Data migration management apparatus and information processing system
The present invention provides a data migration management apparatus that can easily create a re-execution task for re-executing an error-terminated data migration task, and also can increase the possibility of the re-execution task being successful. In a case where a data migration from a migration-source volume to a migration-destination volume fails, the management apparatus uses the information of the failed task to create a re-execution task. The management apparatus changes the configuration of a volume pair as necessary. The management apparatus manages the failed task in association with the re-execution task.
1. An apparatus for performing data migration of an information processing device having a plurality of storage areas, comprising:
a memory configured to store a migration plan including a storage area of a migration source and a storage area of a migration destination as a task in a task management table; and
a microprocessor configured to execute the migration plan,
wherein the microprocessor is configured to:
obtain information related to a storage area of a migration source and a storage area of a migration destination;
obtain a copy speed from migration history information when there is migration history information which shows migration history from a same or similar storage area with the storage area of the migration source to the same or similar storage area with the storage area of the migration destination, and calculate a data migration time required for data migration by dividing a size of data which is migrated from the storage area of the migration source to the storage area of the migration destination at the copy speed; and
indicate the calculated data migration time associated with an identifier of the task.
2. The apparatus according to claim 1 , further comprising:
calculate a data migration time by dividing the size of data which is migrated from the storage area of the migration source to the storage area of the migration destination at a predetermined copy speed when there is no migration history information.
3. The apparatus according to claim 2 , wherein the microprocessor is configured to obtain information as to a storage area of the migration source and a storage area of the migration destination with respect to a migration task for which task execution has failed.
4. The apparatus according to claim 3 , wherein the microprocessor is further configured to:
recalculate a data migration time when the migration task for which task execution has failed;
perform a data volume pair configuration change when the recalculated data migration time is at least α times greater than a previously calculated data migration time, wherein α is a real number.
5. The apparatus according to claim 3 , wherein the microprocessor is further configured to:
recalculate a data migration time when the migration task for which task execution has failed;
perform a data volume pair configuration change when an error termination time of a most recently performed data migration is at least β times greater than the recalculated data migration time, wherein β is a real number.
6. The apparatus according to claim 2 , wherein the microprocessor is further configured to:
perform a data volume pair configuration change when a data migration completion time of a data volume for which data migration has been performed is at least γ times greater than a data migration completion time of another data volume for which data migration has been performed, wherein γ is a real number.
7. A method of performing data migration of an information processing device having a plurality of storage areas, comprising:
storing, in a memory, a migration plan including a storage area of a migration source and a storage area of a migration destination as a task in a task management table; and
executing, by a microprocessor, the migration plan,
wherein the executing comprises:
obtaining information related to a storage area of a migration source and a storage area of a migration destination;
obtaining a copy speed from migration history information when there is migration history information which shows migration history from a same or similar storage area with the storage area of the migration source to the same or similar storage area with the storage area of the migration destination, and calculating a data migration time required for data migration by dividing a size of data which is migrated from the storage area of the migration source to the storage area of the migration destination at the copy speed; and
indicating the calculated data migration time associated with an identifier of the task.
8. The method according to claim 7 , wherein the executing further comprises:
calculating a data migration time by dividing the size of data which is migrated from the storage area of the migration source to the storage area of the migration destination at a predetermined copy speed when there is no migration history information.
9. The method according to claim 8 , wherein the executing further comprises:
obtaining information as to a storage area of the migration source and a storage area of the migration destination with respect to a migration task for which task execution has failed.
10. The method according to claim 8 , wherein the executing further comprises:
recalculating a data migration time when the migration task for which task execution has failed;
performing a data volume pair configuration change when the recalculated data migration time is at least α times greater than a previously calculated data migration time, wherein α is a real number.
11. The method according to claim 8 , wherein the executing further comprises:
recalculating a data migration time when the migration task for which task execution has failed;
performing a data volume pair configuration change when an error termination time of a most recently performed data migration is at least β times greater than the recalculated data migration time, wherein β is a real number.
12. The method according to claim 7 , wherein the executing further comprises:
performing a data volume pair configuration change when a data migration completion time of a data volume for which data migration has been performed is at least γ times greater than a data migration completion time of another data volume for which data migration has been performed, wherein γ is a real number.
13. A non-transitory computer readable medium storing computer program product, which, when executed by a computer, performs data migration of an information processing device having a plurality of storage areas, the data migration comprising:
storing a migration plan including a storage area of a migration source and a storage area of a migration destination as a task in a task management table; and
obtaining information related to a storage area of a migration source and a storage area of a migration destination;
obtaining a copy speed from migration history information when there is migration history information which shows migration history from a same or similar storage area with the storage area of the migration source to the same or similar storage area with the storage area of the migration destination, and calculating a data migration time required for data migration by dividing a size of data which is migrated from the storage area of the migration source to the storage area of the migration destination at the copy speed; and
indicating the calculated data migration time associated with an identifier of the task.
14. The non-transitory computer readable medium according to claim 13 , wherein the data migration further comprises:
calculating a data migration time by dividing the size of data which is migrated from the storage area of the migration source to the storage area of the migration destination at a predetermined copy speed when there is no migration history information.
15. The non-transitory computer readable medium according to claim 14 , wherein the data migration further comprises:
obtaining information as to a storage area of the migration source and a storage area of the migration destination with respect to a migration task for which task execution has failed.
16. The non-transitory computer readable medium according to claim 14 , wherein the data migration further comprises:
recalculating a data migration time when the migration task for which task execution has failed;
performing a data volume pair configuration change when the recalculated data migration time is at least α times greater than a previously calculated data migration time, wherein α is a real number.
17. The non-transitory computer readable medium according to claim 14 , wherein the data migration further comprises:
recalculating a data migration time when the migration task for which task execution has failed;
performing a data volume pair configuration change when an error termination time of a most recently performed data migration is at least β times greater than the recalculated data migration time, wherein β is a real number.
18. The non-transitory computer readable medium according to claim 13 , wherein the data migration further comprises:
performing a data volume pair configuration change when a data migration completion time of a data volume for which data migration has been performed is at least γ times greater than a data migration completion time of another data volume for which data migration has been performed, wherein γ is a real number.