US 2006/0053250 A1 · Storage system and data management device for storage system

Abstract

In the present invention, archive volumes are created in accordance with the size of data that is to be archived, and hence the storage regions are used in an efficient manner. The archive server acquires the data to be archived, via the application server, and detects the size of that data. The archive server issues an instruction to the storage device to cause the the storage device to generate an archive volume having a volume size corresponding to the data size of the data to be archived. The archive server writes the data to be archived to the volume having a storage capacity of the required size, and an access restriction and retention term are respectively established for the volume.

Claims20

Dependent claims

A data management device used in a storage system including a host device and a first storage device having a first logical volume used by the host device, data management device the comprising:

a data size acquiring section for acquiring the data size of prescribed data that is to be subjected to prescribed processing, of the data stored in said first logical volume;
a volume generation control section for having said first storage device generate a second logical volume of a size corresponding to said acquired data size;
and
a data processing section for storing said prescribed data in said second logical volume thus generated.

1 more element

A storage system comprising:

a host device;
a first storage device having a first logical volume used by this host device;
and a data management device, connected to said host device and second first storage device, for managing archive processing relating to data stored in said first logical volume, wherein:
(1) said data management device comprises:
(1-1) an archive management section for managing said archive processing;
(1-2) a volume generation control section for controlling the generation of second logical volumes for said archive processing, in said first storage device;
and
(1-3) a switching control section for switching and mounting a plurality of second logical volumes generated by said volume generation control section;
and wherein
(1a) said archive management section acquires data to be archived forming the object of said archive processing, from said data stored in said first logical volume, at a prescribed timing, and detects the data size of this data to be archived;
(1b) said volume generation control section causes said first storage device to generate a second logical volume having a size equal to the data size of said data to be archived as detected by said archive management section;
(1c) said switching control section mounts said second logical volume generated by said volume generation control section;
(1d) said archive management section writes the acquired data to be archived to said mounted second logical volume, and furthermore, establishes an access restriction and a retention term for the data to be archived;
(1e) said switching control section unmounts said second logical volume to which said data to be archived has been written by said archive management section;
and
(1f) said volume generation control section retains information for managing said second logical volume to which said data to be archived has been written;
and
(2) said first storage device comprises:
(2-1) a control section for performing data communications with said host device, said data management device, said first logical volume and said second logical volume;
and
(2-3) a memory section used by said control section;
wherein
(2a) said control section performs data input and output to and from said first logical volume, in response to an access request from the host device;
(2b) said control section generates said second logical volume in accordance with an instruction from said volume generation control section;
(2c) said control section causes said data management device to recognize or cease to recognize said second logical volume, in accordance with an instruction from said switching control section;
(2d) said control section writes said data to be archived input from said archive management section, to said second logical volume, and establishes said access restriction and said retention term requested by said archive management section in said second logical volume;
and
(2e) said control section manages the progress of said established retention term in such a manner that the storage contents of said second logical volume are retained during the time period in which the retention term is valid.

25 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/975,449Filed 29 Oct 2004

Priority

JP 2004-2565363 Sep 2004

Published

9 Mar 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 3/0665
Virtualisation aspects: at area level, e.g. provisioning of virtual or logical volumes
G06F 3/0608
Specifically adapted to achieve a particular effect: saving storage space on storage systems
G06F 3/067
Adopting a particular infrastructure: distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
G06F 3/065
Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems: replication mechanisms

Storage system and data management device for storage system

Life of this patent

Storage system and data management device for storage system

Life of this patent

Abstract

Claims20