istat disks

Monitor every aspect of your Mac, including CPU, memory, disks and network.

Monitor your system right from the menubar.

Communicate vital OS X statistics to iOS.

Catalog your disks.

Catalog your external media and disks (was CDFinder).

Clean your system's disks, memory, and cache.

Monitor and control application access to your network and disks.

Boost memory and clean disks.

Create emergency boot disks, recover damaged files, and do basic cloning.

Utility that keeps local disks from sleeping.