G-4
RAID EzAssist User’s Manual
Cache Flush
Refers to an operation where all unwritten blocks in a Write-Back Cache are
written to the target disk. This operation is necessary before powering down
the system.
Cache Line Size
The cache line size is defined as the size, in kilobytes (1024 bytes) of a
single I/O operation. The Cache Line Size function is set in conjunction with
stripe size and represents the size of the data “chunk” that will be read or
written at one time.
Caching
Caching allows data to be stored in a pre-designated area of a disk or RAM.
Caching is used to speed up the operation of RAID systems, disk drives,
computers and servers, or other peripheral devices.
CD-ROM
Compact Disk Read Only Memory. A removable read-only storage device
similar to an audio compact laser disk, and holding up to 640M of
information.
Channel
Any path used for the transfer of data and control information between
storage devices and a storage controller or I/O adapter. Also refers to one
SCSI bus on a disk array controller. Each disk array controller provides at
least one channel.
CISC
Complex Instruction Set Computing, a general purpose CPU architecture.
Cluster
A cluster is a group of terminals or workstations attached to a common
control unit or server or a group of several servers that share work and may
be able to back each other up if one server fails.
