I have a 2TB MyBook Studio II in RAID0 mode that I bought several years ago (so out of warranty) that has started failing.
via Firewire it simply hangs, whatever operation was being attempt stalls waiting for many minutes until finally timing out. Even when this happens the light on the front keeps moving up and down. Attempting to umount the driver causes Finder or via the terminal hang, including shutting down the system. The computer needs the drive to be physically disconnected so it can disaply the “do not disconnect” message or shut down. The drive itself needs the power disconnecting to restart.
via USB it simply drops the connection and becomes invisible to the computer. The light on the drive continues to move up and down, though once the USB connection has been removed the drive goes to sleep, and reconnecting it is sufficient for it to remount.
Being worried that the fault may be with the drives I have taken these out and performed a surface scan, but they check out okay. Being a RAID0 pair I cannot access them outside the MyBook though so cannot verify the data against a backup.
My second thought, having felt how warm the disks where when removing them, is that the drive was overheating. But testing is with a fan underneath as well as a desk fanblowing across the unit showed the same results, despite being noticably cooler to touch. Though I still wonder whether part of the units own electronics may have burned out rather than it being operating temperature.
My two questions therefore are:
a) Is the MyBook unit irreperably dead, or is there anything that can be done to repair it?
b) If I were to swap the disks with those in another MyBook Studio II would it be able to detect the format and allow them to be mounted so I can access my data? Or does the unit need to be able to store the array information (disk identifiers and RAID mode) and so would just see them as two new unknown disks. I do have access to a second unit, of similar age, but do not want to risk swapping without asking first just in case it reinitializes the disks.
Thanks for any help and advice anyone can offer.