![]() But, a quick scan immediately produces an error and I will have to run the Deep Scan which takes 3 minutes per gigabyte. So, I’ve been thinking about running Data Rescue 3 on the drive to pull everything I could from it. All lights on the Drobo itself are normal. Drobo Dashboard still shows that everything is good. Disk Utility still says “Invalid B-Tree Node Size” when scanned and no longer attempts to repair the disk when I try to. I have also tried TechTools which, when trying to rebuild, only takes a few seconds and says everything is fine. The only difference in the scans I could tell was the second time it only found 59 Disk malfunctions instead of 61. I am running Mac OS X 10.6.5 and DiskWarrior 4.2, the newest versions of each. An attempt to rebuild the directory could result in loss of data. The disk appears to have a newer version of Mac OS Disk format than this version of DiskWarrior. The directory of the disk “Unknown Disk” cannot be rebuilt. In the time that has passed I have run a Disk Warrior rebuild twice, once with Firewire 800 and once with USB 2.0, each scan taking about a 1.5 days. ![]() Or is it likely the drives are all good and Im dealing with a directory issue? If this is true, why isnt Drobo just rebuilding itself with the good drives? I have read on other sites and forums that this is a sign of a bad disk drive and that DW is likely to come back and say it cannot rebuild the disk. DW is reporting that “Speed reduced by disk malfunction: 61” I’m currently running a Disk Warrior rebuild which has been “Step 5: Locating Directory Data” for about 12 hours now. It still didn’t mount, but this time the drive was labeled “disk1s2” in Disk Utility and running another scan told me that there was an “Invalid B-Tree Node Size”. I put the Drobo into Standby and reconnected it with a USB cable (it has always been connected via firewire 800). I ran repair disk overnight which, I believe, told me it couldn’t do anything for me. When I initially connected the Drobo to my Mac, I didn’t know anything was wrong, but I did notice that it was at work doing something. All of the lights are green and the blue lights are where they should be in relation to the amount of data I’ve used on the drives. It was still labeled as “Drobo” in Disk Utility and the Drobo Dashboard reports everything is fine. ![]() I came home from Christmas break to find that my Drobo will not mount to my Macbook. ![]()
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