raid

Disk Striping, No fault tolerance, group of disks act as a single disk, parts of a single file stored on multiple disks

Both mirroring (2 disks connected to single disk controller) and duplexing (separate disk controllers for each disk), complete copy of a file stored on each disk in a mirror

Striping with parity, provides fault tolerance, data can be recovered from parity stripes

Rootkit analyser

Network sniffer

Remote Administrator tool

Remote Administrator tool