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公开(公告)号:DE69312589T2
公开(公告)日:1998-02-19
申请号:DE69312589
申请日:1993-05-07
Applicant: IBM
Inventor: BRICE FRANK WILLIAM , ELLIOTT JOSEPH CHARLES , FREDERICKS KENNETH JAMES , GALBRAITH ROBERT EDWARD , HALMA MARTEN JAN , HOUGH ROGER ELDRED , JOHN SUZANNE MARIE , MALINOWSKI PAUL ANTHONY , MERITT ALLAN SAMUEL , OAKES KENNETH JAMES , RATHJEN JOHN CORD , SACHS MARTIN WILLIAM , STUCKI DAVID EMMETT , WYMAN LESLIE WOOD
Abstract: Provides a method for increasing the connectivity of I/O resources to a multiplicity of operating systems (OSs) running in different resource partitions of a computer electronic complex (CEC) to obtain sharing of the I/O resources among the OSs of the CEC, including channels, subchannels (devices), and control units (CUs). The invention provides image identifiers (IIDs) for assigning resources to the different OSs. Each shared I/O resource has a sharing set of control blocks (CBs) in which a respective CB is assigned to (and located by) a respective IID of one of the OSs. Each of the CBs in a sharing set provides a different image of the same I/O resource. The different CB images are independently set to different states by I/O operations for the different OSs, so that the OSs can independently share the same I/O resource.
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公开(公告)号:DE69312589D1
公开(公告)日:1997-09-04
申请号:DE69312589
申请日:1993-05-07
Applicant: IBM
Inventor: BRICE FRANK WILLIAM , ELLIOTT JOSEPH CHARLES , FREDERICKS KENNETH JAMES , GALBRAITH ROBERT EDWARD , HALMA MARTEN JAN , HOUGH ROGER ELDRED , JOHN SUZANNE MARIE , MALINOWSKI PAUL ANTHONY , MERITT ALLAN SAMUEL , OAKES KENNETH JAMES , RATHJEN JOHN CORD , SACHS MARTIN WILLIAM , STUCKI DAVID EMMETT , WYMAN LESLIE WOOD
Abstract: Provides a method for increasing the connectivity of I/O resources to a multiplicity of operating systems (OSs) running in different resource partitions of a computer electronic complex (CEC) to obtain sharing of the I/O resources among the OSs of the CEC, including channels, subchannels (devices), and control units (CUs). The invention provides image identifiers (IIDs) for assigning resources to the different OSs. Each shared I/O resource has a sharing set of control blocks (CBs) in which a respective CB is assigned to (and located by) a respective IID of one of the OSs. Each of the CBs in a sharing set provides a different image of the same I/O resource. The different CB images are independently set to different states by I/O operations for the different OSs, so that the OSs can independently share the same I/O resource.
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公开(公告)号:CA2819160C
公开(公告)日:2020-08-04
申请号:CA2819160
申请日:2012-05-25
Applicant: IBM
Inventor: OAKES KENNETH JAMES , SUTTON PETER GRIMM , DRIEVER PETER DANA , YUDENFRIEND HARRY , GLASSEN STEVEN GARDNER
IPC: G06F13/12
Abstract: An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory.
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公开(公告)号:CA2819161C
公开(公告)日:2019-12-03
申请号:CA2819161
申请日:2012-05-25
Applicant: IBM
Inventor: SZWED PETER KENNETH , OAKES KENNETH JAMES , SUTTON PETER GRIMM , DRIEVER PETER DANA , YUDENFRIEND HARRY , GLASSEN STEVEN GARDNER
Abstract: Provided is a method of executing a Start Subchannel instruction in a computing environment comprising main storage and storage class memory, said method comprising: responsive to determining that a subchannel identified by the Start Subchannel instruction is an Asynchronous Data Mover (ADM) subchannel, performing: obtaining an operation request block from main storage, the operation request block comprising an address of an operation block; based on the address of the operation block, obtaining the operation block from main storage, the operation block consisting of a request block, a response block, and one or more first move specification blocks (MSBs), wherein the request block comprises an MSB count field having a value indicating the number of one or more MSBs included in and referenced by the operation block, wherein the response block is configured to hold exception conditions, wherein each move specification block is configured to include an operation code field, a block count field, a main storage address field for addressing main storage, a storage class memory address field for addressing storage class memory, a block size field and a flags field; obtaining a move specification block of the one or more move specification blocks; determining based on the operation code in the obtained move specification block an operation that the obtained move specification block is configured to perform on blocks of storage class memory; based on the move specification block, initiating the operation on the blocks of storage class memory associated with a storage class memory address of the storage class memory address field; and responsive to at least initiating the operation and encountering an exception condition, storing information within the response block, wherein the response block comprises an exception flags field, a field validity field, a failing MSB address field, a failing indirect data address word (AIDAW) address field, a failing main storage address field and a failing storage class memory address field, the information relating to one or more exceptions resulting from the operation, wherein the one or more exceptions are related to at least one of: main storage associated with a main storage address of the main storage address field, storage class memory associated with a storage class memory address of the storage class memory address field, or the obtained move specification block, and wherein the information includes an indication of an exception and additional information relating to the exception, the additional information specifying one or more address exceptions.
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公开(公告)号:GB2505844B
公开(公告)日:2014-10-01
申请号:GB201400049
申请日:2012-05-25
Applicant: IBM
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公开(公告)号:SG194599A1
公开(公告)日:2013-12-30
申请号:SG2013078829
申请日:2012-05-22
Applicant: IBM
Inventor: GAINEY JR CHARLES , OAKES KENNETH JAMES , MATHIAS THOMAS BRIAN , SZWED PETER KENNETH , DRIEVER PETER DANA , SUTTON PETER GRIMM , YUDENFRIEND HARRY , TZORTZATOS ELPIDA , GLASSEN STEVEN GARDNER
Abstract: ion for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory.
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公开(公告)号:PT2601585E
公开(公告)日:2013-11-27
申请号:PT12723507
申请日:2012-05-25
Applicant: IBM
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公开(公告)号:AU2012265964A1
公开(公告)日:2013-05-02
申请号:AU2012265964
申请日:2012-05-22
Applicant: IBM
Inventor: GAINEY JR CHARLES , OAKES KENNETH JAMES , MATHIAS THOMAS BRIAN , SZWED PETER KENNETH , DRIEVER PETER DANA , SUTTON PETER GRIMM , YUDENFRIEND HARRY , TZORTZATOS ELPIDA , GLASSEN STEVEN GARDNER
IPC: G06F13/00
Abstract: An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory.
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公开(公告)号:CA2819213A1
公开(公告)日:2012-12-13
申请号:CA2819213
申请日:2012-05-22
Applicant: IBM
Inventor: GAINEY CHARLES JR , OAKES KENNETH JAMES , MATHIAS THOMAS BRIAN , SZWED PETER KENNETH , DRIEVER PETER DANA , SUTTON PETER GRIMM , YUDENFRIEND HARRY , TZORTZATOS ELPIDA , GLASSEN STEVEN GARDNER
IPC: G06F13/00
Abstract: An abstraction for storage class memory is provided that hides the details of the implementation of storage class memory from a program, and provides a standard channel programming interface for performing certain actions, such as controlling movement of data between main storage and storage class memory or managing storage class memory.
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公开(公告)号:CA2819161A1
公开(公告)日:2012-12-13
申请号:CA2819161
申请日:2012-05-25
Applicant: IBM
Inventor: SZWED PETER KENNETH , OAKES KENNETH JAMES , SUTTON PETER GRIMM , DRIEVER PETER DANA , YUDENFRIEND HARRY , GLASSEN STEVEN GARDNER
Abstract: Provided is a method of executing a Start Subchannel instruction in a computing environment comprising main storage and storage class memory, said method comprising: responsive to determining that a subchannel identified by the Start Subchannel instruction is an Asynchronous Data Mover (ADM) subchannel, performing: obtaining an operation request block from main storage, the operation request block comprising an address of an operation block; based on the address of the operation block, obtaining the operation block from main storage, the operation block consisting of a request block, a response block, and one or more first move specification blocks (MSBs), wherein the request block comprises an MSB count field having a value indicating the number of one or more MSBs included in and referenced by the operation block, wherein the response block is configured to hold exception conditions, wherein each move specification block is configured to include an operation code field, a block count field, a main storage address field for addressing main storage, a storage class memory address field for addressing storage class memory, a block size field and a flags field; obtaining a move specification block of the one or more move specification blocks; determining based on the operation code in the obtained move specification block an operation that the obtained move specification block is configured to perform on blocks of storage class memory; based on the move specification block, initiating the operation on the blocks of storage class memory associated with a storage class memory address of the storage class memory address field; and responsive to at least initiating the operation and encountering an exception condition, storing information within the response block, wherein the response block comprises an exception flags field, a field validity field, a failing MSB address field, a failing indirect data address word (AIDAW) address field, a failing main storage address field and a failing storage class memory address field, the information relating to one or more exceptions resulting from the operation, wherein the one or more exceptions are related to at least one of: main storage associated with a main storage address of the main storage address field, storage class memory associated with a storage class memory address of the storage class memory address field, or the obtained move specification block, and wherein the information includes an indication of an exception and additional information relating to the exception, the additional information specifying one or more address exceptions.
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