Operator message commands for testing a coupling facility

• US 9,037,907 B2
• Filed: 06/10/2011
• Issued: 05/19/2015
• Est. Priority Date: 06/10/2011
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Elko, David A., Goss, Steven N., Shaw, Thomas C.
• Primary Examiner(s): Lottich, Joshua P
• Application Number:
  US13/157,913
• Publication Number:
  US 20120317436A1
• Time in Patent Office: 1,439 Days
• Field of Search: 714/25, 714/26, 714/27, 714/35, 714/40, 714/46
• US Class Current: 714/25
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 11/22 Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
• CPC Class Codes: G06F 11/2294 by remote test

Abstract

A facility is provided to enable operator message commands from multiple, distinct sources to be provided to a coupling facility of a computing environment for processing. These commands are used, for instance, to perform actions on the coupling facility, and may be received from consoles coupled to the coupling facility, as well as logical partitions or other systems coupled thereto. Responsive to performing the commands, responses are returned to the initiators of the commands.

Claims

1. A computer program product for testing a coupling facility of a computing environment, said coupling facility being coupled to one or more processor images of the computing environment, said computer program product comprising:

a non-transitory computer readable storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising;

receiving by the coupling facility an operator message command from a source remote from the coupling facility, the source being other than a console of the coupling facility, and the operator message command having an operator message token associated therewith to identify a buffer for use in processing the operator message command, the buffer comprising a token field for storing the operator message token;

processing by the coupling facility the operator message command to perform an action on the coupling facility; and

providing by the coupling facility a response to the operator message command, the response to be analyzed to determine an affect of the action on the coupling facility.

2. The computer program product of claim 1, wherein the receiving comprises receiving the operator message command based on the source receiving the operator message command from one of a console coupled to the source or a program of a processor image.

3. The computer program product of claim 1, wherein the receiving comprises receiving by the coupling facility a start operator message command that includes the operator message command to be performed at the coupling facility, and wherein the processing is performed, based on receiving the start operator message command.

4. The computer program product of claim 3, wherein the processing comprises placing information in the buffer, the buffer selected based on processing the start operator message command, the information resulting from performing the operator message command.

5. The computer program product of claim 4, wherein the method further comprises reading the buffer to obtain at least the information, the reading based on receiving a read operator message command issued based on receiving a specific return code for the start operator message command, and wherein the providing comprises providing the at least the information as the response.

6. The computer program product of claim 4, wherein the buffer further includes, based on processing the start operator message command, a timer to indicate a length of time an operator message has been active for the buffer, an operator message request length, an operator message response length and the operator message command.

7. The computer program product of claim 1, wherein the method further comprises deleting contents of the buffer, based on receiving a delete operator message command.

8. The computer program product of claim 1, wherein the receiving comprises receiving a plurality of operator message commands from multiple different types of sources, wherein the multiple different types of sources comprise one or more coupling facility consoles and one or more processor images coupled to, but separate, from the coupling facility.

9. The computer program product of claim 1, wherein the coupling facility comprises a shareable facility having storage and processing capabilities.

10. The computer program product of claim 1, wherein the action includes at least one of installing a patch of code on the coupling facility, creating a dump of a portion of the coupling facility, configuring the coupling facility, deconfiguring the coupling facility or managing one or more components of the coupling facility.

11. A computer system for testing a coupling facility of a computing environment, said coupling facility being coupled to one or more processor images of the computing environment, said computer system comprising:

a memory; and

a processor in communications with the memory, the processor comprising hardware, and wherein the computer system is configured to perform a method, said method comprising;

receiving by the coupling facility an operator message command from a source remote from the coupling facility, the source being other than a console of the coupling facility, and the operator message command having an operator message token associated therewith to identify a buffer for use in processing the operator message command, the buffer comprising a token field for storing the operator message token;

processing by the coupling facility the operator message command to perform an action on the coupling facility; and

providing by the coupling facility a response to the operator message command, the response to be analyzed to determine an affect of the action on the coupling facility.

12. The computer system of claim 11, wherein the receiving comprises receiving by the coupling facility a start operator message command that includes the operator message command to be performed at the coupling facility, and wherein the processing is performed, based on receiving the start operator message command.

13. The computer system of claim 12, wherein the processing comprises placing information in the buffer, the buffer selected based on processing the start operator message command, the information resulting from performing the operator message command.

14. The computer system of claim 13, wherein the method further comprises reading the buffer to obtain at least the information, the reading based on receiving a read operator message command issued based on receiving a specific return code for the start operator message command, and wherein the providing comprises providing the at least the information as the response.

15. The computer system of claim 13, wherein the buffer further includes, based on processing the start operator message command, a timer to indicate a length of time an operator message has been active for the buffer, an operator message request length, an operator message response length and the operator message command.

16. The computer system of claim 11, wherein the method further comprises deleting contents of the buffer, based on receiving a delete operator message command.

17. The computer system of claim 11, wherein the receiving comprises receiving a plurality of operator message commands from multiple different types of sources, wherein the multiple different types of sources comprise one or more coupling facility consoles and one or more processor images coupled to, but separate, from the coupling facility.