Desp
ite the very stable nature of OS X, users may come to a point where they have a need to repair a damaged disk. One solution for doing so is posted in an Apple Technical Information Library (TIL) article. Unix includes a powerful file checking function called "fsck" (File System Check). fsck is currently the most complete and powerful solution for checking and repairing OS X disks.
Check It Out: Repairing Mac OS X Disks