公开(公告)号：DE68925062D1

公开(公告)日：1996-01-25

申请号：DE68925062

申请日：1989-05-03

Applicant: IBM

Inventor： BLOUNT MICHELLE KAESER ,  CLARK CONNIE MAE ,  HARDING WARREN BRUCE ,  TANG HORACE TIN SZE

IPC: G06F3/06 ,  G06F12/08 ,  G06F17/30

Abstract: Image data objects are accumulated in a relatively rapid access data buffer, such as a combination of main memory and a rapid access magnetic DASD. An optical disk recorder having a record medium with a plurality of addressable sectors each capable of storing a predetermined number of the volume table of contents (VTOC) entries receives the accumulated data objects along with the associated VTOC entries in a single access whenever the number of accumulated data objects is an integral number of said predetermined number. A lower threshold for a minimal number of data bytes of the accumulated data objects may be required before such single access data recording operation is effected. An upper threshold of number of data bytes in the accumulated objects is also provided for causing the single access data transfer irrespective of the number of objects being an integral number of said predetermined number. The invention is advantageously practiced with a write-once, read-many record medium.

公开(公告)号：DE68925062T2

公开(公告)日：1996-06-20

申请号：DE68925062

申请日：1989-05-03

Applicant: IBM

Inventor： BLOUNT MICHELLE KAESER ,  CLARK CONNIE MAE ,  HARDING WARREN BRUCE ,  TANG HORACE TIN SZE

IPC: G06F3/06 ,  G06F12/08 ,  G06F17/30

Abstract: Image data objects are accumulated in a relatively rapid access data buffer, such as a combination of main memory and a rapid access magnetic DASD. An optical disk recorder having a record medium with a plurality of addressable sectors each capable of storing a predetermined number of the volume table of contents (VTOC) entries receives the accumulated data objects along with the associated VTOC entries in a single access whenever the number of accumulated data objects is an integral number of said predetermined number. A lower threshold for a minimal number of data bytes of the accumulated data objects may be required before such single access data recording operation is effected. An upper threshold of number of data bytes in the accumulated objects is also provided for causing the single access data transfer irrespective of the number of objects being an integral number of said predetermined number. The invention is advantageously practiced with a write-once, read-many record medium.

公开(公告)号：DE68925595D1

公开(公告)日：1996-03-21

申请号：DE68925595

申请日：1989-04-20

Applicant: IBM

Inventor： HARDING WARREN BRUCE ,  TENNISON ROBERT DOUGLAS ,  VOMASKA WILLIAM OTTO

IPC: G06F3/06 ,  G06F12/08 ,  G06F17/30

Abstract: A peripheral data storage hierarchy includes three storage levels. The top storage level is a fast accessing direct access storage device(s), such as magnetic disk drives. The intermediate level is an automatic warehouse type library, storing a large plurality of optical disks, which are automatically transferred between storage cells of the library and optical disk drives operatively connected to the host processor. The bottom level of the storage hierarchy includes one or more stand-alone optical disk drives and a shelf unit. Personnel manually carry the the optical disks between the stand-alone drives and the shelf unit upon mount and demount commands received from a host processor. The intermediate library level uses the same type of optical disk as used in the bottom level of the data storage hierarchy. An IO station in each of the automatic libraries enable manual access to the optical disk for transferring same between the intermediate and bottom levels. Preferably, the transfer is only from the intermediate level to the bottom level. Access to named storage objects in disks stored in the bottom level are through the stand-alone drives. A host processor has an independent access path to each level of the data storage hierarchy. A directory and other data structures indicate the number of copies made of each named data object and the location of such copies, such that the host processor 10 can independently access a copy from any level of the data storage hierarchy.

公开(公告)号：DE68920196T2

公开(公告)日：1995-06-29

申请号：DE68920196

申请日：1989-05-03

Applicant: IBM

Inventor： CLARK CONNIE MAE ,  HARDING WARREN BRUCE ,  TANG HORACE TIN SZE

IPC: G06F3/06 ,  G06F12/08 ,  G06F12/12 ,  G11B23/00 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  G11B27/36

Abstract: A method for managing data in a data storage library, and a data storage hierarchy suitable therefor, is disclosed. The data storage hierarchy includes an optical library and separate manually operated shelf storage. The optical library includes at least one optical disk drive and a plurality of storage cells for the storage of optical disks. The optical library also includes automatic means for transferring optical disks from the storage cells to the optical disk drives in the library. The host data processor, upon determining that particular data is required to be stored in the optical library, first checks to determine if the optical disks in the optical library currently have the capacity for the storage of such data. If the capacity exists in the optical library there is no problem and the data is stored therein. If the optical library does not have the required capacity, or if the system operator so requires, the optical disk in the optical library which has least recently been mounted on an optical disk drive therein is destaged from the optical library to the manually operated shelf storage. Another disk may then be fed into the optical library for the storage of the data required therein.

公开(公告)号：ES2065987T3

公开(公告)日：1995-03-01

申请号：ES89304438

申请日：1989-05-03

Applicant: IBM

Inventor： CLARK CONNIE MAE ,  HARDING WARREN BRUCE ,  TANG HORACE TIN SZE

IPC: G06F3/06 ,  G06F12/08 ,  G06F12/12 ,  G11B23/00 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  G11B27/36

Abstract: A method for managing data in a data storage library, and a data storage hierarchy suitable therefor, is disclosed. The data storage hierarchy includes an optical library and separate manually operated shelf storage. The optical library includes at least one optical disk drive and a plurality of storage cells for the storage of optical disks. The optical library also includes automatic means for transferring optical disks from the storage cells to the optical disk drives in the library. The host data processor, upon determining that particular data is required to be stored in the optical library, first checks to determine if the optical disks in the optical library currently have the capacity for the storage of such data. If the capacity exists in the optical library there is no problem and the data is stored therein. If the optical library does not have the required capacity, or if the system operator so requires, the optical disk in the optical library which has least recently been mounted on an optical disk drive therein is destaged from the optical library to the manually operated shelf storage. Another disk may then be fed into the optical library for the storage of the data required therein.

公开(公告)号：DE68920196D1

公开(公告)日：1995-02-09

申请号：DE68920196

申请日：1989-05-03

Applicant: IBM

Inventor： CLARK CONNIE MAE ,  HARDING WARREN BRUCE ,  TANG HORACE TIN SZE

IPC: G06F3/06 ,  G06F12/08 ,  G06F12/12 ,  G11B23/00 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  G11B27/36

Abstract: A method for managing data in a data storage library, and a data storage hierarchy suitable therefor, is disclosed. The data storage hierarchy includes an optical library and separate manually operated shelf storage. The optical library includes at least one optical disk drive and a plurality of storage cells for the storage of optical disks. The optical library also includes automatic means for transferring optical disks from the storage cells to the optical disk drives in the library. The host data processor, upon determining that particular data is required to be stored in the optical library, first checks to determine if the optical disks in the optical library currently have the capacity for the storage of such data. If the capacity exists in the optical library there is no problem and the data is stored therein. If the optical library does not have the required capacity, or if the system operator so requires, the optical disk in the optical library which has least recently been mounted on an optical disk drive therein is destaged from the optical library to the manually operated shelf storage. Another disk may then be fed into the optical library for the storage of the data required therein.

公开(公告)号：BR8902096A

公开(公告)日：1989-12-05

申请号：BR8902096

申请日：1989-05-04

Applicant: IBM

Inventor： CLARK CONNIE MAE ,  HARDING WARREN BRUCE ,  TANG HORACE TIN SZE

IPC: G06F3/06 ,  G06F12/08 ,  G06F12/12 ,  G11B23/00 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  G11B27/36 ,  G06F13/00

Abstract: A method for managing data in a data storage library, and a data storage hierarchy suitable therefor, is disclosed. The data storage hierarchy includes an optical library and separate manually operated shelf storage. The optical library includes at least one optical disk drive and a plurality of storage cells for the storage of optical disks. The optical library also includes automatic means for transferring optical disks from the storage cells to the optical disk drives in the library. The host data processor, upon determining that particular data is required to be stored in the optical library, first checks to determine if the optical disks in the optical library currently have the capacity for the storage of such data. If the capacity exists in the optical library there is no problem and the data is stored therein. If the optical library does not have the required capacity, or if the system operator so requires, the optical disk in the optical library which has least recently been mounted on an optical disk drive therein is destaged from the optical library to the manually operated shelf storage. Another disk may then be fed into the optical library for the storage of the data required therein.