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humbfig

macrumors newbie
Original poster
Mar 16, 2012
2
0
Hi
I have a 13" macbook pro unibody. I replaced the disk for an ssd and replaced the DVD drive for a disk bay. All is working fine, but I noticed something strange. Every 15 minutes or so, the disk starts working for no obvious reason. Activity monitor shows read and write at 20 or 30 MB/s for a couple of minutes and then it stops again.
The question is, what is my mac doing with the disk?
 
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