METHOD AND COMPUTER SYSTEM FOR EXECUTING START SUBCHANNEL INSTRUCTION IN COMPUTING ENVIRONMENT Russian patent published in 2015 - IPC G06F13/12 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to auxiliary storage devices of a computing environment.Disclosed is a method of executing a start subchannel instruction in a computing environment, comprising main storage and a solid-state storage, said method including: 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 (MSB), wherein the request block comprises an MSB count field having a value indicating the number of one or more MSB 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 solid-stage storage address field for addressing solid-stage storage, 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 solid-stage storage; based on the move specification block, initiating the operation on the blocks of solid-stage storage associated with a solid-stage storage address of the solid-stage storage address field; and responsive to at least initiating the operation and detecting 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 solid-state storage 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, solid-state storage associated with a solid-state storage address of the solid-state storage 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.

EFFECT: high efficiency of controlling auxiliary storage.

8 cl, 45 dwg