HE
  - Segmented Backplane 18 Slots (2x9: 4 PCI, 3 ISA, 2 PIGMG)
  - CD-ROM
  - Longlife PowerSupply 110-240V, 350W, 250000h MTBF
  and each two (we have a "twin PC") of:
  - Slot-CPU with 440 BX Chipset
  - Pentium-II 400 MHz, 128 MB
  - Graphics: ATI Xpert-XL 4 MB
  - SCSI: Adaptec 2940UW
  - Eth: Kingston (DEC 21140) or Intel EtherExpress Pro 10/100
  - HD: IBM DCAS 34330 UW-SCSI (5400/8.5ms) in frames with seperate fans
  - Floppy Mitsumi
  - all fans are longfile Pabst Fans

• New brands for future upgrades

  1.
  As an example for a possible upgrade in 1999/00 we cite an offer by Motorla for an 19" Pentium PC, with highly reliable power supply and Slot-CPU board. Please note certification for high altitude (4500m), low humidity (5% / 10%) and 100000hrs MTBF. Price of frame+CPU-board (333MHz) is ~6.400,-DM (as of summer 1999). Here are the details on the PPX770-P10 frame with an PV5300-266/333 board. 2.
  Here's another, more recent (summer 2000) web page for a german distributor.
  Click at "The product", and find a wide variety of Slot-CPUs (586/486/386 from 40...800MHz).

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Author of this page:
Ralf Wischnewski
08-August-2000