公开(公告)号：GB2505125A

公开(公告)日：2014-02-19

申请号：GB201320846

申请日：2012-05-10

Applicant: IBM

Inventor： SZWED PETER KENNETH ,  OAKES KENNETH JAMES ,  SUTTON PETER GRIMM ,  DRIEVER PETER DANA ,  YUDENFRIEND HARRY ,  GLASSEN STEVEN GARDNER

IPC: G06F12/02 ,  G06F9/312

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.

公开(公告)号：SG194597A1

公开(公告)日：2013-12-30

申请号：SG2013078803

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.

公开(公告)号：SG186106A1

公开(公告)日：2013-01-30

申请号：SG2012087904

申请日：2010-11-08

Applicant: IBM

Inventor： SZWED PETER KENNETH ,  CRADDOCK DAVID ,  GREGG THOMAS ,  GLENDENING BETH ,  LAIS ERIC NORMAN ,  WILKINS STEPHEN GLENN ,  BRICE JR FRANK WILLIAM

Abstract: A measurement facility is provided for capturing and presenting fine-grained usage information for adapter functions in an input/output subsystem. Adapter specific input/output traffic is tracked on a per function basis and the results are dynamically presented to the user. This information is useful for performance tuning, load balancing and usage based charging, as examples.

公开(公告)号：CA2708939A1

公开(公告)日：2009-09-03

申请号：CA2708939

申请日：2009-02-16

Applicant: IBM

Inventor： SZWED PETER KENNETH ,  OSISEK DAMIAN ,  HELLER LISA ,  FARRELL MARK ,  GAINEY CHARLES JR ,  GREINER DAN

IPC: G06F11/07

Abstract: Management of storage used by pageable guests of a computing environment is facilitated. An enhanced suppression-on-protection facility is provided that enables the determination of which level of protection (host or guest) caused a fault condition, in response to an attempted storage access.