GlossaryAAdaptec Storage Manager AgentRuns in the background on your system, monitoring and managing event notifications, tasks schedules,and other on-going processes in your storage space. It requires no user intervention and includes no userinterface.available spaceSpace on a disk drive that is not being used by a logical drive. When a logical drive is deleted, its spacebecomes available. See also logical drive.Bbackground consistency checkA controller function that continually and automatically verifies your logical drives once they’re in use.bootable-CD modeA way of running Adaptec Storage Manager, where the application is not installed but is run directly from aCD.CcacheA temporary, fast storage area that holds data from a slower storage device for quick access. Cache storageis normally transparent to the accessing device.channelAny path used for the transfer of data and the control of information between disk drives and a RAIDcontroller.controllerA hardware device that interprets signals between a host and a disk drive. Also known as an adapter or card.See also I/O.copybackAdaptec RAID controller feature that allows data that has been moved to a hot spare to be returned to itsoriginal location once the controller detects that the failed drive has been replaced.