Controller-mediated volume transformation in a shared-resource environment

A computer-implemented method, comprising:

• receiving, utilizing a processor, a command, from an initiating host system, to send a notification to at least one other host system connected to a shared volume;
• broadcasting, utilizing the processor, an interrupt to the at least one other host system connected to the shared volume;
• receiving, utilizing the processor, a response from one or more of the at least one other host system connected to the shared volume;
• and
• notifying, utilizing the processor, the initiating host system of the response(s) received from the one or more of the at least one other host system connected to the shared volume.

A system, comprising:

• a processor and logic integrated with and/or executable by the processor, the logic being configured to cause the processor to:
• receive, from an initiating host system, a command to send a notification to at least one other host system connected to a shared volume;
• broadcast an interrupt to the at least one other host system connected to the shared volume;
• receive a response from one or more of the at least one other host systems connected to the shared volume;
• and
• notify the initiating host system of the response(s) received from the one or more of the at least one other host systems connected to the shared volume.

A computer program product for storage controller-mediated volume transformation in a shared-resource environment, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to:

• send, by the computer, a notify command to a storage controller of a shared volume, the notify command including an action;
• receive, by the computer, a message from the storage controller indicating that a response has been received from at least one other host system connected to the shared volume;
• review, by the computer, the response(s) received from the at least one other host system connected to the shared volume;
• and
• perform, by the computer, a transforming operation on the shared volume in response to the response(s) from the at least one other host system indicating that the at least one other host system successfully performed the action specified in the notify command.

A system, comprising:

• a processor and logic integrated with and/or executable by the processor, the logic being configured to cause the processor to:
• send a notify command to a storage controller of a shared volume, the notify command including an action;
• receive, from the storage controller, a message indicating that a response has been received from at least one other host system connected to the shared volume;
• review the response(s) received from the at least one other host system connected to the shared volume;
• and
• perform a transforming operation on the shared volume in response to the response(s) from the at least one other host system indicating that the at least one other host system successfully performed the action specified in the notify command.