Library system, management apparatus, library apparatus, management method, and management program for managing data storage media

A management apparatus coupled to a library apparatus, the management apparatus comprising:

• a transmitter configured to transmit data to the library apparatus;
• a receiver configured to receive data from the library apparatus;
• and
• one or more processors configured to perform a procedure comprising:
• receiving management data from the library apparatus which describes replacement of a first drive by a second drive;
• determining, based on relationships between the management data and storage media in the library apparatus, which of the storage media is to become unusable for reading data or writing data or both reading and writing data, and designating the determined storage medium as the migration source medium;
• and
• sending to the library apparatus a data migration command containing migration source information that specifies the migration source medium, the data migration command requesting migration of data from the specified migration source medium to another storage medium.

A library apparatus comprising:

• a transport mechanism that transports storage media;
• a first drive configured to read data from and write data to a storage medium transported thereto by the transport mechanism, in response to an access request that is received;
• and
• a controller configured to perform a procedure comprising:
• sending, upon detection of replacement of the first drive by a second drive, management data describing the replacement of the first drive,
• determining, based on relationships between the management data and the storage media, which of the storage media is to become unusable for reading data or writing data or both reading and writing data, and designating the determined storage medium as a migration source medium, and
• migrating data from the designated migration source medium to another storage medium.

A computer-readable, non-transitory medium encoded with a management program, the management program causing a computer to perform a procedure comprising:

• receiving management data from a library apparatus which describes replacement of a first drive by a second drive;
• determining, based on relationships between the management data and storage media in the library apparatus, which of the storage media is to become unusable for reading data or writing data or both reading and writing data, and designating the determined storage medium as a migration source medium;
• and
• sending to the library apparatus a data migration command containing migration source information that specifies the migration source medium, the data migration command requesting migration of data from the specified migration source medium to another storage medium.