nigel_bytes wrote:
Using an SSD as a backup drive isn't a financially clever move.
Avoid early SSDs; many used absolutely awful JMicron controllers.
Generally, SSDs are pretty good - until they 'fill up'.
Just like magnetic drives, they don't removed 'deleted' data.
Unlike magnetic drives, small file changes are not a trivial affair. For magnetics: the old data is simply physically overwritten; this convenient short-cut does not apply to SSDs. Instead, entire 'blocks' must be read, erased and rewritten (even if changing literally just 1 bit of data) - this results with the much despised 'slow down' as the SSD becomes used.
Win7 supports commands like "Trim" that ensure deleted data is handled effectively. Earlier versions of Windows do not support Trim and need a little TLC to keep their SSDs in good condition.
The recent (and more expensive) SSDs are so damned fast you tend not to notice the slow down anyway.
I've had a few SSDs myself.
I currently use an OCZ Vertex V1.1 in my main PC for the OS partition. It does what I want it to do and is pretty responsive and has remained so even though my current XP installation is about 18 months old (I do look after my OS). It is more responsive than a fresh Win7 installation on an i7 and a magnetic drive.
I now use my old OCZ Core as a scratch drive for video editing. This suffered from 'stutter' problems when I used it as my boot drive (my PC used to simply stop when doing many tasks).
Do not ever defrag an SSD (not without specially designed defraggers anyway).