US 2018/0004447 A1Published application

Storage system

AssigneeHitachi, Ltd.

InventorsYoshinori OOHIRA, Nobuhiro MAKI, Wataru OKADA, Tadashi TAKEUCHI, Sachie TAJIMA

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Abstract

The storage system is capable of creating one or more virtual storage subsystems to which virtual resources having logically divided a processing capacity of the physical resources are allocated, and upon creating a virtual volume for receiving I/O requests from the host within the virtual storage subsystem, the virtual storage subsystem allocates the virtual resource to the virtual volume, and when an I/O request to the virtual volume is received from the host, performs processing related to the I/O request using the virtual resource having been allocated. According further to the storage system, after allocating the virtual resource to the virtual volume, the storage system raises a utilization rate of the virtual resource allocated to the virtual volume in a stepwise manner.

Claims10

Dependent claims

A storage system comprising a storage controller having multiple types of physical resources used for processing I/O requests from a host, and a media resource for storing data;

the multiple types of physical resources including, at least, a processor resource, a memory resource, and a port resource connected to the host;
the storage system being configured to be able to create one or more virtual storage subsystems to which virtual resources having logically divided a processing capacity of the physical resources are allocated;
wherein when the virtual storage subsystem creates a virtual volume for receiving I/O requests from the host within the virtual storage subsystem, the virtual storage subsystem allocates the virtual resource to the virtual volume,
when the virtual storage subsystem receives an I/O request to the virtual volume from the host, the virtual storage subsystem performs processing related to the I/O request using the virtual resource having been allocated;
and wherein
after allocating the virtual resource to the virtual volume, the storage system raises a utilization rate of the virtual resource allocated to the virtual volume in a stepwise manner.

3 more elements

A method for controlling a storage system comprising a storage controller having multiple types of physical resources used for processing I/O requests from a host, and a media resource for storing data;

the multiple types of physical resources including, at least, a processor resource, a memory resource, and a port resource connected to the host;
the storage system being configured to be able to create one or more virtual storage subsystems to which virtual resources having logically divided a processing capacity of the physical resources are allocated;
the storage system comprising the steps of
1) upon creating a virtual volume for receiving I/O requests from the host within the virtual storage subsystem, allocating the virtual resource to the virtual volume, and when an I/O request to the virtual volume is received from the host, performing processing related to the I/O request using the virtual resource having been allocated;
and
2) after allocating the virtual resource to the virtual volume, raising a utilization rate of the virtual resource allocated to the virtual volume in a stepwise manner.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/543,308Filed 29 Jan 2015
Published: 4 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G06F 3/0631
Configuration or reconfiguration of storage systems: by allocating resources to storage systems
G06F 3/0604
Specifically adapted to achieve a particular effect: improving or facilitating administration, e.g. storage management
G06F 3/0605
Improving or facilitating administration, e.g. storage management: by facilitating the interaction with a user or administrator
G06F 3/0665
Virtualisation aspects: at area level, e.g. provisioning of virtual or logical volumes