Checkpointing filesystem

专利名称：Checkpointing filesystem

发明人：Alan G. Gara,Mark E. Giampapa,Burkhard D.

Steinmacher-Burow

申请号：US10258515申请日：20020225公开号：US0616B2公开日：20050517

专利附图：

摘要：The present in invention is directed to a checkpointing filesystem of a

distributed-memory parallel supercomputer comprising a node that accesses user dataon 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 ofthe filesystem and rolling back to a previously taken checkpoint, as well as for writinguser data to and deleting user data from the checkpointing filesystem. The checkpointingfilesystem provides a recently written file allocation table (WFAT) for maintaininginformation regarding the user data written since a previously taken checkpoint and arecently deleted file allocation table (DFAT) for maintaining information regarding userdata deleted from since the previously taken checkpoint, both of which are utilized bythe checkpointing filesystem to take a checkpoint of the filesystem and rollback thefilesystem to a previously taken checkpoint, as well as to write and delete user data fromthe checkpointing filesystem.

申请人：Alan G. Gara,Mark E. Giampapa,Burkhard D. Steinmacher-Burow

地址：Mount Kisco NY US,Irvington NY US,Mount Kisco NY US

国籍：US,US,US

代理机构：Scully, Scott, Murphy & Presser

代理人：Daniel P. Morris, Esq.

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