Method for correcting a program running on computer system
AssigneeHitachi, Ltd.
InventorsYoshifumi Takamoto, Nobutoshi Sagawa, Toshiyuki Ukai
Life of this patent
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Abstract
Disclosed herein is a method for correcting programs without discontinuing service that is running on a logical computer. A patch manager 109 copies programs and data under control of a logical computer 1 (105) from one disk to another disk and activates a logical computer 2 (106). The logical computer 2 (106) corrects the copied programs by using a correction program in the copied programs. Then, the patch manager 109 switches control of a network from the logical computer 1 (105) to the logical computer 2 (106) in order to switch operation from the logical computer 1 (105) to the logical computer 2 (106).
Claims10
A method for correcting programs in a computer system having a plurality of logical computers, said method comprising the steps of:
- copying programs and data under control of a first logical computer that is in operation from a first storage means assigned to said first logical computer to a second storage means;
- activating a second logical computer that has been in standby mode by using said copied programs;
- correcting said copied programs by using a correction program included in said copied program;
- switching control of a network from said first logical computer to said second logical computer;
- and
- switching operation from said first logical computer to said second logical computer that uses said corrected programs.
A program that allows a computer to implement the features of:
- copying programs and data under control of a first logical computer that is in operation in a computer system having a plurality of logical computers from a first storage means assigned to said first logical computer to a second storage means;
- activating a second logical computer that has been in standby mode by using said copied programs;
- correcting said copied programs by using a correction program included in said copied programs;
- switching control of a network from said first logical computer to said second logical computer;
- and
- switching operation from said first logical computer to said second logical computer that uses said corrected programs.
Dependencies are inferred from the claim text.