Fusion Drive

PrePressAcrobat · Nov 2, 2012, 10:30 PM

I ordered a Mini server 2.6
with
the 2 HDDs
From OWC - I ordered a 120 extreme SSD
and
a 750 7200 HDD.

After I swap out the drives -
can I run these as a Fusion Drive on a mini
and
is it worth it?

There will be ...
the operating system
and
100 GB of heavily used files - daily (continually)
with
500 or so
GB files accessed occasionally (semi-daily) in storage.
-
Will Fusion Drive
allow the entire 870 GB
to be set up as a 435 GB mirrored RAID1?

MSD

MatthewAMEL · Nov 2, 2012, 11:06 PM

No. I think you have a misunderstanding of how Fusion Drive works.

It's not RAID, but Tiered Storage.

http://en.wikipedia.org/wiki/RAID

http://en.wikipedia.org/wiki/Automated_Tiered_Storage

You can use RAID and Tiered Storage together, but I have no idea if CoreStorage supports that on OS X.

You will get the capacity of your drives - 10% useable space for a single Logical Volume.

I believe it's worth it. I am running a DIY Fusion Drive on my 13" MBP (240GB SSD, 500GB HDD). From what you said, you are exactly the kind of user Apple thinks would benefit.

StevenT42 · Nov 3, 2012, 04:15 AM

While you can install an SSD and HD in a Mac mini server, I doubt very seriously that they will function together as what Apple calls a Fusion Drive.

StevenT42 · Nov 3, 2012, 04:21 AM

I take that back ...Google seems to think otherwise.

Bierboy · Nov 3, 2012, 06:57 AM

And, of course, Google knows all.....

helveta · Nov 3, 2012, 09:21 AM

I have the same configuration. I saw a post a couple of days ago that said that the support for fusion drive was built into O'S X and that ther was a way to turn it on in terminal. It seemed too complicated for me, but I'm hoping someone will come out wit an add on that will do it. I'm in no hurry, I don't use the 750gb drive now.

helveta · Nov 3, 2012, 09:32 AM

Found the link:

http://jollyjinx.tumblr.com/post/346...ince-apple-has

alexdd · Nov 3, 2012, 09:35 AM

It takes only 3 minutes and the instructions are here
http://www.mac-gamer.net/how-to/roll...-fusion-drive/
I booted from an external drive

alexdd · Nov 3, 2012, 09:37 AM

And here is the example
http://forums.macrumors.com/showpost...&postcount=214

alexdd · Nov 3, 2012, 09:44 AM

Blackmagic test for Fusion

Nov 2, 2012, 10:30 PM	#1
PrePressAcrobat macrumors member Join Date: Nov 2010	Fusion Drive I ordered a Mini server 2.6 with the 2 HDDs From OWC - I ordered a 120 extreme SSD and a 750 7200 HDD. After I swap out the drives - can I run these as a Fusion Drive on a mini and is it worth it? There will be ... the operating system and 100 GB of heavily used files - daily (continually) with 500 or so GB files accessed occasionally (semi-daily) in storage. - Will Fusion Drive allow the entire 870 GB to be set up as a 435 GB mirrored RAID1? MSD
	0

Nov 3, 2012, 04:15 AM	#3
StevenT42 macrumors regular Join Date: Jun 2010	While you can install an SSD and HD in a Mac mini server, I doubt very seriously that they will function together as what Apple calls a Fusion Drive. __________________ 2012 Mac mini, 2.6GHz i7, 16GB RAM, 1TB Fusion Drive 2011 13" MacBook Air, 1.7GHz i5, 4GB RAM, 256 GB Samsung SSD iPad 3 64GB WiFi+LTE iPhone 4S 64GB iPod Classic
	0

Nov 3, 2012, 04:21 AM	#4
StevenT42 macrumors regular Join Date: Jun 2010	I take that back ...Google seems to think otherwise. __________________ 2012 Mac mini, 2.6GHz i7, 16GB RAM, 1TB Fusion Drive 2011 13" MacBook Air, 1.7GHz i5, 4GB RAM, 256 GB Samsung SSD iPad 3 64GB WiFi+LTE iPhone 4S 64GB iPod Classic
	0

Nov 3, 2012, 09:35 AM	#8
alexdd macrumors member Join Date: Oct 2012	It takes only 3 minutes and the instructions are here http://www.mac-gamer.net/how-to/roll...-fusion-drive/ I booted from an external drive Attached Thumbnails
	0

Nov 3, 2012, 09:44 AM	#10
alexdd macrumors member Join Date: Oct 2012	Blackmagic test for Fusion Attached Thumbnails
	0

Nov 2, 2012, 11:06 PM	#2
MatthewAMEL macrumors 6502 Join Date: Oct 2007 Location: Orlando, FL	No. I think you have a misunderstanding of how Fusion Drive works. It's not RAID, but Tiered Storage. http://en.wikipedia.org/wiki/RAID http://en.wikipedia.org/wiki/Automated_Tiered_Storage You can use RAID and Tiered Storage together, but I have no idea if CoreStorage supports that on OS X. You will get the capacity of your drives - 10% useable space for a single Logical Volume. I believe it's worth it. I am running a DIY Fusion Drive on my 13" MBP (240GB SSD, 500GB HDD). From what you said, you are exactly the kind of user Apple thinks would benefit.
	0

Nov 3, 2012, 06:57 AM	#5
Bierboy macrumors newbie Join Date: Oct 2012 Location: East Moline, Ill.	And, of course, Google knows all.....
	1

Nov 3, 2012, 09:21 AM	#6
helveta macrumors member Join Date: Mar 2012	I have the same configuration. I saw a post a couple of days ago that said that the support for fusion drive was built into O'S X and that ther was a way to turn it on in terminal. It seemed too complicated for me, but I'm hoping someone will come out wit an add on that will do it. I'm in no hurry, I don't use the 750gb drive now.
	0

Nov 3, 2012, 09:32 AM	#7
helveta macrumors member Join Date: Mar 2012	Found the link: http://jollyjinx.tumblr.com/post/346...ince-apple-has
	0

Nov 3, 2012, 09:37 AM	#9
alexdd macrumors member Join Date: Oct 2012	And here is the example http://forums.macrumors.com/showpost...&postcount=214
	0

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