公开(公告)号：WO1984002014A1

公开(公告)日：1984-05-24

申请号：PCT/US1983001772

申请日：1983-11-14

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： STORAGE TECHNOLOGY CORPORATION ,  DODD, P., David ,  BLICKENSTAFF, Ronald, L. ,  COULSON, Richard, L. ,  MORENO, Robert, J. ,  TREDE, Brian, E.

IPC: G06F09/30

CPC classification number: G06F12/0802 ,  G06F12/0862 ,  G06F12/0866 ,  G06F12/0888 ,  G06F2212/6026 ,  G06F2212/6028 ,  G11B20/18 ,  G11B20/1883 ,  G11B2020/10916 ,  G11B2220/20

Abstract: A method for detection of a sequential data stream which can be performed in a data storage subsystem without host computer (10) intervention featuring examination of the channel program processed during a read operation for signals indicative that the data is not part of a sequential data stream, for example, embedded seek instructions. If a particular channel program does not contain such indications, the successive record or records may then be stated to a faster access memory device such as a solid-state cache (22). The invention is described in a plug-compatible, software-transparent configuration.

公开(公告)号：WO1984002017A1

公开(公告)日：1984-05-24

申请号：PCT/US1983001770

申请日：1983-11-14

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： STORAGE TECHNOLOGY CORPORATION ,  MORENO, Robert, J. ,  TREDE, Brian, E. ,  SCHMIDT, Robert, W.

IPC: G06F13/04

CPC classification number: G11B20/1883 ,  G06F12/0866 ,  G11B2220/20

Abstract: A solid-state cache memory subsystem configured to be used in conjunction with disk drives (26) for prestaging of data in advance of its being called for by a host computer (10). Buffer controller (32) is used for establishing and maintaining precise correspondence between storage locations in the solid-state array (34) and on the disk memory. The correspondence is used for establishing a reoriented position on a disk in the event of error detection, and in order to determine when a predetermined quantity of data has been read from the disk into the cache in a staging operation.