Restoration apparatus
AssigneeFujitsu Limited
InventorsKaoru Ueno, Takashi Nakao, Yoshiyasu Sugiyama
Life of this patent
Estimating the term…
Abstract
A restoration apparatus restores backup data without running an operating system (OS) until a time point until which the total amount of the data read out along with the start-up of the OS and a business system remains equal to or smaller than the total amount of the data that is restorable while running the OS and the business system, and subsequently restores the backup data in parallel with the start-up of the OS and the business system.
Claims12
A non-transitory computer-readable recording medium having stored therein a program for causing a computer to execute a process, the process comprising:
- calculating a first time point, the first time point being a time point at which a first total amount becomes larger than a second total amount, the first total amount being a total amount of data read out for start-up of an operating system and a business system after a restoration begins, and the second total amount being a total amount of data restored from backup data of the operating system and the business system after the restoration begins without running the operating system,
- restoring data from the backup data without running the operating system up to the first time point;
- starting up the operating system and the business system after the first time point;
- and
- continuing to restore the backup data after the first time point in parallel with the start-up of the operating system and the business system.
A restoration apparatus comprising:
- a storage unit that stores therein backup data in which an operating system and a business system are backed up;
- a calculation unit that calculates a first time point, the first time point being a time point at which a first total amount becomes larger than a second total amount, the first total amount being a total amount of data read out for start-up of the operating system and the business system after a restoration begins, and the second total amount being a total amount of data restored from backup data after the restoration begins without running the operating system,
- a first restoring unit that restores data from the backup data without running the operating system up to the first time point;
- a starting unit that starts up the operating system and the business system after the first time point;
- and
- a second restoring unit that continues restoring of the backup data after the first time point in parallel with the start-up of the operating system and the business system.
A restoration apparatus comprising:
- a processor;
- and
- a memory, wherein
- the memory stores therein backup data in which an operating system and a business system are backed up,
- the processor executes a process comprising:
- calculating a first time point, the first time point being a time point at which a first total amount becomes larger than a second total amount, the first total amount being a total amount of data read out for start-up of the operating system and the business system after a restoration begins, and the second total amount being a total amount of data restored from backup data of the operating system and the business system after the restoration begins without running the operating system,
- restoring data from the backup data without running the operating system up to the first time point;
- starting up the operating system and the business system after the first time point;
- and
- continuing to restore the backup data after the first time point in parallel with the start-up of the operating system and the business system.
Dependencies are inferred from the claim text.