Drive to drive copy will be slowed if multiple copy commands are issued at once. It's physics. This might not be the case with solid state drives - haven't had enough experience with these in this capacity. But yeah, Finder copy for multiple files in one copy command copies serially. You're better off in this instance to wait until the first copy finishes before initiating the second.
On Fri, Aug 29, 2014 at 4:24 PM, John Moore bigfish@pacbell.net [Avid-L2] <Avid-L2@yahoogroups.com> wrote:
I'm racing to get files out onto an external usb transfer drive. The files are approx 75 GB in size. I started one and it est time at 44 minutes. Half way through it's transfer my second file was ready to copy. When I added it to copying it said 2 hour estimate of time. I figure that would drop down especially once the first file finished but it seemed like I'd be better off stopping the second file copy and restarting after the first file finishes. I figure bouncing between writing two files simultaneously for a single disk ext drive would take more time than transfering the files one after the other. Curious if this makes sense to anyone else.
I figure if I had both files to begin with and dragged them both over to the external the transfer would have been handled in a sequential manner, but I don't know if that's how a copy actually is managed by the finder. Can anyone enlighten me on this subject?
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Posted by: Mark Spano <cutandcover@gmail.com>
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