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Activity Forums Storage & Archiving Gspeed ES Pro RAID keeps disappearing from Mac, have to re-initialize!

  • Jesse Schluntz

    December 14, 2012 at 5:35 pm

    PROBLEM SOLVED???

    I installed the new ATTO raid card in my tower, hooked up the original raid & cable, and began copying data back over from the backups.

    After the standard, 2 days of copying multiple TB’s over, the transfer speed slowed to a crawl (suddenly 7 hours of data was supposed to take 2 days). I was unable to get the finder to stop copying or to log out, so I did the usual last resort, forced shutdown.

    Sure enough, the raid icon had disappeared from the desktop again, and the familiar “can’t recognize the disk” message was on my desktop.

    My only 2 remaining troubleshoot options after this new ATTO card were replacing the mini SAS cable or the raid itself. At this point I firmly believe it’s the raid. Why else would the raid go offline whenever I’m on my final day of file copying? My rationale is if the raid always vanishes once I’m almost finished rebuilding, it must be failing hardware.

    Is there anyone out there who thinks this could somehow be the mini SAS cable?

    I’ll confirm this whether this works next week once the new raid is up and I’m able to work on it with no issues.

    jesse

  • Rainer Wirth

    December 14, 2012 at 10:59 pm

    I think it’s definitely the raid. Cable would either there or not, not slowing down.

    Rainer

    factstory
    Rainer Wirth
    phone_0049-177-2156086
    Mac pro 8core
    Adobe,FCP,Avid
    several raid systems

  • Simon Blackledge

    December 15, 2012 at 10:03 am

    Raid chassis I’d say. Probably the backplane.

    These things are great but always a pain when this kinda stuff starts happening.

    Support is all well and good but unless you buy the complete setup from one supplier who know what they are doing they will always point you to support of that product.

    I really hope you get this sorted as I know what a pain it can be.

    And I would never point diskwarrior at any raid only single drives.

  • Jesse Schluntz

    December 15, 2012 at 4:37 pm

    I agree Simon. Would’ve been far easier to diagnose the issue if the same company was responsible for everything that’s connected to my computer rather than ATTO for the card, G drive for the raid and another company for the cable. Is there any company who sells complete setups?

    Why is diskwarrior bad for raids & external HD’s in your opinion?

    thanks
    jesse

  • Jesse Schluntz

    December 15, 2012 at 4:40 pm

    Sorry Simon I misread your post. Here is my correct question:

    Why is diskwarror bad to use on a raid?

    thanks
    jesse

  • Simon Blackledge

    December 17, 2012 at 2:43 pm

    Jesse,
    I’ve never had good results with DW with external raids only single drives.

    As a last resort maybe I would try. But if there is an issue like yours and its not reported as needs fixing in DiskUtil in OSX then its not an OS issue.

    Plus the the pure size of raids it would be quicker to just reformat the raid and re copy the media back over to the raid that sit there hoping a rebuild works.

    As for complete systems. I prefer a reseller I trust to buy everything from firstly. If I was in the US Bob would be my first call to ask his preference.

    S

  • Jesse Schluntz

    December 19, 2012 at 5:29 pm

    OH MY GOSH… IT HAPPENED AGIAN!

    After swapping out the ATTO card with a new one and having the same issue, I purchased a new MINI SAS cable and received a replacement RAID from G Technology. These were my last two possible causes of the problem.

    Since the RAID always seemed to vanish off my computer during the home stretch of file copying (final few hours of 10 TB), I reasoned it must have had something to do with my original RAID. I skipped swapping out the new cable and went for the newer RAID.

    This morning, after two days of restoring the files, I came into the office and found the same error code (-36), followed by the standard clicking of “OK”, then opening the raid to find zero files on it.

    The strange thing is that when the -36 error code appears, the files disappear off the RAID, but the RAID reads out as being mostly full (which it should). It’s when I restart that the OS (not the config tool, the OS) loses communication with the RAID and forces me to re-initialize it.

    I restarted and got the usual “disk not readable” drive warning, and had to re-initialize the new raid again on disk utility.

    I am not onto the final step, swapping the mini SAS cable. If this doesn’t fix the problem, I’m going to have to demand a new computer from Apple.

    UNBELIEVABLE…

    jesse

  • Jesse Schluntz

    December 19, 2012 at 5:40 pm

    Screen shots from this latest issue:

  • Simon Blackledge

    December 19, 2012 at 5:41 pm

    Are you sure you don’t have a corrupt file in your backup your copying across ?

    How are you restoring your media ? Not just drag n drop in Finder?

    s

  • Jesse Schluntz

    December 19, 2012 at 5:47 pm

    Are you sure you don’t have a corrupt file in your backup your copying across ?

    YES. THE -36 ERROR HAPPENS ON RANDOM FILES, AND ALWAYS DURING THE FINAL STRETCH OF FILE COPYING.

    How are you restoring your media ? Not just drag n drop in Finder?

    YES. DRAG FROM EXTERNAL BACKUP DRIVES TO THE RAID. WORKED PERFECTLY FOR ABOUT 9 MONTHS. ISSUE STARTED A COUPLE MONTHS AGO.

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