STORAGE SYSTEM FOR MANAGING A LOG OF ACCESS
First Claim
1. A storage system comprising:
- a plurality of first interfaces, each of the plurality of first interfaces being coupled to a host computer;
a plurality of second interfaces, each of the plurality of second interfaces being coupled to a manager terminal;
a plurality of control units, each of the plurality of control units being coupled to at least one of the first interfaces and at least one of the second interfaces,wherein each of the plurality of control units includes a processor and a cache memory; and
a plurality of storage units,wherein data that is requested to be read by the host computer is stored in the plurality of storage units, andwherein the plurality of storage units includes a plurality of log storage areas, each of the plurality of log storage areas storing a different type of log data generated by the plurality of control units.
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Accused Products
Abstract
Provided is a storage system including: a first interface connected to a host computer; a second interface connected to a manager terminal; a control unit connected to the first interface and the second interface and equipping a processor and a memory; and one or more disk drives in which data that is requested to read by the host computer is stored, in which the control unit detects an access from the host computer to the first interface and an access from the manager terminal to the second interface, and generates log data of operations according to the accesses. Accordingly, log data concerning every action and every operation of the storage system is maintained and stored.
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Citations
18 Claims
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1. A storage system comprising:
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a plurality of first interfaces, each of the plurality of first interfaces being coupled to a host computer; a plurality of second interfaces, each of the plurality of second interfaces being coupled to a manager terminal; a plurality of control units, each of the plurality of control units being coupled to at least one of the first interfaces and at least one of the second interfaces, wherein each of the plurality of control units includes a processor and a cache memory; and a plurality of storage units, wherein data that is requested to be read by the host computer is stored in the plurality of storage units, and wherein the plurality of storage units includes a plurality of log storage areas, each of the plurality of log storage areas storing a different type of log data generated by the plurality of control units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for managing a log of access in a storage system, the storage system including a plurality of first interfaces, each of the plurality of first interfaces being coupled to a host computer, a plurality of second interfaces, each of the plurality of second interfaces being coupled to a manager terminal, a plurality of control units, each of the plurality of control units being coupled to at least one of the first interfaces and at least one of the second interfaces, each of the plurality of control units including a processor and a cache memory, and a plurality of storage units, the plurality of storage units including a plurality of log storage areas, the method comprising:
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storing, in the plurality of storage units, data that is requested to be read by the host computer; and storing, in each of the plurality of log storage areas, a different type of log data generated by the plurality of control units. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification