How reformating Imac 27' Fusion Drive

Hello Mac Comunity,
I need to reformat the hard disk drive IMac Fusion
Is there a special procedure to be followed or I can do like other Mac?
Thanking you in advance for your help,
best regards,
Francois
Bonjour,
J'ai besoin de reformater le disque dur de IMac Fusion drive
Est-ce qu'il y a une procédure particulière à respecter ou je peux le faire comme sur les autres Mac ?
En vous remerciant d'avance pour votre aide,
Cordialement,
Francois

Welcome to Apple Support Communities
Both have got problems with Windows on Boot Camp, so it doesn't mind which one you have. Note that 3 TB hard disks support came with OS X 10.8.3, so there may be problems with it.
To avoid problems, I recommend you to install Windows on a virtual machine using Parallels, VMware Fusion or VirtualBox. However, it's not good for things like graphic performance, and it doesn't use all the hardware of your computer. To be honest, it's better to choose a 1 or 2 TB hard drive, so you can be sure that Windows will work correctly

Similar Messages

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    Hi, I've noticed an interesting phenomenon of my iMac, which has a 3TB fusion drive. The phenomenon is that the fusion drive has a 2.2 TB + 800GB partitions. I understand fusion drive is actually a 128GB flash drive plus a 2.87GB hard drive. Then why is the fusion drive divided into a 2.2 TB and a 800 GB partitions?
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    Hey I meant to answer my own question! Thanks for reminding me.
    A good reference link is on Super User where some other users already answered methods for Macbook Pro. Here is the link:
    http://superuser.com/questions/481650/cant-use-bootcamp-partition-for-windows-8- installation/846439#846439
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  • HOW CLOSE CAN BEHRINGER TRUTH B2031A SPEAKERS BE TO A 2013 IMAC WITH FUSION DRIVE?

    How close can you put studio speakers (specifically Behringer truth b2031a) to a 2013 imac?  I know the speakers are sheilded but is it still safe right next to the computer?  Will the fusion drive inside or a external be affected by the speakers?  Anyone who has knowledge or experience in this topic your information would be greatly appreciated.  Thanks!

    This was a concern expressed in this thread: Worrying reply to Apples FAQ on new Fusion Drive
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  • Trouble with iMac and Fusion Drive

    Hello, I recently tried installing Windows 8.1 via Boot Camp on my Retina iMac. The install was unsuccessful, so I went to Boot Camp and deleted the partition. After that, I realized I was not able to access that space on the HDD. Reading around, I ended up deleting the Logical Volume, and breaking the Fusion Drive into 2 separate drives. I have tried to consolidate them again using Disk Utility from recovery, but I keep getting an error. After this, I tried it within Terminal. I keep getting an error that the drive cannot be unmounted. Can anyone shed light onto why this may be, and how to fix the issue? I appreciate any help I can get.

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  • How to reset 3TB fusion drive to original partition scheme

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       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *121.3 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage                         121.0 GB   disk0s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
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       1:                        EFI EFI                     209.7 MB   disk1s1
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       3:                 Apple_Boot Boot OS X               650.0 MB   disk1s3
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       1:        Apple_partition_map                         30.7 KB    disk2s1
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    /dev/disk4
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk4
    /dev/disk5
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk5
    /dev/disk6
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk6
    /dev/disk7
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk7
    /dev/disk8
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk8
    /dev/disk9
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *6.3 MB     disk9
    /dev/disk10
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *2.1 MB     disk10
    /dev/disk11
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *1.0 MB     disk11
    /dev/disk12
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk12
    /dev/disk13
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *524.3 KB   disk13
    /dev/disk14
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                            untitled               *1.0 MB     disk14
    Also including what my CoreStorage structure looks like...

    Since it won't let me edit my post, here is the text from the picture:
    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group CB783377-EA29-4751-B149-FE6B210648B5
        =========================================================
        Name:         Internal Drive
        Status:       Online
        Size:         1066587906048 B (1.1 TB)
        Free Space:   12288 B (12.3 KB)
        |
        +-< Physical Volume 0221F6E1-8EE1-453A-A0EB-B32348EB6E53
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk1s2
        |   Status:   Online
        |   Size:     144162512896 B (144.2 GB)
        |
        +-< Physical Volume F74A0E21-6435-4CB2-801F-95682108A391
        |   ----------------------------------------------------
        |   Index:    1
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     120988852224 B (121.0 GB)
        |
        +-< Physical Volume C2BD0D1A-7EA2-4E36-A3EF-82A7E63BE439
        |   ----------------------------------------------------
        |   Index:    2
        |   Disk:     disk1s5
        |   Status:   Online
        |   Size:     801436540928 B (801.4 GB)
        |
        +-> Logical Volume Family 9DD06D63-96CD-4088-8F0E-061026E68C29
            Encryption Status:       Unlocked
            Encryption Type:         None
            Conversion Status:       NoConversion
            Conversion Direction:    -none-
            Has Encrypted Extents:   No
            Fully Secure:            No
            Passphrase Required:     No
            |
            +-> Logical Volume A531CC02-E337-473E-8F1F-F462595E1354
                Disk:                  disk3
                Status:                Online
                Size (Total):          1060804022272 B (1.1 TB)
                Conversion Progress:   -none-
                Revertible:            No
                LV Name:               Macintosh HD
                Volume Name:           Macintosh HD
                Content Hint:          Apple_HFS

  • Installing Windows 7 on Late 2013 iMac w/ Fusion Drive

    Sorry in advance for the long post, but I have tried to exhaust all possibilities, and bring as much knowledge about our environment to the table to avoid confusion.
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    We booted into Recovery, Opened up terminal, retrieved the LvGUID, deleted it, and split up the SSD from the HD.
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    Deployed our Windows Partition image as we have done in the past, by booting into a windows PE Disk. (We have other various 2009, 2010, and 2011 iMacs across campus, with NO FUSION DRIVES installed, and dual boot them successfully using the same procedure. Minus the splitting of the fusion drive part of course) After the Windows image is deployed to the windows partition, we then boot it up to a Windows 7 Install disk to fix the MBR, Bootrec, and BCD options to allow it to boot properly. Here's where we run into issues: Upon getting the Windows 7 Install screen, the USB Keyboard and Mouse, DO NOT WORK.
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    4. Plugged Just a known working Windows Keyboard into each USB Port to see if recognized = Failed
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    Downloaded the Current BootCamp Support drivers to enable the USB and other various drivers to be loaded during setup (Placed the $WinPEDriver$ and AutoUnattend.xml, and BootCamp folder on the Root of a USB, and modified a Windows7 Installation disk and placed on the root as well) The drivers do not load. Have also placed on a brand new USB2, and USB3 flash drive formatted at FAT32, to see if that made a difference, which it did not. The BootCamp USB made within Mac, it loads saying "Now booting into Boot Camp Assistant Created USB Drive..." or something like that (Don't remember the exact Message)
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    I have same issue
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    Also tried install clear ssd without any system, but soon after format ssd or hdd I have error that I cant use this disk to install windows!!!!!!!!!!!!!!!!!
    What is funny Windows 8 installing without any problem!!!
    what is going on APPLE??wher is support
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  • Retina iMac 3tb Fusion drive Boot Camp failure

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    /dev/disk0
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       0:      GUID_partition_scheme                        *121.3 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage                         121.0 GB   disk0s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
    /dev/disk1
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       0:      GUID_partition_scheme                        *3.0 TB     disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage                         2.0 TB     disk1s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3
       4:       Microsoft Basic Data                         1.0 TB     disk1s4
    /dev/disk2
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       0:                  Apple_HFS Macintosh HD           *2.1 TB     disk2
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                                     718A36B4-10B9-49A9-B585-CFC222080507
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       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:     FDisk_partition_scheme                        *8.0 GB     disk3
       1:                 DOS_FAT_32 WININSTALL              8.0 GB     disk3s1
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       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *4.0 TB     disk4
       1:                        EFI EFI                     314.6 MB   disk4s1
       2:                  Apple_HFS My Book                 4.0 TB     disk4s2
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    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group 49E959A5-5F3C-4178-8A2D-067D2C853A96
        =========================================================
        Name:         Macintosh HD
        Status:       Online
        Size:         2118855286784 B (2.1 TB)
        Free Space:   114688 B (114.7 KB)
        |
        +-< Physical Volume D9052F80-9907-4815-8AF1-C9FF8D9C3293
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     120988852224 B (121.0 GB)
        |
        +-< Physical Volume E2271529-B42D-49F9-B231-3CAE6A0FF812
        |   ----------------------------------------------------
        |   Index:    1
        |   Disk:     disk1s2
        |   Status:   Online
        |   Size:     1997866434560 B (2.0 TB)
        |
        +-> Logical Volume Family AAC1C060-264E-4435-9992-5380CAF17B07
            Encryption Status:       Unlocked
            Encryption Type:         None
            Conversion Status:       NoConversion
            Conversion Direction:    -none-
            Has Encrypted Extents:   No
            Fully Secure:            No
            Passphrase Required:     No
            |
            +-> Logical Volume 718A36B4-10B9-49A9-B585-CFC222080507
                Disk:                  disk2
                Status:                Online
                Size (Total):          2112999915520 B (2.1 TB)
                Conversion Progress:   -none-
                Revertible:            No
                LV Name:               Macintosh HD
                Volume Name:           Macintosh HD
                Content Hint:          Apple_HFS
    Rogers-iMac:~ reberhart$ sudo gpt -vv -r show /dev/disk0
    WARNING: Improper use of the sudo command could lead to data loss
    or the deletion of important system files. Please double-check your
    typing when using sudo. Type "man sudo" for more information.
    To proceed, enter your password, or type Ctrl-C to abort.
    Password:
    gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176
    gpt show: /dev/disk0: PMBR at sector 0
    gpt show: /dev/disk0: Pri GPT at sector 1
    gpt show: /dev/disk0: Sec GPT at sector 236978175
          start       size  index  contents
              0          1         PMBR
              1          1         Pri GPT header
              2         32         Pri GPT table
             34          6        
             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
         409640  236306352      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
      236715992     262144      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      236978136          7        
      236978143         32         Sec GPT table
      236978175          1         Sec GPT header
    Rogers-iMac:~ reberhart$ sudo fdisk /dev/disk0
    Disk: /dev/disk0 geometry: 14751/255/63 [236978176 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE 1023 254  63 - 1023 254  63 [         1 -  236978175] <Unknown ID>
    2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    4: 00    0   0   0 -    0   0   0 [         0 -          0] unused 

    Whoops. Should have caught that myself.
    Rogers-iMac:~ reberhart$ sudo gpt -vv -r show /dev/disk1
    Password:
    gpt show: /dev/disk1: mediasize=3000592982016; sectorsize=512; blocks=5860533168
    gpt show: /dev/disk1: PMBR at sector 0
    gpt show: /dev/disk1: Pri GPT at sector 1
    gpt show: /dev/disk1: Sec GPT at sector 5860533167
           start        size  index  contents
               0           1         PMBR
               1           1         Pri GPT header
               2          32         Pri GPT table
              34           6        
              40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
          409640  3902082880      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
      3902492520     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      3903762056         376        
      3903762432  1956769792      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      5860532224         911        
      5860533135          32         Sec GPT table
      5860533167           1         Sec GPT header
    Rogers-iMac:~ reberhart$ sudo fdisk /dev/disk1
    Disk: /dev/disk1 geometry: 97451/255/63 [1565565872 sectors]
    Signature: 0xAA55
             Starting       Ending
    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]
    1: EE 1023 254  63 - 1023 254  63 [         1 - 4294967294] <Unknown ID>
    2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     
    4: 00    0   0   0 -    0   0   0 [         0 -          0] unused     

  • Re-installing Mountain Lion to iMac with Fusion Drive

    Hi I have heard all the horror stories from people regarding installing the new Maverick.  I was hoping to try it, but wanted to play it safe by first learning how to recover back the original state of my Mac OS.
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    But if none of my software work well, I will want to go back to my original OS.
    I do not have a Moutain Lion CD so if I wanted to reinstall original OS how do I go about it?
    I have also noticed that the cursor problem has never been quite solved.  Still occassionaly dissappears.

    I read that I cannot use the Recovery Disk Assistant v1.0 to create an external recoevery disk for a fusion drive is that true?
    Can you please point out or explain a bit more on how this internet recovery system work?  What do I need?  Just an internet connection?  Or do I have to have some cloudbased recovery system which need to be set up?  Do I need my password or Apple ID?
    Sorry for my ignorance.

  • How do i restore fusion drive to default status?

    Hi there, I've mucked around with the drive accidentally in the past trying to do clean installs and just want to remove any partitions I've created or random and unused drives. I just want it to look and be like when I first opened it out the box if that makes sense. Its the iMac 21.5-inch with fusion drive.
    I've uploaded what my disk utility and terminal look like.
    Thanks!

    Hi,
    Check out this link might be helpfull to you...
    http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00809678
    =======================
    I am an HP employee.
    If my suggestion was helpful, you can thank me by clicking on the "Kudos" button!
    If my answer solved your problem, please feel free let the community know by clicking the "Accept as Solution" button!!

  • Is any one having audio glitches with the new iMac 2013 (fusion drive)no matter what audio interface they are using?, is any one having audio glitches with the new iMac 2013 (fusion drive)no matter what audio interface they are using?

    Hello I recently purchased a new imac 2013 with fusion drive about five weeks ago I am currently using sounddevices usb-pre2 as my audio interface every 2 to 3 minutes i get audio glitches in the audio whether its itunes or the internet doesn't matter I checked on the internet evey on says its the fusion drive.it *****, I wonder if an update can fix this???

    Have you read for possible solutions over in the "More Like This" thread over here?----------------------->

  • What Happen to My iMac 3TB Fusion Drive?

    http://img14.imageshack.us/img14/1586/screenshot25560317at426.png
    http://img89.imageshack.us/img89/8808/screenshot25560317at432.png
    http://img24.imageshack.us/img24/3763/screenshot25560317at444.png
    I try cmd+r to restore my imac but it doesn't work bad drive still show up and it cannot be erase.
    I try using diskutil in terminal command but it doesn't work
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    Contact Apple's Express Lane  and let them sort it out since it's a new machine.

  • How to repair split fusion drive?

    After experiencing problems with Yosemite, I reverted to Maverick using a time machine and I had to rename the HDD to McIntosh Hd since the SSD was too small to accept so now I can't remember the name of the HHD prior to changing its name.  I use an iMac 2012 with a Fusion 128/1tb.  Hope I can find a solution.

    After experiencing problems with Yosemite, I reverted to Maverick using a time machine and I had to rename the HDD to McIntosh Hd since the SSD was too small to accept so now I can't remember the name of the HHD prior to changing its name.  I use an iMac 2012 with a Fusion 128/1tb.  Hope I can find a solution.

  • Dreamweaver CC opening files very slow iMac with Fusion drive

    I am working on a small website based off on Bootstrap 3. Now that I am almost done with the project opening files take a few seconds to open them (in code view). I have tried the various fixes like resolveremoteurltoipaddress=FALSE but still the files load very slow. On my Windows Machine it loads very fast and that machine is 4 years old. The iMac I am using at work is the latest version with decked out specs and only Dreamweaver CC and Edge Code have very slow opening of files. Creating new documents inside Dreamweaver CC is fast. Is there a way to make Dreamweaver open files faster? How to make it load faster, open documents faster, especially in code view. My initial thought is maybe its because I am linking to a few JS library like TypeKit and jQuery but I have not experience these problems on my Windows PC. Any help would be appreciated. 

    I am working on a small website based off on Bootstrap 3. Now that I am almost done with the project opening files take a few seconds to open them (in code view). I have tried the various fixes like resolveremoteurltoipaddress=FALSE but still the files load very slow. On my Windows Machine it loads very fast and that machine is 4 years old. The iMac I am using at work is the latest version with decked out specs and only Dreamweaver CC and Edge Code have very slow opening of files. Creating new documents inside Dreamweaver CC is fast. Is there a way to make Dreamweaver open files faster? How to make it load faster, open documents faster, especially in code view. My initial thought is maybe its because I am linking to a few JS library like TypeKit and jQuery but I have not experience these problems on my Windows PC. Any help would be appreciated. 

  • Is Disk Utility in OS X 10.8.2 the version of Disk utilit that controls the Fusion Drive on new Imacs?

    is Disk Utility in OS X 10.8.2 the version of Disk utilit that controls the Fusion Drive on new Imacs?

    No. Only those computers with a Fusion Drive installed will get the special version of Disk Utility. Do a Google search if you want to find out how to create a fusion drive with older systems, but I suggest it's a waste of time.

  • Disabling Fusion Drive and Installing Windows on SSD of Late 2012 iMac

    Hi, everyone.  After a two-year wait, I'm ready to buy my first iMac (was waiting for USB 3.0).  Before I get into my questions, I'll give you an overview of where I'm coming from so we can keep the discussion focused.
    My Usage
    I'm buying an Apple computer because it is the best-looking, quietist, and most powerful all-in-one computer I can find right now, but Windows is still my preferred operating system.  I've used OS X before – it looks great and I'm sure it works great for a large number of people, but it's not for me.  Windows works well and efficiently for me and I have thousands of dollars of design software for Windows.  I'm not interested in a virtualization solution because of my performance needs.  However, I do want to keep the OS X installation, if possible, for website testing and to play around with to learn the operating system better.
    What I Want
    I was attempting to buy the Late 2012 iMac last weekend, but it appears the BootCamp specifications and the Fusion Drive are currently limiting my usage needs.  I'm configuring the top model iMac with the i7-3770 processor, 24GB RAM (8 default + 16 from Crucial), GTX 680MX, and the 3TB Fusion Drive.  I don't actually want to use the Fusion Drive, though.  I want Windows 7 64-bit and OS X 10.8 installed on the 128GB SSD and to use the 3TB hard drive as storage for my music, videos, photos, and documents.
    My Questions
    1.  I've found a bunch of posts regarding installing Windows on the Fusion Drive, but they all seem to be about putting Windows on the slower 3TB hard drive portion and/or about trying to keep the Fusion setup after installing Windows.  Does anyone have a walk-through for a new Mac user on how to break the Fusion Drive configuration and install Windows 7 and preferably OS X on just the SSD?
    2.  I've seen a bunch of posts debating about whether Windows can be installed natively using EFI to bypass the BootCamp limitations.  Is this possible?  The 21.5" version is running EFI version 2.0, so I can only assume the 27" would too, but it's not been added on the Apple website yet (http://support.apple.com/kb/HT1237).  From what I understand, Windows requires at least version 2.0 to run in EFI mode.  Also, if I am able to get this method to work, will I still be able to install the Windows drivers from the OS X installation USB (or do they even come with USB drives anymore?)?
    3.  If I have to use BootCamp, I assume I will have to split the 3TB drive into 1TB and 2TB partitions for BootCamp to see it (so Windows can see it).  So I'd have Windows 7 and OS X on the SSD, and two storage partitions on the 3TB HDD that would show up as two drives for my files that both operating systems could access.  Is this assumption correct?
    4.  I've seen posts about OS X automatically trying to rebuild the Fusion Drive.  Let's say I'm able to get Windows installed on the SSD.  Will OS X, or future updates to it, ruin my Windows installation?  I would hate to do all this work and then have an Apple update corrupt everything.
    I know this is a long post, but I don't want to spend over $3,000 until I can be sure I can make it work for me.  Thanks to anyone who can help!
    iMac, Windows 7

    First, an advice: Boot Camp isn't compatible with 3 TB hard disks and Fusion Drive. For 3 TB hard disks, there's a workaround, but it doesn't work on a 3 TB Fusion Drive, so you won't be able to install Windows until Apple fixes this, so my advice is to wait until Apple launches OS X 10.8.3 or buy the iMac with a 1 or 2 TB hard disk and an external disk.
    1. The SSD is used automatically by OS X to store the applications and data you most use, but Windows can't use it, and there's no workaround for this.
    2. You can try to install Windows 8 in EFI mode, but I don't guarantee that it works. I tried it on my iMac and I started getting BSODs after some startups. Also, Macs don't use UEFI 2.0 (Macs use EFI 1.x), so you can't use Windows 8 advanced features such as Secure Boot. For Windows 7, you can't install it in EFI mode (it requires UEFI 2.0 or later)
    3. Fusion Drive only allows you to have two volumes, and with Boot Camp, you can only have two volumes on your computer: one for OS X and the other one for Windows. That's because Boot Camp emulates a BIOS to make Windows run (although it isn't neccesary in Windows 8, if Apple would want).
    4. First, you can't install Windows on the SSD. Then, OS X shouldn't ruin Windows because each operating system have got its space

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