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Shouldn't it be as simple as unplugging 2 or more raid drives, and then plugging them into a new machine, going to the raid controller and adding them as an "existing set". It doesn't seem to be the case, the little bit of information I have found online advises a lot of caution or to avoid doing it all. Has anyone tried and succeeded? Or can shed some in depth knowledge?
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First of all, there's the driver issue. If the two controllers use different drivers, your OS won't boot. Secondly, different controllers may handle parity XOR calculations differently, or may have their own proprietary data written to the disk to improve performance, reliability, whatever and that data may not be usable to a different controller Third, if it is the same controller, you should not have a problem unless they are on drastically different firmware revisions. This is all assuming you are using hardware or fake-hardware RAID. Strictly software RAID done by the OS is portable, but has other issues. | |||
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Tried, never succeeded. Even if you've backed up the controller/RAID configuration, and moved both of the drives to a machine with an identical RAID controller with the exact same firmware revision, and plugged them in in the same SCSI/SATA configuration, etc, you can still have problems, and the very slightest hiccup can make your RAID unrecoverable. Recovering RAID is a last resort. The proper procedure is to create a new RAID and migrate the data. You'll practically never have problems there. | |||
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