Detection of host connectivity for data migration in a storage system

A system comprising:

• a processor;
• and
• memory storing computer program code that when executed on the processor causes the processor to execute a migration process between at least one source device and at least one target device in a storage system operable to perform the operations of:
• migrating one or more volumes from at least one source device to at least one target device in a storage system;
• determining a discovery state of one or more of the migrated volumes by one or more host devices in communication with the storage system by:
• configuring an initiator group for each of the one or more host devices;
• sending at least one inquiry from each initiator group to each of one or more volumes of the at least one target devices;
• and
• tracking responses to the at least one inquiry from each volume of the at least one target device;
• receiving a selection of one or more of the migrated volumes to include in a cutover operation, the selection based at least in part upon the determined discovery states;
• and
• deactivating one or more volumes of the at least one source device associated with the included volumes.

A computer program product including a non-transitory computer readable storage medium having computer program code encoded thereon that when executed on a processor of a computer causes the computer to execute a migration process between at least one source device and at least one target device in a storage system, the computer program product comprising:

• computer program code for migrating one or more volumes from at least one source device to at least one target device in a storage system;
• computer program code for determining a discovery state of one or more of the migrated volumes by one or more host devices in communication with the storage system by:
• configuring an initiator group for each of the one or more host devices;
• sending at least one inquiry to each of one or more volumes of the at least one target devices;
• and
• tracking responses to the at least one inquiry from each volume of the at least one target device;
• computer program code for receiving a selection of one or more of the migrated volumes to include in a cutover operation, the selection based at least in part upon the determined discovery states;
• and
• computer program code for deactivating one or more volumes of the at least one source device associated with the included volumes.