Instantaneous save/restore of virtual machines with persistent memory
AssigneeInternational Business Machines Corporation
InventorsBulent Abali, Mohammad Banikazemi, John A. Bivens, Michael R. Hines, Dan E. Poff
Life of this patent
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Abstract
A computer implemented method creates a snapshot of a logical volume of a computer. The computer stores a system state of the computer in persistent memory. The computer flushes a cash of the computer. The computer identifies a preceding snapshot. Responsive to identifying the preceding snapshot, the computer hardens changes occurring after the preceding snapshot. The computer then switches from a first indirection table to a second indirection table.
Claims8
A computer implemented method for creating a snapshot of a logical volume of a computer, the method comprising:
- storing, by the computer, a system state of the computer in persistent memory;
- flushing, by the computer, a cash of the computer;
- identifying, by the computer, a preceding snapshot;
- responsive to identifying the preceding snapshot, hardening, by the computer, changes occurring after the preceding snapshot;
- and
- switching, by the computer, from a first indirection table to a second indirection table.
Dependencies are inferred from the claim text.