Patent ID: 11947427
Assignee: EMC IP HOLDING COMPANY LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for storage management, comprising:
acquiring a lock attribute record in a lock attribute record blockchain from a data protection network for backing up data, the data protection network including a plurality of data protection servers that reach a consensus on the lock attribute record blockchain, the lock attribute record comprising a first attribute value of an attribute of a lock operation, the lock operation being used for preventing a backup of the data stored in a storage server from being tampered with, the lock attribute record being a block in the lock attribute record blockchain, the first attribute value comprising a first retention time of the lock operation, the first retention time generated by one the plurality of data protection servers;
acquiring, based on the lock attribute record, a second attribute value of the attribute of the lock operation from the storage server, the second attribute value comprising a second retention time of the lock operation; and
generating, based on determining that the first retention time does not match the second retention time, an alarm indicating that the backup is tampered with;
wherein the attribute comprises a timestamp representing a time at which the lock attribute record is created; and
wherein acquiring the lock attribute record comprises:
acquiring a plurality of candidate lock attribute records for the backup in the lock attribute record blockchain from the data protection network, and
determining a candidate lock attribute record with the time indicated by the timestamp exceeding a time threshold among the plurality of candidate lock attribute records as the lock attribute record.