Apple Raid 5 Lost?

I have a macpro with a Apple raid card.  I have 4 Seagate drives in a raid level 5 config.  Randomly last week, the machine came up with a question mark on start up.  Upon further investigation, the raid apparently had failed completely and I have lost all of my data?  I hope that is not the case.  Upon start up with the raid utility admin tool, the card and the drives are online and the only option I see available is to rebuild the raid.  1.  Has anyone else had this problem?  2. Is there anything I can do to recover the data/raid?

You haven't provided any useful information at all to go on. Have you read the RAID Utility User Guide? What's the status of the card, the individual drives, and what are the errors and events reported by the utility? Why, exactly, do you say the array has apparently completely failed? If you have two physically dead drives, or more, then for all practical purposes you have lost the data, although a professional data recovery service might have luck reconstructing it.
RAID is not a backup. RAID 5 actually has a rather high chance of total array failure during rebuild after a single disk has failed; not merely due to the likelihood of a 2nd disk failing during rebuild, but the increasing likelihood of parity error or a sector read error occurring during rebuild.
Proprietary RAID is much more difficult to recover data from in the event of an additional failure of an already degraded array.

Similar Messages

  • Mac Pro 2009 Raid Set Lost after Hard Reboot

    We have a newer Nehalem based Mac Pro with a 2009 Black Apple Hardware Raid card.  The Hard Drive Configuration is: 4 x 2TB Western Digital drives setup as a Raid 1+0 array providing 4TB of space with what we believed to be optimal performance and redundancy.  We had two volumes / partitions configured on the array, one 120GB for the OS and the remaining 3.8TB for data. 
    Everything was working fine when the server froze up.  ON the Screen an error message said there is a problem with your Raid controller, Please open Apple Raid Utility.. Unfortunatly when we tried to do that we just got a spining beachball. We tried to open finder and it beachballed.  We tried to force quit and nothing working. Finally we were left with no choice but to do a hard restart of the server and turn the machine off and then back on. 
    When the server came back on it would not boot up.  We were greeting with the Folder with a Queston Mark.  We booted from the Mac 10.6 Snow leopard Server Disk and opened up Apples Raid utility software.  Much to our shock the Raid Set and the two Volumes were not shown in the Utility.  However all 4 of the drives were listed and all being shown as Green light good status, but listed as "Roaming".  We weren't sure what to do, the volumes weren't accesible since they didn't exist, the Raid set wasn't there, there was no way to run something like Data Rescue Recovery software.  We tried calling Apple and have to wait until they open this morning.  After looking online at various forums we came accross this problem with no solutions.  Most of the people with the problems had the older 2006 Blue Raid card, and this appeared to be a common issue amoung others with the older card.  I decided to try and re-create the Raid 1+0 set.  However as soon as I did that I was prompted by Raid Utility that the drives I was selecting to use for the Raid set were already a part of another raid set and using them would delete the data on the set.  I obviously canceled the process. Crazy enough the system knows the drives belong to a Raid set but doesn't realize it should know what the raid set information is.
    We were using Mac OS 10.6.7 Snow Leopard Server, and I even tried installing and updating an external drive with 10.6.7 Server and booted from the drive from the machine and try to run Raid Utility.  That did not work either.  Any advice from anyone would be awesome.  I'm worried what Apple is going to say when I do get a hold of them, the system is under Apple Care warranty.  Thanks in advance for anyone's time.

    I haven't lost data, but in my 2010 Mac Pro with 2009-vintage Apple RAID card, it has this Really Annoying Habit of constantly losing Disk 3 (the spare) in my 4x2 TB internal RAID5 array whenever I have to do a hard reboot.
    I keep having to re-mark the now-"Roaming" drive as a Spare and then wait 8+ hours for it to rebuild the array ... grrr.
    I saw an Apple KB article that suggests removing the Roaming disk and re-inserting it.  Duh.  Fat lot of good that did.  Really wish there was some answer to this issue ... hard reboots should NOT cause array disks to go from "Assigned"/good to "Roaming"! 

  • How do I determine what needs attention on my Apple RAID card?

    Every time I turn on the computer, I get a message that says," The Apple RAID Card installed in your system requires your attention."
    This is what I have: RAID 065-7214 Mac Pro RAID Card
    Why do I keep getting this message? I am not sure what needs to be done to rectify any error. If there is no error and the warning is just due to battery charging, then I would like the warning to stop appearing--or do I just have to continuously click "Ignore"? Any insight into this?
    When I open RAID Utility it says: RAID set R0-1 has been mounted with indeterminate data loss. ( Is this just due to improper shutdown?)
    Also: Controller reports RAID system 72-hour battery reserve unavailable-System is configured to run without battery.
    Message was edited by: Darlyne

    I have had the exact same error message. When you open Raid Utility (that is where you can read what "attention" is needed you will see under the "Status" section what happened, and under the "Tasks" you will see the raid card "initializing" your RAID set. The first time I saw this I freaked, thinking that my drives were being reformatted, and my data would be lost. This is not the case. If you look down on the left side, you will (hopefully) see green lights next to your drives. The initialization seems to be a verification of the raid structure -- basically checking to make sure everything is redundant.
    So, back to the original question: it seems from my poking around that you SHOULD NEVER TURN OFF your Mac Pro with an Apple Raid Card installed. The firmware is not able to spin down the drives correctly, so when you turn your machine back on, you get the error message we have been discussing.
    I would recommend you get a good battery backup (UPS, like an APC) and just power off your monitor when not using your machine. I did not see this in the documentation, I am not 100% sure, but this is what I will be doing. In my case it takes many hours for the Raid Util to initialize my Raid again.
    Hope this helps.
    Theo

  • 2010 Mac Pro with Apple RAID card - "Drive carrier 00:03 removed"

    I've got a 2010 Mac Pro with the Apple RAID card and 4 internal identical Seagate ST32000641AS 2TB drives inside.
    I've never had a problem with the RAID card (either battery or in operation) except for one thing:
    Almost every time I shut the machine down (which I try to do as rarely as possible), it keeps losing Drive 3, the spare.
    (See RAID Utility event log snippet below.)
    [I wish I could understand why this Apple RAID card keeps losing the spare across power-cycles/reboots, but I digress.]
    So I just adopted it as the spare and it spawns the rebuild and many hours later, everything's fine again.
    ... until the last time I rebooted (Jan. 2nd).
    After the usual "I lost the spare" message upon login, it began the rebuild.
    But this time, about 11 1/2 hours later the rebuild stopped and RAID Utility reported "Drive carrier 00:03 removed".
    Bay 3 is now missing in the Controller view.
    I powered off the system last night, and left it off overnight.  Today I took all the drives out, blew the dust off and reseated them.
    Same thing.  Drive 3 is still missing, and now the rebuild task aborted.
    The drive bay location shouldn't matter, right?  Can I swap the Bay 3 drive with the Bay 4 drive?
    I figure one of two things would happen:
    (1) It will report Bay 3 as being there but Bay 4 as being missing, same situation as is now.  Meaning the problem is in the Bay 3 spare drive.
    (2) It will report Bay 3 as being missing (despite a 'good' drive being present) and Bay 4 will be the (unattached) spare, and the RAID set will be unviable.  Meaning the problem is with the drive bay itself, not whatever drive is plugged into it.
    If "Drive carrier removed" is trying to tell me the disk is bad, why do I not see any log messages about it?  I suppose a spare that never gets used could go bad from lack of use, but ... no messages at all?
    Hesitant to plunk down $160 on a new spare disk if the present one isn't actually dead ...
    % sudo raidutil list raidsetinfo
                                         Total     Avail
    Raidsets      Type       Drives       Size      Size  Comments
    RS1           RAID 5     1,2,4      5.23TB    0.00MB  Rebuild: 0% complete            
    % sudo raidutil list driveinfo
    Drives  Raidset       Size      Flags
    Bay #1  RS1             2.00TB   IsMemberOfRAIDSet:RS1 IsReliable
    Bay #2  RS1             2.00TB   IsMemberOfRAIDSet:RS1 IsReliable
    Bay #4  RS1             2.00TB   IsMemberOfRAIDSet:RS1 IsReliable
    Event log snippet:
    Saturday, January 11, 2014 8:15:19 AM PT
    Background task aborted: Task=Rebuild,Scope=DRVGRP,Group=RS1
    informational
    Friday, January 3, 2014 3:50:28 AM PT
    Drive carrier 00:03 removed
    informational
    Thursday, January 2, 2014 4:29:37 PM PT
    Marked drive in bay 3 as a global spare
    informational
    Thursday, January 2, 2014 4:29:28 PM PT
    Adopted drive in bay 3
    informational
    Thursday, January 2, 2014 4:28:34 PM PT
    Degraded RAID set RS1 - No spare available for rebuild
    critical
    Saturday, December 7, 2013 5:35:17 PM PT
    Marked drive in bay 3 as a global spare
    informational
    Saturday, December 7, 2013 5:35:08 PM PT
    Adopted drive in bay 3
    informational
    Saturday, December 7, 2013 5:34:11 PM PT
    The "RedundancyScrub" command could not be executed. (Invalid request or invalid parameter in the request.)
    warning
    Saturday, December 7, 2013 5:34:03 PM PT
    Degraded RAID set RS1 - No spare available for rebuild
    critical
    Friday, December 6, 2013 4:56:47 AM PT
    Battery finished conditioning
    informational
    Thursday, December 5, 2013 9:53:44 PM PT
    Battery started scheduled conditioning cycle (write cache disabled)
    informational
    Friday, September 6, 2013 10:53:11 PM PT
    Battery finished conditioning
    informational
    Friday, September 6, 2013 3:41:33 PM PT
    Battery started scheduled conditioning cycle (write cache disabled)
    informational
    Saturday, June 8, 2013 3:41:35 PM PT
    Battery finished conditioning
    informational
    Saturday, June 8, 2013 8:37:49 AM PT
    Battery started scheduled conditioning cycle (write cache disabled)
    informational
    Thursday, May 30, 2013 4:09:51 PM PT
    Marked drive in bay 3 as a global spare
    informational
    Thursday, May 30, 2013 4:09:42 PM PT
    Adopted drive in bay 3
    informational
    Thursday, May 30, 2013 4:08:59 PM PT
    Degraded RAID set RS1 - No spare available for rebuild
    critical
    Thursday, May 30, 2013 3:32:29 PM PT
    Degraded RAID set RS1
    warning

    Power Pig wrote:
    "Hesitant to plunk down $160 on a new spare disk if the present one isn't actually dead ...
    % sudo raidutil list raidsetinfo
                                         Total     Avail
    Raidsets      Type       Drives       Size      Size  Comments
    RS1           RAID 5     1,2,4      5.23TB    0.00MB  Rebuild: 0% complete     
    I was talking about this.
    This looks like a RAID 5 setup without the parity to me. I would said it basically a RAID 0.
    Also you metioned "I guess that previous spare must really have gone 'bad', despite having never been used! "
    I wiped everything out, I selected the 3 disks and clicked on "Create RAID Set" with RAID5 selected and the "Use unassigned drives as spares" option checked.  The 3rd disk has always been marked as the spare ever since then.  You do not have a choice to create a "RAID5 setup without the parity".  If I wanted a RAID0 I would have chosen a RAID0!  raidutil now says
    % sudo raidutil list raidsetinfo
                                         Total     Avail
    Raidsets      Type       Drives       Size      Size  Comments
    RS1           RAID 5     1,2,3,4    5.23TB    0.00MB  No tasks running
    Every time the system would 'lose' Drive 3 on boot, I would just keep rebooting until it was 'found', and then manually re-assign the now-'floating' drive as the spare - and the RAID would rebuild.
    There was never a problem until the day that prompted this post - when it would not find Drive 3 no matter what I did.  I turned the Mac Pro off for several hours until the drives had all cooled down and it still did not find the drive.  I left the machine on but unmounted the degraded volume until I got the new replacement drive.
    I really don't understand what you are getting at. It's like you are trying to tell me I set it up as a 4-drive RAID5 with no parity(!) and that I was in grave danger because one of the disks was gone.  The actual RAID contents (spread across Drives 1, 2 and 4) were never in danger, unless a 2nd disk had failed while the spare was not seen by the Apple RAID card.  I wasn't too worried about that happening.

  • Apple Raid Card panic on Mac Pro Early 2008 after installing SSD as an enhanced JBOD.

    I recently installed a SSD drive in my Mac Pro to replace an aging, original boot drive.  I have an Apple raid card with 3 other hds attached - all in an enhanced JBOD configuration.  After installing the SSD from OWC (3G Electra SATA II Compatible) everything appeared to work fine.  But after 36 hours I received a apple raid card kernel panic alert.  See below for diagnostic crash log.  OWC support says that their drive should work fine - now I am not so sure.  Anyone out there with suggestions/solutions is most welcomed.
    Anonymous UUID:       83ADF2C8-4D41-D2EE-58C2-0CC4344DB0B4
    Sun Jan  5 21:18:46 2014
    panic(cpu 3 caller 0xffffff7f98b1441e): "AppleRAIDCard controller panic"@/SourceCache/AppleHWRaidDriver/AppleHWRaidDriver-401/Driver/Driver/Apple RAIDCard.cp:1018
    Backtrace (CPU 3), Frame : Return Address
    0xffffff8221563e30 : 0xffffff8017622f69
    0xffffff8221563eb0 : 0xffffff7f98b1441e
    0xffffff8221563ef0 : 0xffffff8017aada80
    0xffffff8221563f30 : 0xffffff8017aac522
    0xffffff8221563f80 : 0xffffff8017aac5f7
    0xffffff8221563fb0 : 0xffffff80176d6aa7
          Kernel Extensions in backtrace:
             com.apple.driver.AppleRAIDCard(401.0)[06045EA1-0404-36C3-9BE6-FE217DCD420C]@0xf fffff7f98b11000->0xffffff7f98b26fff
                dependency: com.apple.iokit.IOSCSIBlockCommandsDevice(3.6.0)[657BB360-C3EA-3D01-934E-12DBD6 0BBBF5]@0xffffff7f97f80000
                dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7f97cba000
                dependency: com.apple.iokit.IOSCSIParallelFamily(3.0.0)[B6D80E76-647D-3BAE-823A-85871E9BAC7 2]@0xffffff7f97ca9000
                dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(3.6.0)[76253A22-A1DB-3BF4-A972-E6 94A37CD09A]@0xffffff7f97c78000
    BSD process name corresponding to current thread: kernel_task
    Mac OS version:
    13B42
    Kernel version:
    Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64
    Kernel UUID: 1D9369E3-D0A5-31B6-8D16-BFFBBB390393
    Kernel slide:     0x0000000017400000
    Kernel text base: 0xffffff8017600000
    System model name: MacPro3,1 (Mac-F42C88C8)
    System uptime in nanoseconds: 91308918786320
    last loaded kext at 89490169308794: com.apple.filesystems.smbfs          2.0.0 (addr 0xffffff7f99714000, size 335872)
    last unloaded kext at 1120636252260: com.apple.driver.StorageLynx          3.3.5 (addr 0xffffff7f99714000, size 8192)
    loaded kexts:
    com.apple.filesystems.smbfs          2.0.0
    com.apple.driver.AudioAUUC          1.60
    com.apple.filesystems.autofs          3.0
    com.apple.driver.AppleBluetoothMultitouch          80.14
    com.apple.iokit.IOBluetoothSerialManager          4.2.0f6
    com.apple.driver.AppleUpstreamUserClient          3.5.13
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.kext.AMDFramebuffer          1.1.4
    com.apple.iokit.CSRBluetoothHostControllerUSBTransport          4.2.0f6
    com.apple.AMDRadeonX3000          1.1.4
    com.apple.driver.AppleUSBDisplays          360.8.14
    com.apple.driver.AppleHDA          2.5.3fc1
    com.apple.driver.AppleMCEDriver          1.1.9
    com.apple.kext.AMD5000Controller          1.1.4
    com.apple.driver.AppleLPC          1.7.0
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.AppleHWAccess          1
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.XsanFilter          404
    com.apple.driver.Oxford_Semi          3.3.5
    com.apple.iokit.SCSITaskUserClient          3.6.0
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          35
    com.apple.driver.AppleIntel8254XEthernet          3.1.3b1
    com.apple.driver.AppleRAIDCard          401
    com.apple.driver.AppleUSBHub          650.4.4
    com.apple.driver.AppleAHCIPort          2.9.5
    com.apple.driver.AppleIntelPIIXATA          2.5.1
    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AppleUSBEHCI          650.4.1
    com.apple.driver.AppleUSBUHCI          650.4.0
    com.apple.driver.AppleACPIButtons          2.0
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    com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0
    com.apple.nke.applicationfirewall          153
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    com.apple.kext.triggers          1.0
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    com.apple.driver.AppleMultitouchDriver          245.13
    com.apple.iokit.IOSerialFamily          10.0.7
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.0f6
    com.apple.iokit.IOAcceleratorFamily          98.7.1
    com.apple.driver.DspFuncLib          2.5.3fc1
    com.apple.vecLib.kext          1.0.0
    com.apple.iokit.IOAudioFamily          1.9.4fc11
    com.apple.kext.OSvKernDSPLib          1.14
    com.apple.iokit.IONDRVSupport          2.3.6
    com.apple.iokit.IOFireWireIP          2.2.5
    com.apple.kext.AMDSupport          1.1.4
    com.apple.AppleGraphicsDeviceControl          3.4.12
    com.apple.iokit.IOSurface          91
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    com.apple.driver.AppleHDAController          2.5.3fc1
    com.apple.iokit.IOGraphicsFamily          2.3.6
    com.apple.iokit.IOHDAFamily          2.5.3fc1
    com.apple.driver.AppleSMC          3.1.6d1
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.5.1d27
    com.apple.driver.AppleUSBHIDMouse          180.9
    com.apple.driver.AppleHIDMouse          180.9
    com.apple.driver.AppleUSBHIDKeyboard          170.15
    com.apple.driver.AppleHIDKeyboard          170.15
    com.apple.iokit.IOUSBHIDDriver          650.4.4
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.driver.AppleUSBComposite          650.4.0
    com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.5.1
    com.apple.iokit.IOFireWireSBP2          4.2.5
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.0
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOATAPIProtocolTransport          3.5.0
    com.apple.iokit.IONetworkingFamily          3.2
    com.apple.iokit.IOSCSIParallelFamily          3.0.0
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.6.0
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.0
    com.apple.iokit.IOUSBUserClient          650.4.4
    com.apple.iokit.IOAHCIFamily          2.6.0
    com.apple.iokit.IOATAFamily          2.5.2
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOUSBFamily          650.4.4
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.iokit.IOHIDFamily          2.0.0
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          278.10
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.AppleKeyStore          2
    com.apple.driver.DiskImages          371.1
    com.apple.iokit.IOStorageFamily          1.9
    com.apple.iokit.IOReportFamily          21
    com.apple.driver.AppleFDEKeyStore          28.30
    com.apple.driver.AppleACPIPlatform          2.0
    com.apple.iokit.IOPCIFamily          2.8
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
    com.apple.kec.pthread          1
    System Profile:
    Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 18 GB, SMC 1.25f4
    Graphics: ATI Radeon HD 5870, ATI Radeon HD 5870, PCIe, 1024 MB
    Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600
    Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600
    Memory Module: DIMM Riser A/DIMM 1, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
    Memory Module: DIMM Riser A/DIMM 2, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
    Memory Module: DIMM Riser B/DIMM 3, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353142363445363830304600
    Memory Module: DIMM Riser B/DIMM 4, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353142363445363830304600
    Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600
    Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600
    Bluetooth: Version 4.2.0f6 12982, 3 services, 22 devices, 1 incoming serial ports
    Network Service: Ethernet 1, Ethernet, en0
    PCI Card: ATI Radeon HD 5870, Display Controller, Slot-1
    PCI Card: ATI Radeon HD 5870, ATY,LangurParent, Slot-1
    PCI Card: Apple RAID Card, RAID Controller, Slot-4
    Parallel ATA Device: PIONEER DVD-RW  DVR-112D
    USB Device: Hub
    USB Device: Keyboard Hub
    USB Device: Apple Optical USB Mouse
    USB Device: Apple Keyboard
    USB Device: XD-0405-U
    USB Device: Apple Cinema HD Display
    USB Device: USB2.0 Printer (Hi-speed)
    USB Device: Bluetooth USB Host Controller
    FireWire Device: built-in_hub, Up to 800 Mb/sec
    FireWire Device: unknown_device, Iomage HDD, Up to 800 Mb/sec
    FireWire Device: unknown_device, Unknown
    Thunderbolt Bus:

    RE: Mac Pro Replacement Graphics cards
    1) Apple brand cards,
    2) "sold in the Apple store" cards, and
    3) "Mac Edition" cards ...
    ... show all the screens, including Boot up screens, Safe Mode, Installer, Recovery, debug screens, and Alt/Option boot screens. At this writing, these choices include:
    1) Apple brand cards:
    • Apple-firmware 5770, about US$250** works near full speed in every model Mac Pro, Drivers in 10.6.5
    • Apple-firmware 5870, about US$450
    2) "sold in the Apple store" cards
    • NVIDIA Quadro 4000, about US$1200
    • NVIDIA Quadro 5000, about US$2500
    3) "Mac Edition" cards -- REQUIRE 10.8.3 or later:
    • SAPPHIRE HD 7950 3GB GDDR5 MAC Edition, about US$480** Vendor recommends Mac Pro 4,1
    • EVGA GTX 680 Mac Edition, about US$600
    The cards above require no more than the provided two 6-pin aux power connectors provided in the Mac Pro through 2012 model. Aux cables may not be provided for third-party cards, but are readily available.
    If you are Meet ALL of these:
    • running 10.8.3 or later AND
    • don't care about "no boot screens" etc AND
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    You can use many more cards, even most "PC-only cards"

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