I just installed Windows 7 on my new OCZ Vertex 2. I heard that Win7 is optimized for use with SSDs and disables the prefetcher if one is detected, but I decided to check anyway. So I looked at
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters
...and noticed that "EnablePrefetcher" and "EnableSuperfetch" are both set to 3. Why is this and should I set these to 0 to save my drive?
If the system disk is an SSD, and the SSD performs adequately on random reads and doesn’t have glaring performance issues with random writes or flushes, then Superfetch, boot prefetching, application launch prefetching, ReadyBoost and ReadDrive will all be disabled.
So theoretically it's possible for these settings to be enabled on 'inadequately performing' drives, but I wouldn't expect it from my new drive...
I will also add that
fsutil behavior query disabledeletenotify
yields 0 for my drive, so according to this question: Confirming that Windows 7 is using SSD optimizations it means that it's recognized as an SSD. Also, it doesn't appear in the Disk Defragmenter's schedule.