| Patent application number | Description | Published |
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| 20080235350 | ROOT NODE FOR FILE LEVEL VIRTUALIZATION - A root node creates and issues an object ID comprising share information designating a share unit, which is a logical public unit. The share unit is a logical public unit comprising no less than two objects. Transfer control information in which share information is associated with device information showing a device for managing this share unit, is prepared for each share unit. The root node receives request data, which has an object ID comprising share information, specifies device information corresponding to the share information in this object ID from the transfer control information, and transfers the request data to the device indicated in this device information. | 09-25-2008 |
| 20080263222 | COMPUTER SYSTEM, ROOT NODE, AND LOG MANAGEMENT METHOD FOR ACCESS PATH CONVERSION - A computer system including a storage system, a host computer system, a path configuration unit that associates a local path with a global path, an access path conversion unit that converts a global path into a local path associated, by the path configuration unit, with the global path used in the file access, and forwards the converted file access to the storage system, an access log reception unit that receives an access log from the storage system, an access log conversion unit that converts the local path used in the access log received by the access log reception unit, into a global path associated, by the path configuration unit, with the local path used in the received access log, and an access log display unit that displays the converted access log. | 10-23-2008 |
| 20080263277 | Storage device - A storage device is provided with a file I/O interface control device and a plurality of disk pools. The file I/O interface control device sets one of a plurality of storage hierarchies defining storage classes, respectively, for each of LUs within the disk pools, thereby forming a file system in each of the LUs. The file I/O interface control device migrates at least one of the files from one of the LUs to another one of the LUs of an optimal storage class, based on static properties and dynamic properties of each file. | 10-23-2008 |
| 20080294704 | INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD - Providing an information processing apparatus and information processing method that prevent the occurrence of inconsistencies between restored files and other files, thereby improving ease of use. When restoring a backup virtual tree, the owner of each file and directory belonging to the backup virtual tree is identified; and when it is found, based on the identification result, that the owner of any of the files or directories is not a target user and the update time and/or version of the backup file or directory is older than that of the corresponding present file or directory, the backup file or directory is restored back into a special directory accessible for the target user with the tree structure of the original virtual tree intact. | 11-27-2008 |
| 20090144290 | NETWORK STORAGE SYSTEM WITH A CLUSTERED CONFIGURATION SHARING A NAMESPACE, AND CONTROL METHOD THEREFOR - Provided is a storage system as follows. A server holds a management table that serves to manage a mount point of a file system. The management table stores a file system identifier that uniquely identifies the file system within the storage system, mount point information that indicates the mount point of the file system, and a management server identifier that indicates an identifier of the server that manages the file system. The contents stored in the management table of each server are the same. Upon reception of a request to obtain a file handle, each server returns the file handle requested to be obtained. The file handle indicates, uniquely within the storage system, the storage area on the disk subsystem in which the file relating to the request is stored. | 06-04-2009 |
| 20090287887 | Storage system and method of managing a storage system using a management apparatus - A storage system has NAS apparatuses each including virtual file servers to be provided to host apparatuses, a storage apparatus including logical units, and a management apparatus for managing the NAS apparatuses and the storage apparatus. The management apparatus requests the NAS apparatuses and the storage apparatus to transfer management information, acquires the management information. The management apparatus then creates system performance information concerning the virtual file servers based on the acquired management information to display the created system performance information on a user interface. | 11-19-2009 |
| 20110078220 | FILESYSTEM BUILDING METHOD - Network arrangements wherein a network interface receives write requests of files of a file system from a client computer, each file including respective data and respective metadata. A processor registers the metadata of a file to at least one first type storage medium and writes the data of the file to the at least one second type storage medium based on file value information. The storage system stores information of address ranges of an integrated logical unit, in which each address range corresponds to the at least one first type storage medium and the at least one second type storage medium included in the integrated logical unit, and provides the information of address ranges of the integrated logical unit to the client computer. | 03-31-2011 |
| 20110185123 | STORAGE DEVICE - A storage device is provided with a file I/O interface control device and a plurality of disk pools. The file I/O interface control device sets one of a plurality of storage hierarchies defining storage classes, respectively, for each of LUs within the disk pools, thereby forming a file system in each of the LUs. The file I/O interface control device migrates at least one of the files from one of the LUs to another one of the LUs of an optimal storage class, based on static properties and dynamic properties of each file. | 07-28-2011 |
| 20120084529 | ARRANGEMENTS FOR MANAGING METADATA OF AN INTEGRATED LOGICAL UNIT INCLUDING DIFFERING TYPES OF STORAGE MEDIA - A file system including: a first type storage medium; a second type storage medium; and a processor providing a file system using a first area in the first type storage medium and a second area in the second type storage medium, wherein the processor manages whether metadata is permitted to be stored in each of the first area and second area, stores a first file and first metadata of the first file in the first area, which is managed to permit storing metadata, migrates the first file stored in the file system to the second area, which is managed not to permit storing metadata, and changes the first metadata stored in the first area to point to a location of the first file in the second area. | 04-05-2012 |
| 20120102011 | Storage System and Method of Managing a Storage System Using a Management Apparatus - A storage system has NAS apparatuses each including virtual file servers to be provided to host apparatuses, a storage apparatus including logical units, and a management apparatus for managing the NAS apparatuses and the storage apparatus. The management apparatus requests the NAS apparatuses and the storage apparatus to transfer management information, acquires the management information. The management apparatus then creates system performance information concerning the virtual file servers based on the acquired management information to display the created system performance information on a user interface. | 04-26-2012 |
| Patent application number | Description | Published |
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| 20100106688 | COMPUTER SYSTEM STORAGE DEVICE AND DATE UPDATING METHOD - Data stored in a plurality of snapshots that can be updated is efficiently updated. | 04-29-2010 |
| 20110289331 | STORAGE SYSTEM AND ITS INFORMATION PROCESSING METHOD - Returning a response to a host system in a range which does not cause time-out by the host system even if a disk device in a power saving status is an access target of the host system. A NAS controller determines an access request from a client terminal, outputs a command for spinning up a disk device in a spin off status to a disk controller if the access target includes shared folders corresponding with the disk devices in the spin off status, sends response information to the client terminal to the effect that processing for connection with the shared folder as the access target is being performed in response to the access request, and inhibits the client terminal from shifting to the time-out processing. | 11-24-2011 |
| 20120060154 | COMPUTER SYSTEM, STORAGE DEVICE AND DATE UPDATING METHOD - Computer system including: a computer with first processor managing first and second virtual computers; and a storage system with second processor providing first and second virtual volumes to the virtual computers, an original data volume shared by the virtual volumes, and a differential data volume storing first and second differential data of the virtual volumes; wherein if receiving a first request to update a first data stored in a first virtual area of the first virtual volume, the first processor requests storage of the first data in a first area of the original data volume, corresponding to the first virtual area, wherein if receiving a second request to update a second data stored in a second virtual area of the first virtual volume, the first processor requests storage of the second data in a second area of the differential data volume, corresponding to the second virtual area. | 03-08-2012 |
| 20120254513 | STORAGE SYSTEM AND DATA CONTROL METHOD THEREFOR - A storage system having multiple flash memory packages including flash memory chips and package controllers for controlling access to the flash memory chips is configured such that the package controller receives from a higher-level apparatus, which sends a write request, frequency prediction information that enables prediction of an update frequency with respect to data, which is to be a write target, and when writing data for which a write request has been issued from the higher-level apparatus, control is executed such that data, which is predicted to have a relatively high update frequency based on the frequency prediction information, is preferentially stored in a physical block with the large remaining number of erases in a flash memory chip of flash memory package of the package controller, or such that data, which is predicted to have a relatively low update frequency based on the frequency prediction information, is preferentially stored in a physical block with the small remaining number of erases in a flash memory chip of the flash memory package of the package controller. | 10-04-2012 |
