storage control unitの例文
- Defect skipping was introduced in 1974 with the 3340 attached via the 3830 Model 2 Storage Control Unit
- The new device, developed under the code name Minnow, first shipped in 1971 as the 23FD, the program load component of the 2835 Storage Control Unit . and then as a standard part of most System 370 processing units and other IBM products.
- Beginning with its 1964 System / 360 announcement IBM's mainframes initially accessed CKD ( Count key data ) subsystems via a channel connected to separate Storage Control Units ( SCUs ) with attached Direct Access Storage Devices ( DASD ), typically a hard disk drive.
- CKD DASD are addressed like other Input / Output devices; for System / 360 and System / 370 DASD are addressed directly, through channels and the associated control units ( SCU or Storage Control Unit ), initially using three hexadecimal digits, one for channel and two for control unit and device, providing addressing for up to 16 channels, for up to 256 DASD access mechanisms / channel and 4, 096 DASD addresses total.
