Mac reporting only SSD portion of total Fusion Drive

My girlfriend just bought a new 21.5" iMac and I used Migration Assistant to move her old iMac setup to the new iMac. After that processed finished, the iMac is working fine but only shows the ~120GB total size of just the SSD with the available space of approx. 90GB. There's no sign of the 1TB portion of the HDD. Is this a software issue that can be remedied or more likely a bad drive?

This sounds like an unusual issue. If I were you I would contact Apple about it. Her computer is new, so it should still be under the 90 days of free telephone support that Apple provides.
Contact Apple using www.apple.com/support/contact if you are in a country that supports it or call the appropriate phone number on this page. Alternatively carry the iMac in to an Apple retail store.
Best of luck.

Similar Messages

  • Can the 128 GB SSD part of a fusion drive be replaced with a 960 GB SSD dive for greater performance and added storage?

    Can the 128 GB SSD part of a fusion drive be replaced with a 960 GB SSD dive for greater performance and added storage in a 2012 mac mini?

    First, I suspect Apple fine tuned its choice of SSD size for the Fusion drive based on the best performance/price ratio. I'd be surprised if a larger SSD provided any improvement that would justify the added price of a larger SSD.
    Second, if I could justify the cost of a 960 SSD drive I wouldn't bother with a Fusion drive!

  • Mac mini w/ ssd or iMac w/ fusion be a better choice?

    For editing, processing, & previewing tracks in Ableton and Serato Scratch Live when at home and general entertainment use (watching movies, iTunes, streaming, etc.).

    I would pick the iMac because it will have a faster processor.  Plus with fusion drive you can really get a lot more space with some of the benefits of an SSD.

  • Best SSD to DIY a Fusion Drive.

    Hi there, I'd like to know if any of you have personally a SSD brand you trust.  I once purchased a SanDisk SSD for my work computer which failed before a year of usage.  Later I purchased a Crucial/Micron SSD for my iMac which seems to be failing now, around only over 6 months of usage.  I've replaced the SanDisk with a Kingston in my work computer but I'm not sure if it'll last at all.
    For my iMac, though I've lost confidence in SSDs and I feel tempted to rely solely on the HDD, I'd like to know if you can advise other very reliable SSD options since the speed of a Fusion Drive is just spectacular.
    Any recommendation?  Thanks in advance.
    Jorge...

    Do a Google search on the various brands and read the reviews about them. I haven't read of any that are outright unreliable. I haven't seen complaints about these drives failing in this forum or on PC forums. Like any piece of electromic equipment some will fail, that goes for SSD's as well as HDD's.
    When you installed this SSD did you take precautions against static? Are you sure you followed all the steps in the installation process EXACTLY? Opening a newer iMac and installing a drive (SSD or HDD) is frought with pittfalls. One bad move and you can create big problems for yourself. With that said I've installed 3 HDD's and 2 SSD's in three different iMacs without problems. However I am very careful to work in a static free environment (wrist strap, static mat, etc.) I handle the components as little as possible, and take care that they are seated properly inside the iMac. It's very easy to pinch a cable or do something that will come back and bite you.
    I mentioned MacSales because buying from a good vendor is just as important as buying a good component. I know MacSales stands behind what they sell, and that's important to me. (I am not connected in any way with MacSales, except being a satisfied customer)

  • Office mac keeps asking for license key with fusion drive

    I'm posting this in case anyone else is having this trouble where Office for Mac 2011 keeps asking for the license key. I have a later 2013 iMac with Fusion drive and never have been able to use office on this computer without entering the key. In talking with Microsoft they removed office and all the files and reinstalled with no help. In speaking with Apple, they said there is a known issue with Microsoft Office and the Fusion drive and Microsoft is working on a patch. Evidently the fusion drive moves the files around and to Microsoft that looks like new hardware so it prompts for the key. Realy annoying! Microsoft

    I'm a certified Apple consultant and I recently hit this issue at an installation. On seven iMacs with the Fusion drive, I deleted the "Thunderbolt Bridge" interface from the Network System Preference. We then rebooted the computers, entered the product key one more time, and so far, the problem has disappeared and survives subsequent rebootings.
    Obviously, if you are frequently networking two Macs using Thunderbolt, this isn't a good long-term solution (though it is easily added back). However, it does appear to work. I have no sound theory as to why it works, except that Office might be interpreting the existence of that bridge as evidence that the software was copied onto a machine instead of properly installed. This is just a wild guess, though.
    I have no idea if it will work for others, but hey, the forums are for throwing out these ideas and seeing if one of them sticks for most people. So...there it is.

  • Fusion Drive like a 128GB SSD if I don't go over?

    Hi everyone!
    I have a few questions regarding the Fusion Drive. I bought a refurbished late-2013 iMac for a good price but the Fusion drive is bothering me. I'm planning to do video editing and all my applications that I need fit on the SSD. So my questions are:
    1. If I don't go over 128GB (Fusion Drive's SSD portion) am I essentially using a 128GB Flash storage? (I'm planning to edit on external drives)
    2. And is there a way to check how much files my SSD portion of the Fusion drive is holding?
    3. If I bootcamp my 3TB fusion with 1TB for Windows 7, does the SSD portion get affected when booting up Mac? I'm only using my Windows 7 for gaming.
    4. I've heard that Disk Drives get slower as it fills up, is this true? If so, could you elaborate on it please. I may leave the other 2TB remainder alone if that's the case.
    5. Lastly, I'm planning to upgrade the 8GB Ram with an extra 16GB Ram from amazon. I just wanted confirmation that these rams do indeed work on my iMac Late-2013 system. http://www.amazon.ca/gp/product/B008LTBJFW/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&s mid=A3DWYIK6Y9EEQB
    Thanks!

    You are over-complicating using your computer, simply use the Fusion drive as you would any internal HD. There is nothing special you need to do!
    As for Boot Camp, simply follow the on-screen instructions in Boot Camp Assistant (Applications - Utilities - Boot Camp Assistant) for installing. In addition you may find the manual for Boot Camp helpful, click http://manuals.info.apple.com/MANUALS/1000/MA1583/en_US/boot_camp_install-setup_ 10.7.pdf to view the manual.
    As for RAM I would STRONGLY recommend buying RAM from OWC (www.macsales.com) if you are in the USA, if you are  outside the US then buy it directly from Crucial, they have an on-screen utility to help you choose the correct RAM for your iMac. The correct RAM from OWC would be found at
    http://eshop.macsales.com/shop/memory/iMac/2012_27/DDR3L

  • 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

  • Is anything written permanently to the Fusion Drive's SSD?

    Is anything written permanently to the Fusion Drive's SSD or is it just a very large cache for the HD component?
    I'm wondering, because I'd like to know, mostly out of curiosity, if the mechanical portion of the Fusion Drive were to fail, might the computer still boot from information on the SSD?

    (I back it up with Carbon Copy Cloner AND Time Machine.)
    So, if either part fails, the machine is quite dead until the internal drive is replaced?  I ask because these two drives are detected separately in utilities such as TechTools Pro, where their S.M.A.R.T. data can be retrieved and tested independently.
    If a failure of either portion of the drive totally disables the whole drive, would this sort of double the chance of a Fusion drive's failure?

  • Fusion Drive: How do I manage which software is on the Flash portion?

    Any idea how I can see which software Mountain Lion is placing on the Solid State portion of my Fusion drive? Can I manaually manage it, as they suggested?
    From the link below, it is suggested that once I add a partition to my Fusion drive, the "plus" symbol in Disk Utility to add additional partitions will be grayed out. You cannot partition the Flash storage. When I go to my (Apple configured) drive in Disk Utility, there is NO plus sign next to my drive. I haven't attempted any partitions. Is it possible that my drive was not formatted properly from the factory?
    http://support.apple.com/kb/HT5446?viewlocale=en_US&locale=en_US

    You don't have any direct control over the allocation of data between the physical drives. It's automatic, based on your usage pattern. If you're not satisfied with that, Fusion Drive isn't right for you.

  • DIY Fusion Drive and RAID 5

    Hi everyone!
    I have spent several hours by reading various forums but haven’t found any definitive answers.
    I have a 12 Core Mac Pro with the following setup: one 1TB SATA hard drive that carries the system and applications. For the files and storage there are three 2TB SATA drives in RAID 5 controlled by Apple RAID card. I am going to install a 512 GB Samsung 840 Pro SSD drive in the optical bay and have initially planned to use it just for the system and applications, but am curious if the following is possible.
    1) Is it possible to combine the RAID 5 array with the SSD and create a Fusion drive?
    2) If yes, will it retain all the features of the RAID 5?
    3) Should TRIM be enabled?
    Thank you in advance!

    TRIM directly addresses the shortcomings of having only garbage collection available. SSD controller manufacturers and designers (including SandForce, the controller manufacturer for OWC's SSDs), recommends that TRIM be used with their products. So does Samsung. 
    For example, here's a 2011 article from OWC describing how you don't need TRIM on their SSDs and how it can in fact hurt performance or reliability.
    That article has been discussed here on MacInTouch before. In my opinion it's bad advice, and inaccurate in some of its assertions. It also ignores the recommendation made by SandForce to use TRIM with their SSD controllers. But even if one were to take that article at face value, applying that advice to SSDs other than OWC's makes little sense.
    The reason I'm advising against TRIM is simply that it's yet another driver-level modification of the OS, and these always carry potential risk (as all the folks with WD hard drives who lost data can attest to).
    Apples and oranges comparison, for a variety of reasons. The short of it is that TRIM is supported natively in all recent versions of OS X. The tools used to enable it for third party SSDs do not add a new kernel extension; they change the setting to allow Apple's native TRIM implementation to be used with SSDs other than those factory installed by Apple.
    This shows that the 840s do work slightly better with TRIM than without, but the differences are (in my opinion) trivial, a 9% increase at best.
    One of the major reasons for the skepticism that exists about TRIM is that so many people, the authors of both articles you linked to included, don't understand it.
    TRIM is not, strictly speaking, a performance-enhancement technology -- though it is plainly obvious that most people think it is.
    Though it can, in many circumstances, improve performance, there are also circumstances under which it will provide little or no noticeable benefit. Not coincidentally, a new SSD tested fresh out of the factory packaging is unlikely to show much (if any) benefit. Or rather, TRIM is providing a real benefit for new SSDs, but that benefit doesn't become measurable in terms of benchmark performance testing until every memory cell in the SSD -- including many gigabytes of cells hidden from visibility by the SSD controller -- have been written to at least once. Writing 128 GB of files to an SSD with a nominal capacity of 128 GB won't do it, as there are several gigabytes (exact number varies depending on the model) still unwritten.
    Under real-world use conditions, having TRIM disabled means eventually having noticeable write performance degradation due to write amplification. It is far greater than "9%" -- it can be a 50% or greater drop in write performance, depending on various factors. Defining "eventually" is difficult because it depends on how the SSD is used. But given enough time and write cycles, it can happen to all SSDs used without TRIM, no matter how sophisticated their garbage collection algorithms are.
    Under those same real-world use conditions, having TRIM enabled means that the SSD should almost never reach a state of having noticeable write performance degradation, as it should almost never get into a state where write amplification is happening.
    I will concede that it is possible to design a lab test in such a way as to defeat the benefits provided by TRIM, but such tests do not reflect any real-world usage scenario I can imagine. Furthermore, those same contrived tests would put an un-TRIMmed drive into an equally-addled state even more quickly.
    I would suggest reading through the rather lengthy previous discussions about TRIM. Here are a couple of my past posts that are most relevant to the current discussion:
    A description of what TRIM is here.
    I addressed some of OWC Larry's comments about TRIM use with OWC/SandForce SSDs here.
    http://www.macintouch.com/readerreports/harddrives/index.html#d09dec2013

  • Fusion drive Imac

    Hello all,
    A couple of days ago my 27' Imac wouldn't start up normaly, it was stuck at the loading bar. Tried to turn it on couple of times, but nothing happend. So after this, I did a reinstall by pressing cmd R when turning the Imac on.
    But now the problem, I have a 1TB Fusion drive, but it only recognize the 128GB SSD and not the HDD. So, what to do now? Is the HDD broken?
    I would appreciate if anyone has a comment how to fix this or what to do, I hope it is not to bad.

    It appears either the HDD portion of the Fusion Drive or connectivity to it has died.
    Is the iMac still under warranty? If so take it back to Apple.
    The direction to change this disk drive are at https://www.ifixit.com/Guide/iMac+Intel+27-Inch+EMC+2309+and+2374+Hard+Drive+Rep lacement/1634

  • IMac, Bootcamp, Windows 8.1, Fusion Drive - not working

    Hey there,
    as many other here I habe problems installing Windows 8.1 on my iMac (late 2013) with a 3TB Fusion Drive.
    I'm playing around with that installation about 3 days or so.
    Even got a problem where I couldn't delete  partition and suddenly got a second logical volume group
    Somehow I could fix that.
    I tried to install it with the help of Threads which are already opened here but had no success.
    I just want a plain Windows version, not on that SSD part of my Fusion Drive, just about 500GB of Windows
    And maybe there is a chance without reinstalling Yosemite?
    Hopefully you can help me through that process.
    And many thanks in advance, here is the output of my disk:
    /dev/disk0
       #:                       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
    /dev/disk1
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *3.0 TB     disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage                         3.0 TB     disk1s2
       3:                 Apple_Boot Recovery HD             650.1 MB   disk1s4
    /dev/disk2
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Macintosh HD           *3.1 TB     disk2
                                     Logical Volume on disk0s2, disk1s2
                                     7FAF6BAA-C32E-4BE8-8378-1AB952103D4B
                                     Unencrypted Fusion Drive
    +-- Logical Volume Group 720DDB76-2216-4981-859C-5F2DBC428983
        =========================================================
        Name:         Internal Drive
        Status:       Online
        Size:         3120721960960 B (3.1 TB)
        Free Space:   0 B (0 B)
        |
        +-< Physical Volume D73AC2AF-13EF-456E-915E-8B11D0D99E64
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     120988852224 B (121.0 GB)
        |
        +-< Physical Volume 84ECF042-B99E-4B7C-B9FC-591B359DD333
        |   ----------------------------------------------------
        |   Index:    1
        |   Disk:     disk1s2
        |   Status:   Online
        |   Size:     2999733108736 B (3.0 TB)
        |
        +-> Logical Volume Family 7734F0C3-28D6-4B35-8F73-8D8675DABDDD
            Encryption Status:       Unlocked
            Encryption Type:         None
            Conversion Status:       NoConversion
            Conversion Direction:    -none-
            Has Encrypted Extents:   No
            Fully Secure:            No
            Passphrase Required:     No
            |
            +-> Logical Volume 7FAF6BAA-C32E-4BE8-8378-1AB952103D4B
                Disk:                  disk2
                Status:                Online
                Size (Total):          3114866704384 B (3.1 TB)
                Conversion Progress:   -none-
                Revertible:            No
                LV Name:               Macintosh HD
                Volume Name:           Macintosh HD
                Content Hint:          Apple_HFS

    Hey,
    yes there was no Windows Partition as I wanted a clean start 
    sudo gpt -vv -r show /dev/disk0
    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
    sudo gpt -vv -r show /dev/disk1
    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  4687239264      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
      4687648904     1269760      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      4688918664        1912        
      4688920576  1171611648      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      5860532224         911        
      5860533135          32         Sec GPT table
      5860533167           1         Sec GPT header

  • How to re-instal os x 10.8 in imac 2012 with external fusion drive

    i create an external fusion drive with la cie ssd 128g usb 3.0 in my imac late 2012, but i can't install os x in fusion drive.
    <Subject Edited by Host>

    Sorry i mistake , i want to re install OS X 10.8.3 in my mac 2012 after to make an external fusion drive via USB 3.0. As you know OS is pre installed in mac 2012 and if i try to make bootable fusion drive an errror occours.
    There is someone that can help me ?
    ( sorry for my english!)

  • Will VMware or Parallels work for a 3TB fusion drive?

    I'm in the market for an iMac but I need windows for work-related stuff (and some games)
    I have an older macbook pro (13" the first year the 13" went pro, 2009 i think) and I load windows through bootcamp, so no problems there.
    I understand that the 3TB fusion drive won't work with bootcamp so my only option seems to be either VMware or Parallels (i haven't used either of these) to load Windows 7.
    Just wanted to ask to make sure that there is no limitation with a 3TB fusion drive and VMware or Parallels.
    Thanks in advance for any help,
    Scott

    There are limitations with either choice you make.
    With boot camp, that is where you partition the drive to install windows and have a dual boot system, and a fusion drive windows will be installed on the rotating standard drive only. Not utilizing the ssd flash storage at all.
    If you go with a virtual machine install of windows in either parallels, vmware fusion or the free vm program virtualbox from oracle the limitation are in the virtual hardware used. Most specifically in the virtual video card all of the virtual machine program use. So if you are using graphic programs the preformance in a vm will be lower then if windows was in it own partition and using the real hardware in the system. On the plus side for a virtaul machine install of windows is that you can run both os x and windows at the same time, windows and the virtaul machine program might be placed on the ssd part of the fusion drive and will actuall run faster then if it was in its own partition on the standard rotating hard drive.

  • Fusion Drive on Windows

    Hi everyone,
    I'm planning to buy iMac Late 2012. I'm going to order with maybe 1TB Fusion Drive and wanted to ask if it will work with windows... So what do you guys think?
    thanks, Enes

    A computer with Fusion Drive works properly with Windows on Boot Camp. Only iMacs with 3 TB Fusion Drive have problems to install WIndows on Boot Camp.
    Before using Boot Camp to install Windows on the Mac, see if you need a virtual machine or Boot Camp > https://discussions.apple.com/docs/DOC-3321 Also, note that you will have to install Windows through a USB drive, or buy the USB SuperDrive if you have Windows on a DVD

Maybe you are looking for