Backup system and method thereof in disk shared file system
AssigneeFujitsu Limited
InventorsYoshihiro Tsuchiya, Yoshitake Shinkai
Life of this patent
Estimating the term…
Abstract
At the time of a backup process of the sharing disk in a disk shared file system, the write cache of each computer is reflected on a sharing disk, and data of the sharing disk is copied in a backup medium as a batch. Further, blocks to be backed up are listed to be copied in the backup medium as a batch. Then, the log of each computer is stored in a log medium, and the data at the start point of a backup process is formed using the log.
Claims43
A backup system for backing up a shared medium shared by a plurality of computers, comprising:
- a copy device copying a plurality of unit areas of the sharing medium in the backup medium as a batch;
- and
- a control device managing write data that each of the plurality of computers writes in the sharing medium and reflecting the write data of each computer on the sharing medium at a time of a backup process.
A backup system for backing up a sharing medium shared by a plurality of computers, comprising:
- a log management device, when any of the plurality of computers accesses the sharing medium, managing original data before an access occurs as a log, and forming an entire log by gathering logs of two or more computers;
- and
- a formation device forming data at a backup start point using the entire log.
A backup system for backing up a sharing medium shared by a plurality of computers:
- a group management device setting a group of files stored in the sharing medium and listing unit areas occupied by files included in the group;
- and
- a copy device copying the plurality of listed unit areas in the backup medium as a batch.
A backup system for backing up a storage medium storing files to be accessed by a computer, comprising:
- an area management device determining whether a unit area is used for each unit area of the storage medium and listing a plurality of used unit areas;
- and
- a copy device copying the listed unit areas in the backup medium as a batch.
A backup system for backing up a storage medium storing files accessed by a computer, comprising:
- an area management device listing a plurality of unit areas changed after a previous backup process among unit areas of the storage medium, as a difference;
- and
- a copy device copying the listed unit areas in the backup medium as a batch, as incremental backup data.
A computer-readable recording medium recording a program for a computer to back up a sharing medium shared by a plurality of computers, the program enabling the computer to perform:
- managing write data that each of the plurality of computers writes in the sharing medium;
- reflecting write data of each computer on the sharing medium at a backup process;
- and
- copying a plurality of unit areas of the sharing medium in a backup medium as a batch.
A computer-readable recording medium recording a program for a computer to back up a sharing medium shared by a plurality of computers, the program enabling the computer to perform:
- managing, when any of the plurality of computers accesses the sharing medium, original data before an access occurs as a log,
- forming an entire log by gathering logs of two or more computers;
- and
- forming data at a backup start point using the entire log.
A computer-readable recording medium recording a program for a computer to back up a sharing medium shared by a plurality of computers, the program enabling the computer to perform:
- setting a group of files stored in the sharing medium;
- listing a plurality of unit areas occupied by files included in the group;
- and
- copying the listed unit areas in the backup medium as a batch.
A computer-readable recording medium recording a program for a backup computer to back up a storage medium accessed by a computer, the program enabling the backup computer to perform:
- determining whether a unit area is used for each unit area of the storage medium;
- listing a plurality of used unit areas;
- and
- copying the listed unit areas in the backup medium as a batch.
A computer readable record medium recording a program for a backup computer to back up a storage medium accessed by a computer, the program enabling the backup computer to perform:
- listing a plurality of unit areas changed after a previous backup process among unit areas of the storage medium, as a difference;
- and
- copying the listed unit areas in the backup medium as a batch, as incremental backup data.
A backup method for backing up a sharing medium shared by a plurality of computers, comprising:
- managing write data which each of the plurality of computers writes in the sharing medium;
- reflecting write data of each computer on the sharing medium at a backup process;
- and
- copying a plurality of unit areas of the sharing medium in a backup medium as a batch.
A backup method for backing up a sharing medium shared by a plurality of computers, comprising:
- managing, when any of the plurality of computers accesses the sharing medium, original data before an access occurs as a log;
- forming an entire log by gathering logs of two or more computers;
- and
- forming data at a backup start point using the entire log.
A backup method for backing up a sharing medium shared by a plurality of computers, comprising:
- setting a group of files stored in the sharing medium;
- listing a plurality of unit areas occupied by files included in the group;
- and
- copying the listed unit areas in the backup medium as a batch.
A backup method for backing up a storage medium accessed by a computer, comprising:
- determining whether a unit area is used for each unit area of the storage medium;
- listing a plurality of used unit areas;
- and
- copying the listed unit areas in the backup medium as a batch.
A backup method for backing up a storage medium accessed by a computer, comprising:
- listing a plurality of unit areas changed after a previous backup process among unit areas of the storage medium, as a difference;
- and
- copying the listed unit areas in the backup medium as a batch, as incremental backup data.
A backup system for backing up a sharing medium shared by a plurality of computers, comprising:
- copy means for copying a plurality of unit areas of the sharing medium in a backup medium as a batch;
- and
- control means for managing write data which each of the plurality of computers writes in the sharing medium and reflecting write data of each computer on the sharing medium at a time of a backup process.
A backup system for backing up a sharing medium shared by a plurality of computers, comprising:
- log management means for managing, when any of the plurality of computers accesses the sharing medium, original data before an access occurs as a log and forming an entire log by gathering logs of two or more computers;
- and
- formation means for forming data at a start point of a backup process using the entire log.
A backup system for backing up a sharing medium shared by a plurality of computers, comprising:
- group management means for setting a group of files stored in the sharing medium and listing a plurality of unit areas occupied by files included in the group;
- and
- copy means for copying the listed unit areas in the backup medium as a batch.
A backup system for backing up a storage medium storing files accessed by a computer, comprising:
- area management means for determining whether a unit area is used for each unit area of the storage medium and listing a plurality of used unit areas;
- and
- a copy means for copying the listed unit areas in the backup medium as a batch.
A backup system for backing up a storage medium for storing files accessed by a computer, comprising:
- area management means for listing a plurality of unit areas changed after a previous backup process among unit areas of the storage medium, as a difference;
- and
- copy means for copying the listed unit areas in the backup medium as a batch, as incremental backup data.
A propagation signal for propagating a program to a computer, the program enabling the computer to perform:
- managing write data that each of the plurality of computers writes in the sharing medium;
- reflecting write data of each computer on the sharing medium at a backup process;
- and
- copying a plurality of unit areas of the sharing medium in a backup medium as a batch.
A propagation signal for propagating a program to a computer to back up a sharing medium shared by a plurality of computers, the program enabling the computer to perform:
- managing, when any of the plurality of computers accesses the sharing medium, original data before an access occurs as a log,
- forming an entire log by gathering logs of two or more computers;
- and
- forming data at a backup start point using the entire log.
A propagation signal for propagating a program to a computer to back up a sharing medium shared by a plurality of computers, the program enabling the computer to perform:
- setting a group of files stored in the sharing medium;
- listing a plurality of unit areas occupied by files included in the group;
- and
- copying the listed unit areas in the backup medium as a batch.
A propagation signal for propagating a program to a backup computer to back up a storage medium accessed by a computer, the program enabling the backup computer to perform:
- determining whether a unit area is used for each unit area of the storage medium;
- listing a plurality of used unit areas;
- and
- copying the listed unit areas in the backup medium as a batch.
A propagation signal for propagating a program to a backup computer to back up a storage medium accessed by a computer, the program enabling the backup computer to perform:
- listing a plurality of unit areas changed after a previous backup process among unit areas of the storage medium, as a difference;
- and
- copying the listed unit areas in the backup medium as a batch, as incremental backup data.
Dependencies are inferred from the claim text.