PATH MAINTENANCE MECHANISM
First Claim
1. A path management method for a storage system providing a plurality of logical units and a host computer accessing the logical units using a path, wherein the path logically includes a Host Bus Adapter (HBA) in the host computer, a storage port in the storage system, and one of the plural logical unit as components, the path management method comprising the steps of:
- storing first path information indicating components logically included in each of a first plurality of paths existing in a first time; and
storing second path information indicating components logically included in each of a second plurality of paths existing in a second time;
wherein for a certain component said path management method further comprising the steps of;
calculating a first number of a path logically including the certain component in the first time, based on the first path information,calculating a second number of a path logically including the certain component in the second time, based on the second path information, andwith emphasis, displaying an ID of the certain component, the first number, and the second number, if the first number and the second number are different.
0 Assignments
0 Petitions
Accused Products
Abstract
In the computer system including a host computer and a storage system, the storage system includes a physical disk and a disk controller, and provides a storage area of the physical disk as at least one logical unit. The processor obtains, at a first time point and a second time point different from the first time point, a relation between a logical path and a component through which the logical path passes, stores, as logical path connection information, the relations obtained at the first time point and the second time point, refers to the logical path connection information to compare the logical paths existing at the first time point and the logical paths existing at the second time point with each other, and specifies the logical path which does not exist at the second time point among the logical paths existing at the first time point.
26 Citations
15 Claims
-
1. A path management method for a storage system providing a plurality of logical units and a host computer accessing the logical units using a path, wherein the path logically includes a Host Bus Adapter (HBA) in the host computer, a storage port in the storage system, and one of the plural logical unit as components, the path management method comprising the steps of:
-
storing first path information indicating components logically included in each of a first plurality of paths existing in a first time; and storing second path information indicating components logically included in each of a second plurality of paths existing in a second time; wherein for a certain component said path management method further comprising the steps of; calculating a first number of a path logically including the certain component in the first time, based on the first path information, calculating a second number of a path logically including the certain component in the second time, based on the second path information, and with emphasis, displaying an ID of the certain component, the first number, and the second number, if the first number and the second number are different. - View Dependent Claims (2, 3, 4)
-
-
5. A computer to be configured to manage a storage system providing a plurality of logical units and a host computer accessing the plurality of logical units using a path, wherein the path logically includes a Host Bus Adapter (HBA) in the host computer, a storage port in the storage system, and one of the plurality of logical units as components, the computer comprising:
-
a memory which stores first path information indicating components logically included in each of a first plurality of paths existing in a first time, and second path information indicating components logically included in each of a second plurality of paths existing in a second time; and a processor to be configured, for a certain component, to calculate a first number of path logically including the certain component in the first time, based on the first path information, calculate a second number of path logically including the certain component in the second time, based on the second path information, and with emphasis, display an ID of the certain component, the first number and the second number, if the first number and the second number are different. - View Dependent Claims (6, 7, 8, 9, 10, 15)
-
-
11. A computer system comprising:
-
a storage system providing a plurality of logical units; a host computer accessing the plurality of logical units using a path; and a management server, wherein the path logically includes a Host Bus Adapter (HBA) in the host computer, a storage port in the storage system, and one of the plurality of logical units as components, wherein the management server is configured to store first path information indicating components logically included in each of a first plurality of paths existing in a first time, and store second path information indicating components logically included in each of a second plurality of paths existing in a second time, and wherein the management server includes a processor to be configured, for a certain component, to calculate a first number of path logically including the certain component in the first time, based on the first path information, calculate a second number of path logically including the certain component in the second time, based on the second path information, and with emphasis, display an ID of the certain component, the first number and the second number, if the first number and the second number are different. - View Dependent Claims (12, 13, 14)
-
Specification