INFORMATION PROCESSING SYSTEM AND METHOD OF ACQUIRING BACKUP IN AN INFORMATION PROCESSING SYSTEM
First Claim
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1. An information processing system comprising:
- a plurality of nodes coupled with a client,a plurality of storages coupled subordinately to the respective nodes,a backup node coupled with each of the nodes, anda backup storage coupled subordinately to the backup node,wherein each of the nodes synchronizes and holds location information as information showing a location of a file stored in each of the storages;
wherein each of the nodes functions as a virtual file system that provides the client with storage regions of the storages as a single namespace; and
wherein the backup node stores, as a replica of the file, a backup file in the backup storage by synchronizing and holding the location information held by each of the nodes, and acquiring the file by accessing the location identified by the location information synchronized and held by the backup node itself.
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Abstract
Provided is an information processing system including a plurality of nodes 3 and a plurality of storages 4 coupled subordinately to each of the nodes 3, each of the nodes 3 functioning as a virtual file system that provides a client 2 with storage regions of each of the storages 4 as a single namespace. This information processing system is further provided with a backup node 10 and a backup storage 11 coupled subordinately to the backup node 10. The backup node 10 synchronizes and holds location information (file management table 33) held by each of the nodes 3. Then, the backup node 10 creates a backup file, and stores the backup file in the backup storage 11 by accessing a location identified by the location information (file management table 43) synchronized and held by the backup node 10 itself to acquire a file.
262 Citations
10 Claims
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1. An information processing system comprising:
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a plurality of nodes coupled with a client, a plurality of storages coupled subordinately to the respective nodes, a backup node coupled with each of the nodes, and a backup storage coupled subordinately to the backup node, wherein each of the nodes synchronizes and holds location information as information showing a location of a file stored in each of the storages; wherein each of the nodes functions as a virtual file system that provides the client with storage regions of the storages as a single namespace; and wherein the backup node stores, as a replica of the file, a backup file in the backup storage by synchronizing and holding the location information held by each of the nodes, and acquiring the file by accessing the location identified by the location information synchronized and held by the backup node itself. - View Dependent Claims (2, 3, 4, 5)
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6. A method for acquiring a backup in an information processing system including
a plurality of nodes coupled with a client, a plurality of storages coupled subordinately to the respective nodes, a backup node coupled with each of the nodes, and a backup storage coupled subordinately to the backup node, wherein each of the nodes synchronizes and holds location information as information showing a location of a file stored in each of the storages, each of the nodes function as a virtual file system which provides the client with storage regions of the storages as a single namespace, the method comprising: a step performed by the backup node of storing, as a replica of the file, a backup file in the backup storage by synchronizing and holding the location information held by each of the nodes, and acquiring the file by accessing the location identified by the location information synchronized and held by the backup node itself. - View Dependent Claims (7, 8, 9, 10)
Specification
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Current AssigneeHitachi, Ltd.
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Original AssigneeHitachi, Ltd.
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InventorsHamaguchi, Masaki, Harada, Akitatsu, Achiwa, Kyosuke
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Application NumberUS12/307,992Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current707/640CPC Class CodesG06F 11/1451 by selection of backup cont...G06F 11/1456 Hardware arrangements for b...G06F 11/1461 Backup scheduling policyG06F 11/1464 for networked environmentsG06F 11/1466 to make the backup process ...G06F 11/1469 Backup restoration techniquesG06F 11/2061 combined with de-clustering...G06F 11/2097 maintaining the standby con...G06F 2201/815 Virtual middleware or OS fu...
