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Fusion drive questions

memo06dic

memo06dic

macrumors newbie
Original poster
Jul 26, 2005
22
1
The new 2TB fusion drive is 128GB PCIe SSD and 2TB 3.5" 7200RPM right?

If I make a bootable flash drive, is it possible to reformat the 2 drives as separate volumes so I can manually use them as needed?

If this is possible, is this 'fusion' SSD the same speed as a BTO 256GB, 512GB or 1TB SSD?
 
1. Yes, it is.
2. Yes, you can.
3. No. The r/w speed of SSD both are about 1600~1800 MB/s, the SSD part of the Fusion Drive can achieve the same read speed, but the write speed is just half of it.
 
memo06dic said:
If I make a bootable flash drive, is it possible to reformat the 2 drives as separate volumes so I can manually use them as needed?
Click to expand...


I was just reading a site - somewhere i landed on a Google search - saying that yes you can do what you are asking - however if you ever reinstall OS X again - it would join them back together. That's what I read. It was on... I think Anandtech - Fusion Drive review on their site somewhere.
 
Oh yeah, sorry I just assumed you were referring to the 21.5" because that's what I have. My mistake! The 21.5" Fusion drive is paired with a 5400rpm drive... it seems the 27" pairs with a 7200rpm drive though.
 
G.McGilli said:
7200rpm if you order a 27" - it's on their specs page.
Click to expand...

Actually it doesn't say at all. The 7200rpm drive is just listed for the drive only on the lowest model. The Fusions drives do not have any speed specs on them at all. You can assume that they are 7200 rpm but Apple actually does not say what they are
 
roadkill401 said:
Actually it doesn't say at all. The 7200rpm drive is just listed for the drive only on the lowest model. The Fusions drives do not have any speed specs on them at all. You can assume that they are 7200 rpm but Apple actually does not say what they are
Click to expand...
You're right, it doesn't say it anywhere, but the 3TB Fusion Drive in my Late 2015 5K uses a 7,200 RPM drive.
 
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