For the last couple of years I've been using an offsite backup method. And today the drive I use for that failed on me. My backup program reported that it could write (or read) data to the drive.
Investigation showed that several directories in the TrueCrypt volume were gone!!!!! Thankfully, the data on my Drobo and server were still pristine condition.
Disk Utility and several other tools reported problems with the drive (or at least the TrueCrypt part/volume). So I erased the drive, and re-initialized it. No reports of trouble while I did that. After that I recreated the TrueCrypt volume and restarted the backup to the drive (which takes forever).
All I can do now is wait for the backup to finish, and pray that the house doesn't catch on fire.....
After that a new case for SpinRite.