Nanael Posted November 19, 2012 Share Posted November 19, 2012 Hi everyone, Now 1 month since Apple introduced us to his new tool called « Fusion Drive » But what is it? It's simply a tool to combine an SSD with a HDD and make a single disc says "logical". On this volume, the OS and applications are on the SSD while the files on the HDD. Yes, but what's the advantage over a system with two separate disks? And well, Fusion Drive takes care of automatically put files that are used frequently on the SSD to gain speed, while the rest is stored on the HDD. In addition, there is nothing to do. Everything is automatic. On the other hand, who says combine two disks say combined the risk of failure. So for all those who will try the Fusion Drive experience, think you make a Time Machine backup (or other). Apple released the Fusion Drive option for €250 (without saving of space compared to the standard version). So the question that some developers are asked is:"Is Fusion Drive configurable on an old mac?"[/ url] Well Yes, and even better, Yes on unsigned Apple hardware. Let me explain; It is possible to create a logical disk with an ocz SSD, a WD HDD in USB and a seagate SATA HDD. Short with everyone including our hackintosh But how are we doing? And well, you need at least two physical disks (the best being an SSD and HDD, but no obligation), a USB key to install osX 10.8.2 and a little patience; this manipulation is possible from osX or the osX Installer. [note=attention]What you need to know: Create a logical drive deletes all data I am not responsible for troubleshooting;) [/note] Part I : Creation of the FusionHD First, we launch the terminal and we list the disks with the following command: diskutil list The result looks like this: I'll use my drive n ° 5 and n ° 6 (Yes it is a HDD in USB and a USB;)) Next, we'll create the logical volume with this command: sudo –s diskutil cs create "Fusion Drive" disk5 disk6 The result looks like this: Well hold the line with written LVG UUIDS and copy it « 9C0EB8E8-8525-46EF-85EF-FC7BB6A44823 » for me. You will say, "I see nothing?" it's normal, it just created the disk, not the Volume So, let's create it with this command: diskutil cs createVolume 9C0EB8E8-8525-46EF-85EF-FC7BB6A44823 jhfs+ "FusionHD" 100 % And here is the result: You now have a physical FusionHD with your two disks disk. Part II: Make FusionHD Bootable Now that you have installed osX 10.8.2 on your new disk Fusion Drive, the problem is going to be to start it without "help". For this you need the folder of chameleon. First, we will modify our org.chameleon.boot.plist by adding this: rd=uuid boot-uuid=9C0EB8E8-8525-46EF-85EF-FC7BB6A44823 I get the following result: Don't add this, it could break Facetime and iCloud Now, let's copy our extra file on s3 partition of our two disk. To do this, we do like this: sudo –s diskutil list I get this: Now, we are going to mount those partitions to copy the extra folder in: diskutil mount disk5s3 cp -R /Volumes/Machintosh\ HD/Extra /Volumes/Boot\ OS\ X/ diskutil unmounts disk5s3 diskutil mount disk6s3 cp -R /Volumes/Machintosh\ HD/Extra /Volumes/Boot\ OS\ X/ diskutil unmounts disk6s3 Do it again for files boot0 and boot1h, simply swipe your Extra folder in the terminal window to directly gain the right path. diskutil mount disk5s3 cp -R /Volumes/Machintosh\ HD/boot0 /Volumes/Boot\ OS\ X/ diskutil unmounts disk5s3 diskutil mount disk6s3 cp -R /Volumes/Machintosh\ HD/boot0 /Volumes/Boot\ OS\ X/ diskutil unmounts disk6s3 diskutil mount disk5s3 cp -R /Volumes/Machintosh\ HD/boot1h /Volumes/Boot\ OS\ X/ diskutil unmounts disk5s3 diskutil mount disk6s3 cp -R /Volumes/Machintosh\ HD/boot1h /Volumes/Boot\ OS\ X/ diskutil unmounts disk6s3 And finally, you need to restart your computer into thinking to put one of the two disks as a priority in order to start on it. Part III: Test of the FusionHD next coming soon The original post is from www.mac-on-pc.fr 3 Link to comment Share on other sites More sharing options...
mitch_de Posted November 19, 2012 Share Posted November 19, 2012 Thanks! The only thing i dont like of Fusion is, that the used HD can only hold 2 Partitions. One used together with fusion and one without. I have more partitions than 2 on my disks. Or have i undestand something wrong in the apple tech docs which says about only one partition more than fusion partition? Link to comment Share on other sites More sharing options...
Nanael Posted November 19, 2012 Author Share Posted November 19, 2012 You have right, but i like to don't have to organise my HDD and SSD Link to comment Share on other sites More sharing options...
p.H Posted November 20, 2012 Share Posted November 20, 2012 Thanks for introduction and tutorial. But I still prefer to decide which file to be located on which drive myself. 1 Link to comment Share on other sites More sharing options...
ctroncosor Posted November 20, 2012 Share Posted November 20, 2012 Last weekend i used a ssd hdd and a sata 3 drive to make a fusion drive, just as described above, the only problem is icloud and facetime, theirs no way to activate them. Link to comment Share on other sites More sharing options...
Nanael Posted November 20, 2012 Author Share Posted November 20, 2012 It's strange because I use fusion drive and iCloud and FaceTime are working like a charm! Link to comment Share on other sites More sharing options...
ctroncosor Posted November 20, 2012 Share Posted November 20, 2012 How did you activated it Nanael, because in my case i have appstore ok and iTunes. Link to comment Share on other sites More sharing options...
Nanael Posted November 20, 2012 Author Share Posted November 20, 2012 I have done nothing ^^ Only put my ID en Password and I was good Sorry to can't help you @p.H: I was doing it myself but with the time now I prefere to let Fusion Drive do it for me and have a backup in case of failure Link to comment Share on other sites More sharing options...
THEHAWKs Posted November 20, 2012 Share Posted November 20, 2012 Nanael regenerate your Serial number that may fix it Link to comment Share on other sites More sharing options...
ctroncosor Posted November 20, 2012 Share Posted November 20, 2012 Yep i think it has it to do with the serial number, because i checked twice LAN0 and ARPT devices in booth locations 0 and 1 and no way it doesn´t fix up. Link to comment Share on other sites More sharing options...
Nanael Posted November 20, 2012 Author Share Posted November 20, 2012 Nanael regenerate your Serial number that may fix it I have no problem me ^^ Link to comment Share on other sites More sharing options...
ctroncosor Posted November 20, 2012 Share Posted November 20, 2012 Thanks Nanael. Link to comment Share on other sites More sharing options...
Nanael Posted November 20, 2012 Author Share Posted November 20, 2012 You are welcome Ctroncosor Link to comment Share on other sites More sharing options...
ctroncosor Posted November 20, 2012 Share Posted November 20, 2012 Well just to clear up this post, i reinstalled OSX using CCC (with a copy with iCloud and Facetime reactivated) and voila! it works perfectly so at least, thats the solution i got, hope it serves. 1 Link to comment Share on other sites More sharing options...
Nanael Posted November 20, 2012 Author Share Posted November 20, 2012 nice to know that you got it working again hope you will like Fusion Drive Link to comment Share on other sites More sharing options...
Windows04 Posted November 21, 2012 Share Posted November 21, 2012 Well, did these step, created my Fusion Drive successfully... But unable to boot from it... Seems to be a graphics problem. When I boot with -v, everything seems to load successfully, but it stays in verbose mode (no graphics/login windows = graphics driver problem). Using a Radeon HD 4870, always used GraphicsEnabler=Yes... Anyone else experienced this problem? Link to comment Share on other sites More sharing options...
Nanael Posted November 21, 2012 Author Share Posted November 21, 2012 You have tried with UseKernelCache=No and GraphicsEnabler=NO? Link to comment Share on other sites More sharing options...
gerard71 Posted November 22, 2012 Share Posted November 22, 2012 hi this step is not necessary First, we will modify our org.chameleon.boot.plist by Adding this: rd = uuid boot-uuid = 9C0EB8E8-46EF-8525-85EF-FC7BB6A44823 it prevents icloud, facetime, iMessage worked for it works very well without this step Link to comment Share on other sites More sharing options...
Nanael Posted November 22, 2012 Author Share Posted November 22, 2012 i was adding this line to do like a Raid disk, it's to boot automatically on the FusionHD Volume. I'll try to boot without this Yhank you for the tips Link to comment Share on other sites More sharing options...
ErmaC Posted November 22, 2012 Share Posted November 22, 2012 Thx nanael. Useful infos. I will translate it into a Italian topic here: [Guida] FusionDrive But now... a question... anyone know how preserve or re-add the Recovery Partition into Fusion Device? I found some useful info on the web but not working in my case. - Adding Recovery HD to a CoreStorage Volume Group - Achieving fusion—with a service training doc, Ars tears open Apple's Fusion Drive (the second part of this article is useful for remove a Fusion Drive). Fabio Link to comment Share on other sites More sharing options...
Nanael Posted November 22, 2012 Author Share Posted November 22, 2012 You're welcom ErmaC I havn't search how to had a recovery Partition, but I think that it will be fragile, (not strong ? Sorry, I'm french ^^ ) The probleme is the same as for a Raid Drive, how to put the partition? Because if one HDD/SSD fail, the Logical Volume will fail and you'll loose the recovery partition The only solution( that I see now), is to add a partition on the two physical disk. (It's just an Idea ) Thank you for the italian translation Link to comment Share on other sites More sharing options...
ctroncosor Posted November 22, 2012 Share Posted November 22, 2012 I will check the recovery partition in CoreStorage and inform. Link to comment Share on other sites More sharing options...
ErmaC Posted November 22, 2012 Share Posted November 22, 2012 The only solution( that I see now), is to add a partition on the two physical disk. (It's just an Idea ) Yep... "solution" like one of the link I mentioned before: example disk1 and disk2 diskutil corestorage create fusion_volume_group disk1s2 disk2 where in the disk1: /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *120.0 GB disk1 1: EFI 209.7 MB disk1s1 2: Apple_HFS Empty 119.2 GB disk1s2 3: Apple_Boot Recovery HD 650.0 MB disk1s3 or maybe can be a solution make the Recovery also in the second disk? and create the fusion drive in this way... (no sense I know but...) diskutil corestorage create fusion_volume_group disk1s2 disk2s2 ??? I will do some more test... Fabio Link to comment Share on other sites More sharing options...
ctroncosor Posted November 23, 2012 Share Posted November 23, 2012 As far as i understand Recovery HD is not working either in new iMac 13,2 with Fusion Drive. Link to comment Share on other sites More sharing options...
Nanael Posted November 23, 2012 Author Share Posted November 23, 2012 The problem is create a Logical Volume erase al the disk... So we can't do anything before create the Logical Volume... I have to do some test with a another Fusion Groupe ^^ and read the two links you send before Link to comment Share on other sites More sharing options...
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