公开(公告)号：DE3381229D1

公开(公告)日：1990-03-29

申请号：DE3381229

申请日：1983-12-21

Applicant: IBM

Inventor： GODLSBEY MICHAEL ALFRED ,  JONES EUGENE REESE ,  MICKA WILLIAM FRANK ,  ROBINSON THOMAS SCOTT

IPC: G06K9/34

Abstract: A method of locating a single image in a field of images by scanning the field in a stream of video elements, interrogating said elements with a logic to produce a set of cells each representing a relatively small portion of a single image, and recombining said cells with another logic to produce a block representing an area containing said single image separated from its neighbours. An apparatus for locating a single image in a field of images, comprising a scanner (110) to produce a stream of video elements representing said field, an image memory (130) to store said video elements, a logic (151, 160) responsive to said elements to produce a set of cells each representing a relatively small portion of a single image, and another logic (153) responsive to said set of cells to produce a block representing an area containing said single image separated from its neighbours.

公开(公告)号：AU2003246954A1

公开(公告)日：2004-03-03

申请号：AU2003246954

申请日：2003-07-29

Applicant: IBM

Inventor： DAY KENNETH FAIRCLOUGH ,  MICKA WILLIAM FRANK

IPC: G06F3/06 ,  G06F11/20 ,  G06F12/00 ,  H04L1/00 ,  H04L1/16 ,  G06F9/00

Abstract: Provided are a method, system, and program for providing a mirror copy of data. An update to a primary storage is received and transferred to an intermediate system in a first transfer mode. The update is transferred from the intermediate system to a secondary storage in a second transfer mode, wherein the secondary storage provides a mirror copy of updates to the primary storage.

公开(公告)号：DE69329372T2

公开(公告)日：2001-03-01

申请号：DE69329372

申请日：1993-12-01

Applicant: IBM

Inventor： MICKA WILLIAM FRANK ,  MIKKELSEN CLAUS WILLIAM ,  SHOMLER ROBERT WESLEY

IPC: G06F12/16 ,  G06F11/20 ,  G06F11/14

Abstract: A system for asynchronously duplexing direct access storage device (DASD) data in a plurality of DASD subsystems has the advantage of decoupling the data duplexing operation from the DASD write I/O operation. This ensures the write does not incur unnecessary wait states in the subsystem. By establishing a sequence checkpoint at which time a set of information packets are grouped together and processed as a single sequence unit, this decoupling and independent operation takes place. Through this independence, data copying to a secondary location can take place without affecting the performance of the subsystems and also not affecting the corresponding integrity of the data that is being updated.

公开(公告)号：DE69502125T2

公开(公告)日：1998-11-19

申请号：DE69502125

申请日：1995-02-07

Applicant: IBM

Inventor： KERN ROBERT FREDERIC ,  MICKA WILLIAM FRANK ,  MIKKELSEN CLAUS WILLIAM ,  PAULSEN MICHAEL ALOYSIUS ,  SHOMLER ROBERT WESLEY

IPC: G06F3/06 ,  G06F11/20 ,  G06F13/00 ,  G11C29/00 ,  G06F11/14

Abstract: A remote data shadowing system provides synchronous, storage based, real time disaster recovery wherein a secondary site is located remote from the primary site. An error recovery program at the primary site quiesces applications running thereat for performing error recovery procedures and signalling both primary and secondary locations that failed duplex has occurred. The error recovery program determines the cause of failed duplex, and if error recovery is successful, duplex mode is resumed. If the error recovery program is unable to perform error recovery successfully, then further write updates at the primary site are prohibited and an error message is communicated to operators at both the primary and secondary sites.

公开(公告)号：DE69312781D1

公开(公告)日：1997-09-11

申请号：DE69312781

申请日：1993-04-13

Applicant: IBM

Inventor： COHN ODED ,  HARTUNG MICHAEL HOWARD ,  MICKA WILLIAM FRANK ,  MCCAULEY JOHN NORBERT ,  MIKKELSEN CLAUS WILLIAM ,  NAGIN KENNETH MICHAEL ,  NOVICK YORAM ,  WINOKUR ALEXANDER

IPC: G06F3/06 ,  G06F11/00 ,  G06F11/14 ,  G06F12/00 ,  G06F12/16

Abstract: A method and system disclosed for enhanced efficiency of backup copying of designated datasets stored within storage devices (61) coupled to the data processing system via a storage control unit (65) having memory (66) therein. Application execution is temporarily suspended to form a dataset logical-to-physical address concordance to be utilized to administer backup copying. Application initiated updates to uncopied portions of the designated datasets are temporarily deferred until sidefiles of the affected portions are written to memory (66). Portions of the designated datasets are then accessed and copied utilizing selected data retrieval command sequences. A sidefile status query is appended to said command sequences and the presence of data within memory (66) is determined. The sidefiles are then accessed and copied to alternate storage locations in a backup copy order defined by the address concordance.

公开(公告)号：SG143957A1

公开(公告)日：2008-07-29

申请号：SG2004030730

申请日：2004-05-21

Applicant: IBM

Inventor： BEARDSLEY BRENT CAMERON ,  MICKA WILLIAM FRANK

IPC: G06F11/20 ,  H04L29/06 ,  G06F12/16 ,  H04L29/08 ,  G06F13/00 ,  G06F11/04

Abstract: Method, System, and Program for Mirroring Data Between Sites A relationship is established between source data units in primary storage (8a) and corresponding target data units in secondary storage (8b). An initial copy of a11 source data units to the corresponding target data units is initiated. An update is received to a source data unit and a determination is made of whether a first write mode is indicated. If so, the update is copied to the source data unit in the first write mode to the corresponding target data unit. Otherwise, the update is copied to the source data unit corresponding target data unit in a second write mode if the first write mode is not indicated. If the first write mode is not indicated, a determination is made of whether a number of writes for a11 data units subject to the relationship falls below a threshold and, if so, the first write mode is indicated.

公开(公告)号：AT338303T

公开(公告)日：2006-09-15

申请号：AT04766037

申请日：2004-06-11

Applicant: IBM

Inventor： STANLEY WARREN ,  MICKA WILLIAM FRANK ,  WERNER SAM CLARK ,  TAL SIVEN ,  SPEAR GAIL ANDREA ,  BROWN THERESA MARY ,  SANCHEZ MATTHEW ,  RAHAV SHELI ,  JARVIS THOMAS CHARLES ,  HAYARDENY AMIRAM ,  TZAFRIR DALIT ,  FIENBLIT SHACHAR ,  MATOSEVICH RIVKA MAYRAZ ,  SHUKEVICH SVETLANA ,  NURIEL IFAT

IPC: G06F11/14 ,  G06F11/20

Abstract: Disclosed is a technique for reducing an amount of data transferred. A first indicator is maintained for each source block of data to indicate whether the source block of data has been updated in source storage since the source block of data was last transferred to target storage. A second indicator is maintained for each target block of data in target storage to indicate whether the target block of data has been updated in target storage since the target block of data was overwritten by a corresponding source block of data. When transferring data from the source storage to the target storage, each source block of data for which a first indicator has been set to indicate that the source block of data has been updated is transferred and each source block of data that corresponds to a target block of data for which a second indicator has been set to indicate that the target block of data has been updated is transferred.

公开(公告)号：DE69506155T2

公开(公告)日：1999-06-24

申请号：DE69506155

申请日：1995-03-02

Applicant: IBM

Inventor： MICKA WILLIAM FRANK ,  SHOMLER ROBERT WESLEY

IPC: G06F12/00 ,  G06F11/20 ,  G11C29/00 ,  G06F11/14

Abstract: Asynchronous remote data duplexing at a distant location is performed from copies based at a primary site storage subsystem using first and second pluralities of subsystems 12, 14 at primary and remote sites respectively. Each of the first plurality of subsystems is independently coupled to one or more of the second plurality of subsystems. The first plurality of subsystems are interconnected and the second plurality of subsystems are also interconnected. The method utilizes checkpoint messages to maintain sequence integrity between the first and second plurality of subsystems without the use of a centralized communications service.

公开(公告)号：CH620542A5

公开(公告)日：1980-11-28

申请号：CH757177

申请日：1977-06-21

Applicant: IBM

Inventor： MICKA WILLIAM FRANK ,  ROBINSON THOMAS SCOTT

IPC: G06K9/20 ,  G06T3/40 ,  G06T3/60 ,  G11C7/00 ,  G09G1/00 ,  G09G3/00

Abstract: 1533833 Storage arrangements INTERNATIONAL BUSINESS MACHINES CORP 15 June 1977 [30 June 1976] 25032/77 Heading G4A In apparatus for rotating by 90 degrees video data having 2048 bits per scan line, the data is deserialized and stored, parallel by byte, in successive row locations of a memory (40, Fig. 2, not shown) holding 2048 bytes in 8 rows, by incrementing address counter (41). Read out into registers (50-57) is effected column by column by incrementing the top 3 bits of the address counter for each state of the bottom 8 bits from which the rotated data may be read to an 8 by 8 storage array (60-67) so that corresponding bits of the 8 read out bytes are stored in the same column. Preferably two memories 118, 122 (Fig. 3) are used, one being read out whilst the other is loaded under the control of two counters (204, 206, Fig. 4, not shown) the first incremented normally for loading and the second having its top 3 bits incremented for each state of the bottom 8 bits for unloading, the top 3 bits being decoded to select to which if registers 150-157 the read out data is fed.

公开(公告)号：DE602004007925T2

公开(公告)日：2008-04-24

申请号：DE602004007925

申请日：2004-06-08

Applicant: IBM

Inventor： FACTOR MICHAEL ,  FIENBLIT SHACHAR ,  HAYARDENY AMIRAN ,  JARVIS THOMAS CHARLES ,  MATOSEVICH RIVKA MAYRAZ ,  MICKA WILLIAM FRANK ,  NURIEL IFAT ,  RAHAV SHELI ,  SHUKEVICH SVETLANA ,  SPEAR GAIL ANDREA ,  TAL SIVAN ,  TZAFRIR DALIT

IPC: G06F3/06 ,  G06F11/20 ,  G06F12/00 ,  G06F12/08

Abstract: Provided are a method, system, and program for managing a relationship between one target volume and one source volume. For each of the source volume and target volume, the memory includes: (i) at least one element, wherein each element represents a range of sequential data units in the volume; (ii) at least one relationship entry, wherein each relationship entry represents one relationship; (iii) at least one element pointer associating one element with one relationship entry, wherein the data units represented by the element are part of the relationship represented by the relationship entry that the pointer associates with the element; and (iv) one relationship pointer for each relationship entry associating the relationship entry with volume metadata, wherein the volume metadata provides information on the relationship represented by the relationship entry.