My power source on one of my 500GB external hard drives seems to have malfunctioned. I am told that I can switch the faulty hard drive to my other and recover my data. I opened it up but have no idea what...
I assume you have a RAID 1 or "safe" configuration, i.e., two 500 GB hard disks which give you a total of 500 GB "safe" data. If you have a RAID 0 configuration (two 500 GB disks for a total of 1000 GB "fast" data), half of your data is now inaccessible and you'll need to ask a data recovery firm; I'd advise against trying to do it yourself.
With RAID 1 configurations, it's all much, much easier and safer.
The following does not work with "ALL" RAID 1 units; but it does work with most of them!
You need an external USB enclosure (not RAID), single disk, compatible with your existing disk. There are also "open air" connectors such as one from Kraun which accommodates both SATA and EIDE drives, and comes with an external power source, and which I warmly recommend (can be a lifesaver).
Connect the hard disk to the device's USB cable, connect the USB to your PC, and finally connect the power source. On some computers you need to first connect the power source to the drive, and connect the computer to the contraption last.
At this point there are two possibilities. One (rare): the RAID1 enclosure employed a partitioning/filesystem scheme which your PC does not support (e.g., HFS or something). You may be able to "see" the hard disk from a computer which "speaks" that filesystem: a Mac, or maybe a Linux computer.
Two (most common): the manufacturer used the simpler and cheaper and faster way, which is to split the EIDE signal and add very little circuitry to countersplit the drive controls. So the disk content is directly compatible with your PC. Also, the partitioning and format are the PC's native ones to save time and resources on data format conversion. You will hear the tingling sound of a hard disk being recognized, and all your data will be there.
Read EXTRA CAREFULLY your RAID1 manual for how to replace a broken disk: you want the GOOD disk to be copied onto the new, empty one, and not vice versa! If in doubt, buy two new disks and replace BOTH of them in the RAID1 enclosure. Then copy the data from the old, surviving disk onto the two brand-new, maybe bigger and faster ones.
Hope this helps, let me know how it goes.
Mar 18, 2010 |
Iomega 500GB Ultramax HD USB 2.0/FW 500 GB...