Set up: Adaptec 5405, X25-E x 2 in raid 0. Win 7, no tweaks.
The raid strip sizes were reconfigured online using Adaptec Storage Manager without rebooting or formatting the drives. The raid strip that the OS was installed on originally was configured at 128K, from here it was changed to 16K, then 1024K, then 512K then 256K and then back to 128K.
Reconfiguring the strip size online with the Adaptec Storage Manager seemed like an easy option to save time testing various strip sizes on freshly formatted drives, but may well have skewed the results in the process, albeit that would be an interesting result in itself.
The easy option actually ended up taking more time as a fresh install of Windows 7 takes around 10 minutes and reconfiguring the strip size took around 20 minutes. Next I may try the same exercise but with a reformatted drive for each strip size.
Before the first reconfiguration ATTO produced the following result with a 128K strip. (Didn't think to run CrystalMark)
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