-
1.发明专利
公开(公告)号：JP2005018757A
公开(公告)日：2005-01-20
申请号：JP2004173175
申请日：2004-06-10
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： CURRAN ROBERT J , WAYNE A SOODON , SCHMUCK FRANK B
CPC classification number: G06F11/1435 , G06F11/1469 , Y10S707/99953
Abstract: PROBLEM TO BE SOLVED: To allow both limited file access and complete file access under a file system restoration operation.
SOLUTION: File system restoration is made flexible by the use of indicators in individual file restoration statuses through the whole restoration processing. The indicators are useful, for example, in the restoration of such a large-scale file system that the number of files comes to a range of about several hundred-millions, in particular. The present invention provides various degrees of individual file accesses even when the restoration processing in the progress of execution, because the restoration of the large-scale file system requires a relatively long time. The file access is made complete or limited with respect to an attribute of the file during the file system restoration. The invention provides most advantageously the complete access driven dynamically (of on-demand) even when the file system restoration is in the course of operation.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：允许在文件系统还原操作下限制文件访问和完整文件访问。 解决方案：通过整个恢复处理，通过在单个文件恢复状态中使用指示器来灵活地进行文件系统恢复。 这些指标是有用的，例如，恢复这样一个大型文件系统，特别是文件数量达到几亿。 本发明即使在执行进行中的恢复处理由于大规模文件系统的恢复需要较长的时间而提供了各种文件访问的程度。 在文件系统恢复期间文件访问是完整的或限制文件的属性。 本发明最有利地提供了即使在文件系统恢复正在运行的过程中动态（按需）驱动的完全访问。 版权所有（C）2005，JPO＆NCIPI
-
2.发明专利
公开(公告)号：JP2005018758A
公开(公告)日：2005-01-20
申请号：JP2004173180
申请日：2004-06-10
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： CURRAN ROBERT J , MCNABB DANIEL L , MICHALAROS DEMETRIOS K , WAYNE A SOODON , SCHMUCK FRANK B , WYLLIE JAMES C
CPC classification number: G06F11/1451 , G06F11/1464 , Y10S707/99955
Abstract: PROBLEM TO BE SOLVED: To provide a method for the backup of a large file system.
SOLUTION: The backup of the file system is executed by generating at first a list of i-nodes including related i-node numbers changed after the last backup operation in order of the i-node numbers. A table having file names and the i-node numbers of all the files included in the file system in the present is also generated therein. The list is sorted by the i-node numbers, the table and the list are merged, and structure is provided thereby to determine that any of the files has to be backed up. This means that the related i-nodes and file names are provided by a single constitutional element. The structure generated based on an merge operation is suitable, in particular, for reading-out by a block unit, and backup operations are thereby executed in parallel.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供用于备份大文件系统的方法。 解决方案：文件系统的备份通过首先生成i节点的列表来执行，包括按照i节点号的顺序在上次备份操作之后改变的相关i节点编号。 还在其中生成具有文件名和包括在文件系统中的所有文件的i节点编号的表。 该列表按i节点编号排序，表和列表合并，从而提供结构，以确定任何文件必须进行备份。 这意味着相关的i节点和文件名由单个组成元素提供。 基于合并操作生成的结构特别适用于通过块单元读出，从而并行执行备份操作。 版权所有（C）2005，JPO＆NCIPI
-
公开(公告)号：JP2002229837A
公开(公告)日：2002-08-16
申请号：JP2001357196
申请日：2001-11-22
Applicant: IBM
Inventor： WANG-KNOP KUEI-YU , CURRAN ROBERT J , KANDADAI RADHA R
Abstract: PROBLEM TO BE SOLVED: To provide a method for continuing node operation in a protocol based on quorum. SOLUTION: This method wherein a group comprising especially plural nodes includes only two nodes is especially useful in the state where communication to one node is damaged. A means for adding, to each node, an additional state instruction for showing whether a single node quorum operation is enabled or not is provided. A means for dispatching one node as a first node, and dispatching the other node as a second node for the purpose of time-out response is provided.
-
公开(公告)号：DE69840904D1
公开(公告)日：2009-07-30
申请号：DE69840904
申请日：1998-06-17
Applicant: IBM
Inventor： SCHMUCK FRANK B , CURRAN ROBERT J , WYLLIE JAMES C , SHMUELI BOAZ
IPC: G06F17/30
Abstract: A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes are used for implementation of Access Control Lists in a parallel file system.
-
Patent Agency Ranking
公开(公告)号：CA2242833C
公开(公告)日：2004-09-07
申请号：CA2242833
申请日：1998-07-09
Applicant: IBM
Inventor： KANDADAI RADHA R , KISH WILLIAM A , SCHMUCK FRANK B , SHMUELI BOAZ , WYLLIE JAMES C , ZLOTEK ANTHONY J , CURRAN ROBERT J
IPC: G06F17/30 , G06F15/16 , G06F15/167
Abstract: A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel dat a sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes and attribute value sharing are used for implementation of access control lists in a parallel file system. A metadata node manages file metadata for parallel read and write actions. For our system, tokens are used for metadata node selection and identification. Enhanced token modes for controlling file size, as well as smart caching of byte range tokens using file access patterns and a byte range lock algorithm using a by te range token interface are provided. Locking techniques reduce the overhead of a token manager whic h is also used in the file system recovery if a computer participating in the management of shared disks becomes unavailable or failed. Synchronous and asynchronous takeover of a metadata node occurs for correction of metadata which was under modification. Locks are not constantl y required to allocate new blocks on behalf of a user. Recoverable local shares for quota managemen t are provided. A quota server and a quota client are provided for each file system, and a quotacheck utility allows parallel environments with minimal interference to other applications which require the use of quotas.
-
公开(公告)号：DE69840903D1
公开(公告)日：2009-07-30
申请号：DE69840903
申请日：1998-06-17
Applicant: IBM
Inventor： SCHMUCK FRANK B , CURRAN ROBERT J , SHMUELI BOAZ
IPC: G06F17/30
-
公开(公告)号：DE69838367D1
公开(公告)日：2007-10-18
申请号：DE69838367
申请日：1998-06-17
Applicant: IBM
Inventor： SCHMUCK FRANK B , KANDADAI RADHA R , ZLOTEK ANTHONY J , CURRAN ROBERT J , KISH WILLIAM A
Abstract: A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes are used for implementation of Access Control Lists in a parallel file system.
-
公开(公告)号：DE69838367T2
公开(公告)日：2008-05-29
申请号：DE69838367
申请日：1998-06-17
Applicant: IBM
Inventor： SCHMUCK FRANK B , KANDADAI RADHA R , ZLOTEK ANTHONY J , CURRAN ROBERT J , KISH WILLIAM A
Abstract: A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes are used for implementation of Access Control Lists in a parallel file system.
-
公开(公告)号：CA2242833A1
公开(公告)日：1999-01-11
申请号：CA2242833
申请日：1998-07-09
Applicant: IBM
Inventor： SCHMUCK FRANK B , ZLOTEK ANTHONY J , KANDADAI RADHA R , WYLLIE JAMES C , CURRAN ROBERT J , KISH WILLIAM A , SHMUELI BOAZ
IPC: G06F17/30 , G06F15/16 , G06F15/167
Abstract: A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sh aring access to files residing on network attached shared disks. Methods are provided for use as a par allel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multip le accesses improve the system. Extended file attributes and attribute value sharing are use d for implementation of access control lists in a parallel file system. A metadata node manages file metadata for parallel read and write actions. For our system, tokens are used for metadata node select ion and identification. Enhanced token modes for controlling file size, as well as smart caching of byte range tokens using file access patterns and a byte range lock algorithm using a byte r ange token interface are provided. Locking techniques reduce the overhead of a token manager which is also used in the file system recovery if a computer participating in the management of shared dis ks becomes unavailable or failed. Synchronous and asynchronous takeover of a metadata node occurs for correction of metadata which was under modification. Locks are not constantly re quired to allocate new blocks on behalf of a user. Recoverable local shares for quota management ar e provided. A quota server and a quota client are provided for each file system, and a quota c heck utility allows parallel environments with minimal interference to other applications which requ ire the use of quotas.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.017 seconds)
