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Old 04-22-2007, 06:42 PM  
DirtyDave
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Join Date: Jul 2003
Location: TX
Posts: 198
The CERC Raid card is a hardware Raid-5 card with 6 channels. There should be a web based app that you use to manage the card and to run diagnostics.

Things to check for performance issues.
  1. What is the cache on the drive: 2mb, 8mb, 16mb?
  2. What is the speed: SATA, SATA2-150, or SATA300 ?
  3. What speed is the card rated at?
  4. Do you have a failed drive in the array?
  5. Is the BIOS of the drives up to date?
  6. Is the BIOS of the card up to date?
  7. Are the RAID drivers in the OS up to date?
  8. In the task manager, show one graph per CPU. Is any one CPU maxed out?
  9. Try disabling services and programs to see if you get a sudden performance boost.

The way the CERC works is that it creates a virtual pool of space that is composed of whatever space from the multiple drives that you assign. When you set up a drive letter you are actually creating a virtual drive that is carved out of the pool.

David.
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