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PANIC! - Mac Pro 2008 RAID Card Vanished!

1765 Views 13 Replies Latest reply: Aug 28, 2012 11:20 AM by I am not a number, OK 6 RSS
Cacus Level 1 Level 1 (30 points)
Currently Being Moderated
May 2, 2012 2:06 AM

Hi all


Right I seem to have a major issue so hoping someone can help.


This morning I was using my MP there was a click the screen went blank and then the MP tried to reboot. The white light came on but the screens did not. I turn off the unit and all connected devices at the mains, waited a few mins and tried to re boot. The screen when blue but nothing loaded. I then got my old SL disk and booted from that. It booted and looking at disk utility there are no drives. Even worse I booted RAID utility and it tells me there is no RAID card!


Now in essence I have got no further due to having to leave for work but I thought I'd ask for advice / ideas before I got back to the machine tonight.


I will obviously try reseating the unit (with and without drives) but does it sound like the card is knackered!


If this turns out to be the case is there a way I will be able to (some how) access data off the three drives that were in a RAID 5 config. or is the data lost?


I do have a spare new battery for the card so would it be worth trying this as well?


Any pointers you could give would be appreciated.



Actually while were on the subject. If the card is dead then what card if any would you recommend to replace it with. (Not that I can currently afford to do this!). A actual Apple 2008 RAID card will be like Rocking Horse S**t to get hold of. It would need to be bootable and preferably do internal and external (but just internal would be fine)




Mac OS X (10.7.3)
  • The hatter Level 9 Level 9 (58,565 points)
    Currently Being Moderated
    May 2, 2012 3:42 AM (in response to Cacus)

    Drives fail. RAID5 should still have some backups (clone the volume(s) and use something whether TimeMachine or else).


    And putting equipment behind a strong 1500VA UPS


    External when you get a chance. Take a look at what has on their site.

  • The hatter Level 9 Level 9 (58,565 points)
    Currently Being Moderated
    May 2, 2012 4:37 AM (in response to Cacus)

    you need access to Apple RAID card. I should say computers fail and things always have more issues than first appear.


    Fail means always have duplicate backup redundant sets and so you have access to data and system, come heaven or high water. some go for off line backup too.

  • Ricks Level 6 Level 6 (11,515 points)
    Currently Being Moderated
    May 2, 2012 9:53 AM (in response to Cacus)

    To reinforce what hatter stated: you must always expect a failure. They happen at the worst times, in the strangest ways. The key to life is: have a backup!


    RAID5 means absolutely nothing, by itself, to protecting your data. Only a backup does that. As you have already seen, what now looks like a small event can cause you to lose your RAID. If the RAID volume information is damaged by a failure of the hardware RAID card, even replacing the card may not bring the RAID and the data back online.


    I would figure out a way to backup the data immediately that you make the data available. That is absolute first priority. If the data is worth the price of a hardware RAID card - it is worth actually protecting it by having a backup.


    hatter's point is - eventually, everything will fail. That is the only 100% guaranteed event. Having multiple copies is the bare minimum to protect against the inevitable.



  • The hatter Level 9 Level 9 (58,565 points)
    Currently Being Moderated
    May 2, 2012 11:32 AM (in response to Cacus)

    I would be doubly sure that you are on UPS with enough runtime to complete any task running.

    I have an APC + battery pack extension, the 24v extension adds about 60-75 minutes runtime.


    Hard to say not knowing what and why it 'died' there. A power surge or drop that even with UPS wasn't caught? Taking too long to recover an I/O? Time-limited error recovery for hardware RAID.


    Issues with the Apple RAID card battery are common needing to recondition.

  • Ricks Level 6 Level 6 (11,515 points)
    Currently Being Moderated
    May 2, 2012 11:52 AM (in response to Cacus)

    Sounds like a power issue of some sort started all this. Or it may have been the card overheated and shutoff on its own.


    The card runs as if it were a separate computer within a computer and can have strange corruption problems all by itself, just like a computer does. We cannot even assume a problem like this is hardware, or software. Can be either and mimmic a different problem altogether. Good thing the logs give some clues, or it would be impossible to diagnose except by swapping in parts and software/firmware/drivers looking for the culprit.


    Good point that a rebuild that gets interrupted can destroy your volume. Hard to get a UPS that will handle things for as long as some processes take on a hardware RAID rebuild, and that is just one of many little things can bite you with a hardware RAID.


    Proof will be in the pudding. Does the volume come back up fully verified?


    BTW, to answer one of your initial questions: If you fail a hardware RAID card and need to remount the drives, you must get an identical replacement card to accomplish that. The card literally created the volume that your computer sees. No other card can remount that volume except an identical one.



  • I am not a number, OK 6 Calculating status...
    Currently Being Moderated
    Aug 28, 2012 11:20 AM (in response to Cacus)

    Battery Info:


              First Installed:          12/03/2011 12:47


    "Although the card was installed in 2008."



    For what it's worth,  I believe that my card lost its battery history when the firmware was upgraded to M-


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