But, speed aside, what about harddisk thrashing? It just doesn't seem like it's a good thing to make the harddrive heads slam around all the time. Speed is a secondary concern to me... I care about the life of my harddrive! Is this a valid reason to defragment?
EDIT: After re-reading my post, I dont think I made much sense even to myself
, so let me edit my post and add this, before I am misunderstood: some people claim that regular defragmentation can actually *reduce* the life of your HDD because of heavy read-write activity. I personally think this is utter rubbish, and the opposite is actually true.
And if your HDD fails because of defragging, then it was faulty to begin with....HDDs these days should be able to do some reasnoably heavy duty stuff and keep going without blinking. I believe they are engineered with this in mind.
I have never heard about any HDD failure due to defragging. But keep in mind that other factors also come into play such as the temperature, dust, humidity etc. I have a 80mm fan in the front panel of my Centurion 5 case blowing air over the HDDs, keeping them reasonably cool but not as cool as I'd like. Ideally a 120 mm fan would be nice, but it wont fit in the casing in front.
I dont see any cons of defragging....