Accusys Acuta User Manual
Page 54
Accusys Acuta User’s Manual
54
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Array
See Disk Array.
Array Management Software
The body of software that provides common control and management for a disk array. Array
Management Software most often executes in a disk controller or intelligent host bus adapter,
but may also execute in a host computer. When it executes in a disk controller or adapter, Array
Management Software is often referred to as Firmware.
Cache
Controller memory used to speed up data transfer to and from a disk.
Disk Array
A collection of disks from one or more commonly accessible disk controllers, combined with a
body of Array Management Software. Array Management Software controls the disks and
presents them to the array operating environment as one or more virtual disks.
Firmware
See Array Management Software.
Host Computer
Any computer system to which disks are directly attached and accessible for I/O. Mainframes,
and servers, as well as workstations and personal computers, can all be considered host
computers in the context of this manual, as long as they have disks attached to them.
IEEE 1394
IEEE 1394 is a standard for transmitting data between devices at high speed - up to 400 Mbps
(in 1394a) and 800 Mbps (in 1394b). IEEE 1394 also supports isochronously data transfer,
which is ideal if you need to transfer large amounts of data in real time. The standard is also
known as FireWire and i.Link. A single port can be used to connect up to 63 external devices.