On 4/16/13 5:20 PM, Ben Bucksch wrote: > However, I think the RAID5 problems are caused by bad design decisions > in the md implementation, not in the inherent concept of RAID5, though. I'm not so sure this is true. I once lost (backup) data on a proprietary non-mdadm RAID 5 system, too, because some spurious event caused problems for multiple drives at once. With mdadm, at least there's the opportunity to fix something with the raw disks, which proprietary systems don't allow. Knowing the right recovery steps to take is complex and easy to screw up, but there are many different things that could have gone wrong in the first place. As Adam Goryachev said, it's amazing how many of the the "my RAID died *and* I did something foolish" stories do end with getting the data back. This speaks well of the flexibility and power of mdadm in the true Unix sense, I think. -- Robert L Mathews, Tiger Technologies, http://www.tigertech.net/ -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html