초록 ▼

A distributed filesystem operating on a distributed computing system uses existing local filesystems as building blocks. A cluster filesystem layer is added above the local filesystems to handle functions necessary for a distributed filesystem, such as data coherency. A meta-data stub is developed t

A distributed filesystem operating on a distributed computing system uses existing local filesystems as building blocks. A cluster filesystem layer is added above the local filesystems to handle functions necessary for a distributed filesystem, such as data coherency. A meta-data stub is developed to flush meta-data from the local filesystem to a storage device. In one embodiment, the meta-data stub is a copy of the flush portion of the meta-data portion of a local filesystem. Additionally, the distributed filesystem supports a plurality of coherency algorithms and variable granularity. A user may select the coherency algorithm that best suits the computer system and granularity that best suits the access patterns of the computer system.

대표청구항 ▼

[ What is claimed is:] [1.] A distributed filesystem configured to operate on a distributed computing system that includes a first node, a second node and a storage device, wherein said distributed filesystem comprises:a first local filesystem configured to operate on said first node and a second lo

[ What is claimed is:] [1.] A distributed filesystem configured to operate on a distributed computing system that includes a first node, a second node and a storage device, wherein said distributed filesystem comprises:a first local filesystem configured to operate on said first node and a second local filesystem configured to operate on said second node, wherein said first and second local filesystems are non-distributed filesystems;a first meta-data stub configured to flush meta-data of said first local filesystem to said storage device; anda cluster filesystem layer configured to interface to said first local filesystem, said second local filesystem and said first meta-data stub and configured to request said first meta-data stub to flush said meta-data to said storage device.