Terry, I, too, have many years of IT experience. I've had three VERY painful experiences with data loss and learned to keep regular backups and test them. I never dreamed that I'd have an Apple cloud data loss short of an apocalyptic cause. I do Time Machine backups and also do daily iTunes syncs for my iPad 2 and iPhone 5. The iTunes syncs didn't help but an iTunes backup would've. An Apple Store Genius recommended I try restoring from a backup saying that it would restore documents and settings but not take me back from iOS v8.0.2. Ah, well. I should do a monthly manual backup there as a secondary backup.
TO ALL WHO DO TIME MACHINE BACKUPS
...and have iCloud Drive enabled
(Confirmed this works in Mac OS X Mavericks or Yosemite Beta)
- Go to your Mac.
- Open the drive containing your Time Machine backups.
- Open the folder "Backups.backupdb".
- Open the folder that uses the name of your computer.
- Now you will see a number of folders with names that indicate the YYYY-MM-DD-xxxxxx.
- Determine what date you last saw your missing documents and open that folder.
- Click once on the folder containing your hard disk name.
- Enter "Mobile Documents" in the search field at the top of the window and press the 'return' key.
- Click on each until you see content. Many of mine had no content, presumably because nothing changed.
- Select one of the folders with "~Keynote", "~Numbers", or "~Pages" in the name. You'll see them by looking for the folder names that start with "com~apple
- Select the Documents folder and rejoice in the documents found.
I recommend copying these into a folder on your desktop. Once you have all the missing documents, locate the iCloud Drive folder (usually in the left iCloud Drive favorite) and copy the files into the appropriate Keynote, Numbers, or Pages folder. Take note that you may have some documents missing from one of the other apps like Preview. Caveat: these instructions will work with OS X Mavericks. I use the Yosemite Beta. I cannot verify on earlier OS versions.
PAINFUL LESSONS, LEARNED LESSONS
Regular successful backups are the key. Don't trust ANYONE to ensure your data is safe, even Apple. f you have a Windows machine, talk to a techie friend about the best backup method to use and be sure you do a regular iTunes backup of your device. If you have a Macintosh, Time Machine backups are a good method. They are automatic and incremental (they only copy what's changed). When you store them on an external drive (Is $80 too much to spend now that you've lost all that iCloud data? Think carefully before answering.) they are one step closer to restoration in case of failure. It has helped me restore important lost information about four times since I implemented it.