RAID (Redundant Array of Independent Disks or Redundant Array of Inexpensive Disks)

A

storage technology that distributes data across a group of physically separate hard drives configured as a single logical memory unit. As RAID stores all data on redundant drives, it provides a considerable level of fault tolerance. RAID may involve drives on multiple servers in a cluster connected via a storage area network (SAN). A simpler and less expensive approach is known as just a bunch of disks (JBOD), which essentially is a bunch of disk drivers not configured as a RAID. See also JBOD, SAN, and server.

• 20
• 2:1
• 2:1
• 2:1
• 218–219 MHz Service
• 22
• 23B+D
• 23B+D
• 24
• 256-QAM
• 2.5 Gbps
• 2.5 Gbps
• 2.5 Gbps
• 2.5G (Two point Five Generation)
• 26
• 28
• 2B1Q (2 Binary 1 Quaternary)
• 2B+D
• 2 Binary 1 Quaternary (2B1Q)
• 2 cps, 2 Hz
• 2G (2nd Generation)
• 3
• 30
• 30B+D
• 30B+D