Fast disk array for image storage

Dan Feng; Zhichun Zhu; Hai Jin; Jiangling Zhang

doi:10.1117/12.263519

17 January 1997 Fast disk array for image storage

Dan Feng, Zhichun Zhu, Hai Jin, Jiangling Zhang

Proceedings Volume 3021, Multimedia Hardware Architectures 1997; (1997) https://doi.org/10.1117/12.263519
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

A fast disk array is designed for the large continuous image storage. It includes a high speed data architecture and the technology of data striping and organization on the disk array. The high speed data path which is constructed by two dual port RAM and some control circuit is configured to transfer data between a host system and a plurality of disk drives. The bandwidth can be more than 100 MB/s if the data path based on PCI (peripheral component interconnect). The organization of data stored on the disk array is similar to RAID 4. Data are striped on a plurality of disk, and each striping unit is equal to a track. I/O instructions are performed in parallel on the disk drives. An independent disk is used to store the parity information in the fast disk array architecture. By placing the parity generation circuit directly on the SCSI (or SCSI 2) bus, the parity information can be generated on the fly. It will affect little on the data writing in parallel on the other disks. The fast disk array architecture designed in the paper can meet the demands of the image storage.

Citation Download Citation

Dan Feng, Zhichun Zhu, Hai Jin, and Jiangling Zhang "Fast disk array for image storage", Proc. SPIE 3021, Multimedia Hardware Architectures 1997, (17 January 1997); https://doi.org/10.1117/12.263519

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