| 摘要 |
The present invention provides a system and method capable of increasing the efficiency of a distributed file system using an iSCSI storage system in an asymmetric cluster distributed file system. The network distributed file system according to the present invention is driven by including a metadata server (M), a data server (D), and an application server (O), and further includes an extended-type iSCSI storage system including a plurality of iSCSI gateways for processing SCSI commands on the basis of an iSCSI interface using the metadata server (M) and the data server (D) as a block input and output storage space. The iSCSI gateway includes a SCSI target core functioning as a standard interface of a block data input and output that requests from the outside of a network based storage, a SCSI CDB processing module for supporting an iSCSI interface to the distributed file system, and a block layout manager managing data block information distributed on a plurality of physical disk spaces. |
