Upgrade orchestration of a storage system based on namespace range gaps

A computer system comprising:

• a processor set;
• one or more computer-readable storage media;
• and
• program instructions stored on the one or more computer-readable storage media to cause the processor set to perform operations comprising:
• identifying an upgrade to be made to a storage system, wherein the upgrade involves replacing a failed or failing drive of the storage system;
• receiving, at a management device from a plurality of storage devices of the storage system, namespace information for each of the plurality of storage devices, the namespace information being shared among the plurality of storage devices;
• determining, by the management device, whether a namespace gap exists based at least in part on the namespace information for each of the plurality of storage devices;
• determining, by the management device, whether a namespace gap conflict exists with respect to the upgrade, wherein a namespace gap conflict is determined to exist when it is determined that the namespace gap interferes with replacing the failed or failing drive of the storage system;
• and
• responsive to determining that the namespace gap conflicts with the upgrade, implementing the upgrade while reducing the namespace gap conflict.

A computer program product comprising:

• one or more computer-readable storage media;
• and
• program instructions stored on the one or more computer-readable storage media to perform operations comprising:
• identifying an upgrade to be made to a storage system, wherein the upgrade involves replacing a failed or failing drive of the storage system;
• receiving, at a management device from a plurality of storage devices of the storage system, namespace information for each of the plurality of storage devices, the namespace information being shared among the plurality of storage devices;
• determining, by the management device, whether a namespace gap exists based at least in part on the namespace information for each of the plurality of storage devices;
• determining, by the management device, whether a namespace gap conflict exists with respect to the upgrade, wherein a namespace gap conflict is determined to exist when it is determined that the namespace gap interferes with replacing the failed or failing drive of the storage system;
• and
• responsive to determining that the namespace gap conflicts with the upgrade, implementing the upgrade while reducing the namespace gap conflict.