raven4d wrote:
Thank you very much loki for your encouragement , i do serve logical data recovery using ddrescue in most of the time to image bad sectors , and till now , over 30 bad sector HDDs were served using it , and am far away from physical data recoveries right now .
okay...ddrescue is a good start, but DDI is a lot better. Especially with the network add-on and DRE. Imagine loading up the file system while you mirror, selecting the files and folders that the client has requested and mirror those sectors first. Getting a lot of read errors? Oh, that is head 3. Let's disable that for now and get heads 0,1,2 mirrored, then we can go back and fight with head 3 later.
See what I'm saying. Not only will you get a better clone, you will have a better success rate at faster speeds. It also helps knowing that one heads does not read at all right at the start. Saves you wasting a lot of time once you know what the problem is.
Luke