公开(公告)号：JP2002091938A

公开(公告)日：2002-03-29

申请号：JP2001206005

申请日：2001-07-06

Applicant: IBM

Inventor： BOLIK CHRISTIAN ,  GEMSJAEGER PETER ,  SCHROIFF KLAUS

IPC: G06F15/16 ,  G06F11/00 ,  G06F11/20 ,  G06F15/177

Abstract: PROBLEM TO BE SOLVED: To provide a mechanism for processing the fail-over of a data management application about a shared disk file system in a distributed computing environment having a cluster of loosely coupled nodes providing a service. SOLUTION: According to this mechanism, given nodes of the cluster is defined as a fail-over candidate node. Configuration information about all of the fail-over candidate nodes is preferably stored in a central storage region. Message information that includes the failure information of at least one fail- over candidate node and is not defined by the failure information is distributed between fail-over candidate nodes. The fail-over candidate nodes decide whether to succeed the service of a failed node by analyzing the distributed message information and the stored configuration information. The fail-over candidate nodes succeed the service and the configuration information is subsequently updated in the central storage region.

公开(公告)号：AT361500T

公开(公告)日：2007-05-15

申请号：AT01127909

申请日：2001-11-23

Applicant: IBM

Inventor： BOLIK CHRISTIAN ,  GEMSJAEGER PETER ,  SCHROIFF KLAUS

IPC: G06F17/30

Abstract: Disclosed is a mechanism of managing an hierarchical storage management (HSM) system including an HSM server and a file server having a managed file system where the HSM server and the file server are interconnected via a network. Migration of data files from the file server to the HSM server is accomplished by providing at least one list for identifying candidate files to be migrated, scanning the managed file system until having detected a prespecified number of migration candidate files, recording the detected migration candidate files in the provided at least one list of candidate files, monitoring a current state of the managed file system, and migrating at least part of the candidate files identified in the at least one list of candidate files from the file server to the HSM server, dependent on the monitored current state of the managed file system. In parallel, the migrated data files can be identified by a unique identifier that allows direct access to the migrated files. The mechanism enables an efficient handling of large amounts of file based information in the HSM environment by way of an automigration process and is highly scalable with respect to the amount of file based information.

公开(公告)号：DE60128200D1

公开(公告)日：2007-06-14

申请号：DE60128200

申请日：2001-11-23

Applicant: IBM

Inventor： BOLIK CHRISTIAN ,  GEMSJAEGER PETER ,  SCHROIFF KLAUS

IPC: G06F17/30

Abstract: Disclosed is a mechanism of managing an hierarchical storage management (HSM) system including an HSM server and a file server having a managed file system where the HSM server and the file server are interconnected via a network. Migration of data files from the file server to the HSM server is accomplished by providing at least one list for identifying candidate files to be migrated, scanning the managed file system until having detected a prespecified number of migration candidate files, recording the detected migration candidate files in the provided at least one list of candidate files, monitoring a current state of the managed file system, and migrating at least part of the candidate files identified in the at least one list of candidate files from the file server to the HSM server, dependent on the monitored current state of the managed file system. In parallel, the migrated data files can be identified by a unique identifier that allows direct access to the migrated files. The mechanism enables an efficient handling of large amounts of file based information in the HSM environment by way of an automigration process and is highly scalable with respect to the amount of file based information.

公开(公告)号：DE10134492B4

公开(公告)日：2006-02-09

申请号：DE10134492

申请日：2001-07-10

Applicant: IBM

Inventor： BOLIK CHRISTIAN ,  GEMSJAEGER PETER ,  SCHROIFF KLAUS

IPC: G06F15/16 ,  G06F11/00 ,  G06F11/14 ,  G06F11/20 ,  G06F17/30

Abstract: Disclosed is a mechanism for handling failover of a data management application for a shared disk file system in a distributed computing environment having a cluster of loosely coupled nodes which provide services. According to the mechanism, certain nodes of the cluster are defined as failover candidate nodes. Configuration information for all the failover candidate nodes is stored preferably in a central storage. Message information including but not limited to failure information of at least one failover candidate node is distributed amongst the failover candidate nodes. By analyzing the distributed message information and the stored configuration information it is determined whether to take over the service of a failure node by a failover candidate node or not. After a take-over of a service by a failover candidate node the configuration information is updated in the central storage.

公开(公告)号：DE60128200T2

公开(公告)日：2008-01-24

申请号：DE60128200

申请日：2001-11-23

Applicant: IBM

Inventor： BOLIK CHRISTIAN ,  GEMSJAEGER PETER ,  SCHROIFF KLAUS

IPC: G06F17/30

Abstract: Disclosed is a mechanism of managing an hierarchical storage management (HSM) system including an HSM server and a file server having a managed file system where the HSM server and the file server are interconnected via a network. Migration of data files from the file server to the HSM server is accomplished by providing at least one list for identifying candidate files to be migrated, scanning the managed file system until having detected a prespecified number of migration candidate files, recording the detected migration candidate files in the provided at least one list of candidate files, monitoring a current state of the managed file system, and migrating at least part of the candidate files identified in the at least one list of candidate files from the file server to the HSM server, dependent on the monitored current state of the managed file system. In parallel, the migrated data files can be identified by a unique identifier that allows direct access to the migrated files. The mechanism enables an efficient handling of large amounts of file based information in the HSM environment by way of an automigration process and is highly scalable with respect to the amount of file based information.

公开(公告)号：DE10134492A1

公开(公告)日：2002-02-21

申请号：DE10134492

申请日：2001-07-10

Applicant: IBM

Inventor： BOLIK CHRISTIAN ,  GEMSJAEGER PETER ,  SCHROIFF KLAUS

IPC: G06F15/16 ,  G06F11/00 ,  G06F11/20 ,  G06F11/14 ,  G06F17/30

Abstract: The data management system uses a group of nodes (200) Some nodes (2) serve a parallel data system and others (1,3) provided service to these. Other nodes (4) use common data .The group connects with group data register (210) and a group service (220)