KT7 RAID - What "block size" is best for RAID 0?

BlueScreenVW

Senior member
Sep 10, 2000
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I'm setting up a RAID 0 array with 2 IBM 75 GXP (7200 rpm) drives on the HPT 370 controller of my KT7 RAID. So, now I'm wondering what block size will be the best for everyday home computing (office apps, games, etc). I run Win98 and Win2k. Links are very welcome (for performance comparisons, etc). Also, other good hints are also welcome (like, if there are any traps I could fall into)...

:)
 

cbuchach

Golden Member
Nov 5, 2000
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From what I have seen, a 16 KB strip size is optimal for most everyday applications. If you are going to be working with large files like video, then a large strip size would be more optimal.
 

BlueScreenVW

Senior member
Sep 10, 2000
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Yeah, sounds true. I found this at Paul's Unoffial Abit FAQ (excellent site):

Enter the Highpoint BIOS menu (using Ctrl-H) and use "Create RAID" to create your RAID-0 array. Select the disks you wish to use, a Block Size of 16k for optimum performance in most situations and then choose "Start Creation Process".

and later on:

Type "FORMAT C: /Z:32" to format partition C: Repeat for any additional partitions you created. Note that the "/Z:32" parameter formats the disk with a block size of 32x512B=16k - matching the stripe size. This has been recommended as optimum.

So that's what I'll do! Thanks!

:)