STORAGE APPARATUS AND METHOD FOR CONTROLLING SAME
First Claim
1. A storage apparatus which provides a host computer with one or more storage areas which are storage areas for reading and writing data and which reads and writes data to the corresponding storage areas on the basis of commands supplied from the host computer,the storage apparatus comprising:
- a management unit which manages the number of commands that can be received; and
a storage unit which stores preconfigured management modes for managing the number of commands that can be received,wherein the management modes comprise at least one management mode among a first management mode for managing the number of receivable commands for each of the storage areas, a second management mode for managing the number of receivable commands in host group units which are sets of one or more of the host computers, and a third management mode for managing the number of receivable commands in identification information units assigned to the logged on host computers,wherein the management unit manages the number of receivable commands supplied from the host computer according to the management modes stored in the storage unit.
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Accused Products
Abstract
Proposed are a storage apparatus and a method of controlling same which make it possible to prevent deterioration in the response performance of the whole system effectively and in advance.
A storage apparatus which provides a host computer with one or more storage areas which are storage areas for reading and writing data and which reads and writes data to the corresponding storage areas on the basis of commands supplied from the host computer, wherein the number of receivable commands supplied from the host computer is managed according to preconfigured management modes for managing the number of receivable commands, wherein the management modes comprise at least one management mode among a first management mode for managing the number of receivable commands for each of the storage areas, a second management mode for managing the number of receivable commands in host group units which are sets of one or more of the host computers, and a third management mode for managing the number of receivable commands in identification information units assigned to the logged on host computers.
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Citations
12 Claims
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1. A storage apparatus which provides a host computer with one or more storage areas which are storage areas for reading and writing data and which reads and writes data to the corresponding storage areas on the basis of commands supplied from the host computer,
the storage apparatus comprising: -
a management unit which manages the number of commands that can be received; and a storage unit which stores preconfigured management modes for managing the number of commands that can be received, wherein the management modes comprise at least one management mode among a first management mode for managing the number of receivable commands for each of the storage areas, a second management mode for managing the number of receivable commands in host group units which are sets of one or more of the host computers, and a third management mode for managing the number of receivable commands in identification information units assigned to the logged on host computers, wherein the management unit manages the number of receivable commands supplied from the host computer according to the management modes stored in the storage unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling a storage apparatus which provides a host computer with one or more storage areas which are storage areas for reading and writing data and which reads and writes data to the corresponding storage areas on the basis of commands supplied from the host computer,
the method comprising: -
a first step of storing preconfigured management modes for managing the number of commands that can be received; and a second step of managing the number of receivable commands supplied from the host computer according to the management modes stored in the storage unit, wherein the management modes comprise at least one management mode among a first management mode for managing the number of receivable commands for each of the storage areas, a second management mode for managing the number of receivable commands in host group units which are sets of one or more of the host computers, and a third management mode for managing the number of receivable commands in identification information units assigned to the logged on host computers. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification