Slow wiping of free space?

William2

New Member
How long would it take a modern sata hard disk with an empty 10GB partition to be wiped?

Roughly? Minutes, hours or days?
 

Joel

Active Member
Modern drives can achieve a sustained write speed of 40MB/s. 10GB=1024*10=10240MB, time will then be 256 seconds, or 4 minutes 16 seconds. This assumes that you didn't enable cluster tips erasures, which works based on the number of files on your drive.

Joel
 

spy1

Member
Are you referring to "erasing" the freespace - or "wiping" the entire disc?

I do a freespace erase every night (7 passes) and it's always done by morning (can't really give you hard and fast time estimates for any given particular size).

My computer has a 160GB HD. I always let it run when I'm done for the night, shutting down all non-essential programs in SYSTRAY, after having run both CCleaner and SBS&D. HTH Pete
 

Overwriter

Active Member
Hi spy1

spy1 said:
I do a freespace erase every night (7 passes)
Wow, you are a hardcore Eraser freak !! :shock: ........ :lol:

Can I ask why you choose the 7 pass ? Have you seen or heard of evidence that a single pseudorandom pass is insecure ?
 
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