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

Claim 1:
2. The method according to claim 1, wherein the attribute further comprises at least one of following items:
a data protection server identifier representing an identifier of a data protection server that initiates the backup among the plurality of data protection servers;
a lock role representing a role that executes the lock operation;
a backup identifier representing an identifier of the backup;
a backup hash value representing a value obtained by hashing the backup;
a storage identifier representing an identifier of the storage server;
a lock mode representing a mode used by the lock operation;
a last lock attribute record representing an address of a lock attribute record of a last lock operation for the backup; and
an illegality tag indicating whether the lock operation is illegal, the illegality tag comprising a retention time being shortened relative to the last lock operation.