Checkpointing filesystem
Abstract
The present in invention is directed to a checkpointing filesystem of a distributed-memory parallel supercomputer comprising a node that accesses user data on the filesystem, the filesystem comprising an interface that is associated with a disk for storing the user data. The checkpointing filesystem provides for taking and checkpoint of the filesystem and rolling back to a previously taken checkpoint, as well as for writing user data to and deleting user data from the checkpointing filesystem. The checkpointing filesystem provides a recently written file allocation table (WFAT) for maintaining information regarding the user data written since a previously taken checkpoint and a recently deleted file allocation table (DFAT) for maintaining information regarding user data deleted from since the previously taken checkpoint, both of which are utilized by the checkpointing filesystem to take a checkpoint of the filesystem and rollback the filesystem to a previously taken checkpoint, as well as to write and delete user data from the checkpointing filesystem.
- Inventors:
-
- Mount Kisco, NY
- Irvington, NY
- Issue Date:
- Research Org.:
- International Business Machines Corp., Armonk, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 949193
- Patent Number(s):
- 6895416
- Application Number:
- 10/258,515
- Assignee:
- International Business Machines Corporation (Armonk, NY)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
F - MECHANICAL ENGINEERING F24 - HEATING F24F - AIR-CONDITIONING
- DOE Contract Number:
- B517552
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Gara, Alan G, Giampapa, Mark E, and Steinmacher-Burow, Burkhard D. Checkpointing filesystem. United States: N. p., 2005.
Web.
Gara, Alan G, Giampapa, Mark E, & Steinmacher-Burow, Burkhard D. Checkpointing filesystem. United States.
Gara, Alan G, Giampapa, Mark E, and Steinmacher-Burow, Burkhard D. Tue .
"Checkpointing filesystem". United States. https://www.osti.gov/servlets/purl/949193.
@article{osti_949193,
title = {Checkpointing filesystem},
author = {Gara, Alan G and Giampapa, Mark E and Steinmacher-Burow, Burkhard D},
abstractNote = {The present in invention is directed to a checkpointing filesystem of a distributed-memory parallel supercomputer comprising a node that accesses user data on the filesystem, the filesystem comprising an interface that is associated with a disk for storing the user data. The checkpointing filesystem provides for taking and checkpoint of the filesystem and rolling back to a previously taken checkpoint, as well as for writing user data to and deleting user data from the checkpointing filesystem. The checkpointing filesystem provides a recently written file allocation table (WFAT) for maintaining information regarding the user data written since a previously taken checkpoint and a recently deleted file allocation table (DFAT) for maintaining information regarding user data deleted from since the previously taken checkpoint, both of which are utilized by the checkpointing filesystem to take a checkpoint of the filesystem and rollback the filesystem to a previously taken checkpoint, as well as to write and delete user data from the checkpointing filesystem.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 17 00:00:00 EDT 2005},
month = {Tue May 17 00:00:00 EDT 2005}
}