Computer system with virtualization function
AssigneeHitachi, Ltd.
InventorsAkihiro Mannen, Yasuyuki Mimatsu, Hiroshi Arakawa, Naoto Matsunami, Kenji Muraoka
Life of this patent
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Abstract
A method of creating a copy of a virtualized storage region in a data processing system for virtualizing the storage region. A server manages the correlation between the virtualized storage region and the physical storage region, utilizes the function of the storage unit for those physical storage regions having a function, and the function for those physical storage regions without the function, to efficiently copy the virtualized storage region.
Claims14
A computer system comprising:
- a first computer;
- a second computer;
- and a storage unit system connected to the first computer and to the second computer;
- wherein the first computer:
- offers the storage region possessed by the storage unit system as a virtual storage region to the second computer;
- receives an instruction for the virtual storage region from the second computer;
- and,
- either sends an instruction corresponding to the above instruction to the storage unit system corresponding to the virtual storage region or executes the processing corresponding to the instruction, depending upon the characteristics of the storage unit system.
A computer system comprising:
- a first computer;
- a second computer;
- and
- a storage unit system connected to the first computer and to the second computer;
- wherein the first computer:
- offers the storage region possessed by the storage unit system as a virtual storage region to the second computer;
- receives an instruction for copying the virtual storage region from the second computer;
- and
- either instructs the storage unit system to copy the storage region possessed by the storage unit system corresponding to the virtual storage region, or reads the data from the storage region possessed by the storage unit system and writes the data onto a separate storage region possessed by the storage unit system, depending upon the characteristics of the storage unit system.
A computer connected to a first computer and to a storage unit system, comprising:
- a processor;
- and
- a memory;
- wherein the computer:
- offers the storage region possessed by the storage unit system as a virtual storage region to the first computer;
- receives an instruction for copying the virtual storage region from the first computer;
- and either instructs the storage unit system to copy the storage region possessed by the storage unit system corresponding to the virtual storage region, or reads the data from the storage region possessed by the storage unit system and writes the data onto a separate storage region possessed by the storage unit system, depending upon the characteristics of the storage unit system.
A method of copying data in a computer system having a first computer, a second computer and a storage unit system connected to the first computer and to the second computer, comprising the steps of:
- allowing the first computer to determine whether the storage unit system has means for creating a copy of a storage region possessed by the storage unit system;
- and
- instructing the storage unit system to copy the storage region, or to read the data from the storage region and stores them into a predetermined storage region, depending upon the result of the determination.
A computer system comprising:
- a first computer;
- a second computer;
- and
- a storage unit system connected to the first computer and to the second computer;
- wherein the first computer:
- offers the storage region possessed by the storage unit system as a virtual storage region to the second computer;
- and
- either instructs the storage unit system to execute the processing for the storage region possessed by the storage unit system corresponding to the virtual storage region, or executes the processing for the storage region possessed by the storage unit system, depending upon the characteristics of the storage unit system.
A computer system comprising:
- a first computer;
- and
- a storage unit system connected to the first computer;
- wherein the first computer:
- offers the storage region possessed by the storage unit system as a virtual storage region to a second computer connected to the storage unit system;
- receives an instruction for the virtual storage region from the second computer;
- and
- either transmits an instruction corresponding to the instruction to the storage unit system corresponding to the virtual storage region, or executes the processing for the instruction, depending upon the characteristics of the storage unit system.
Dependencies are inferred from the claim text.