In storage terminology a
massive array of idle disks,
or MAID as it is abbreviated, is a technology that uses a large group of
hard
disk drives, hundreds or even thousands, with only those drives that are needed
actively spinning at any given time. MAID is a storage system solution that
reduces both wear on the drives and also reduces power consumption. Because only
specific disks spin at a given time, what is not in use is literally a
massive
array of idle disks, which also means the system produces less heat than
other large storage systems.
One type of MAID is called the Copan array (Copan Systems Inc.). The Copan array
treats drives in the array similar to a tape library (
VTL) where only what is
needed is actually powered. A Copan array can contain hundreds
of terabytes of disks which share
supply,
controller, and
cabinet.
See also disk array.
