US 2016/0239230 A1 · STORAGE SYSTEM AND METHOD FOR CONTROLLING STORAGE SYSTEM

Abstract

The present invention provides a storage system 1 comprising a host interface for receiving I/O requests from a host via a SAN, and a management interface for receiving network packets from a management terminal or other devices within a management network. The storage system analyzes the characteristics of I/O requests from the host, and changes a filter level based on the characteristics of the I/O requests. Further, the storage system executes control to increase the number of types of network packets to be abandoned out of the network packets arriving at the management interface when the filter level is high, and to reduce the number of types of network packets to be abandoned when the filter level is low, so as to prevent the processing of network packets arriving at the management interface from affecting the I/O performance of the host.

Claims15

Dependent claims

A storage system comprising a processor, one or more storage areas, a host interface for communicating with a host computer, and a management interface for connecting with a management network:

wherein
the processor is configured to concurrently perform processing of an access request to the storage area from the host computer and processing of a network packet arriving via the management network, and receiving a network packet from one or more external devices arriving via the management network, identifying a type of the network packet, and abandoning a predetermined type of packets;
the storage system receives an access request from the host computer to the storage area, and monitors an access characteristics of the host computer to the storage area;
and
based on the access characteristics, the storage system changes a filter level which is a number of the types of network packets to be abandoned.

2 more elements

A method for controlling a storage system comprising a processor, one or more storage areas, a host interface for communicating with a host computer, and a management interface for connecting with a management network:

wherein
the processor is configured to concurrently perform processing of an access request to the storage area from the host computer and processing of a network packet arriving via the management network, and receiving a network packet from one or more external devices arriving via the management network, identifying a type of the network packet, and abandoning a predetermined type of packets;
the storage system receives an access request from the host computer to the storage area, and monitors an access characteristics of the host computer to the storage area;
and
based on the access characteristics, the storage system changes a filter level which is a number of the types of network packets to be abandoned.

2 more elements

Dependencies are inferred from the claim text.

Storage system and method for controlling storage system

Life of this patent

Storage system and method for controlling storage system

Life of this patent

Abstract

Claims15