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Testbed and Methods

The following benchmarks were used:

  • IOMeter 2003.02.15
  • WinBench 99 2.0
  • FC-Test 1.0

Testbed configuration:

  • Intel SC5200 system case
  • Intel SE7520BD2 mainboard
  • Two Intel Xeon 2.8GHz CPUs (800MHz FSB)
  • 2 x 512MB PC3200 ECC Registered DDR SDRAM
  • IBM DTLA 307015 hard disk drive as the system disk (15GB)
  • Onboard ATI Rage XL graphics controller
  • Windows 2000 Professional with Service Pack 4

I used the latest BIOS and drivers for the controllers, downloading them from the manufacturer’s website.

The controllers were installed either into a PCI Express x8 slot or into a 64-bit/66MHz PCI-X.

 

The Western Digital WD740GD (Raptor 2) hard disks were installed into the standard boxes of the SC5200 system case.

I tested the controllers with four HDDs in the following modes:

  • RAID0 – all the controllers
  • RAID10 – all except for the AAR-1420SA (due to technical reasons)
  • RAID5 – only for RAID5-supporting controllers, i.e. the AAR-2820SA and the ASR-3405

The controllers were set at the Performance mode for maximum performance during the tests. This mode allows deferred writing and look-ahead reading for both the controller (in its own buffer memory if available) and the disks. The Performance mode should not be used without a cache battery because there is a high risk of losing data in case of a power failure.

 
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