Multivolume group management

A computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• program instructions stored therein for execution by at least one of the one or more computer processors, the program instructions comprising instructions for:
• generating, by a processor, a conversion table for a stored dataset, wherein the stored dataset is stored over a plurality of media storage devices, having a corresponding plurality of physical identifiers, wherein in response to determining the dataset is unable to be fully stored on any one of the plurality of media storage devices, the dataset is distributed and stored over two or more of the plurality of media storage devices, wherein the conversion table assigns the plurality of physical identifiers to a corresponding plurality of sequentially ordered virtual identifiers, wherein each physical identifier is uniquely assigned to one virtual identifier;
• receiving, by the processor, a request for the stored dataset, wherein the request references the plurality of sequentially ordered virtual identifiers;
• in response to receiving the request, generating, by the processor, a response comprising an ordered list of physical identifiers using the conversion table;
• and
• responding, by the processor, to the request with the response.

A computer program product comprising:

• a computer readable storage medium and program instructions stored on the computer readable storage medium, the program instructions comprising instructions for:
• generating, by a processor, a conversion table for a stored dataset, wherein the stored dataset is stored over a plurality of media storage devices, having a corresponding plurality of physical identifiers, wherein in response to determining the dataset is unable to be fully stored on any one of the plurality of media storage devices, the dataset is distributed and stored over two or more of the plurality of media storage devices, wherein the conversion table assigns the plurality of physical identifiers to a corresponding plurality of sequentially ordered virtual identifiers, wherein each physical identifier is uniquely assigned to one virtual identifier;
• receiving, by the processor, a request for the stored dataset, wherein the request references the plurality of sequentially ordered virtual identifiers;
• in response to receiving the request, generating, by the processor, a response comprising an ordered list of physical identifiers using the conversion table;
• and
• responding, by the processor, to the request with the response.