Speed of copying large files in Windows 7 slows down significantly over time
Posted on 2012-09-05
I'm running Microsoft Windows 7 on a Dell Precision 690. The root drive (OS drive) is a SSD 80GB intel drive. It's working fine. It also has a Intel RAID controller card (SRCS16) with three drives connected to it. When I copy a large file (1GB or more) from the root to the RAID array the speed starts off very fast, but then comes to a crawl. For example, the transfer speed start around 170MB/s and slows to 6MB/s. So, the transfer issue is NOT from a network drive to an internal drive, it's from an internal drive to another internal.
I upgraded the RAID to the latest drivers from intel and still no change in transfer speeds. No anti-virus software is running on the machine, so that shouldn't be interfering, either.
Why does such a basic component of the OS behave so poorly? How do Microsoft programmers sleep at night?
In all seriousness, if any of you all have any information I can use to solve this problem before I resort to testing a new drive that would be great!
Thank you for your time and help!