Data organization and storage hierarchies in a multimedia server

Author

Christodoulakis, S. ; Anestopoulos, D. ; Argyropoulos, S.

Author_Institution

Tech. Univ. of Crete, Chania, Greece

fYear

1993

fDate

22-26 Feb. 1993

Firstpage

596

Lastpage

604

Abstract

The authors present the data organization and storage hierarchy support in the OVM object-oriented multimedia database kernel. Data in the OVM (object virtual machine) are organized in three layers: the logical file layer, the physical file layer, and the device layer. The data organization on devices allows for multilevel storage hierarchies, support for removable disks, parallel access, and storage transparency. The implementation model of the Storage Machine (SM), the storage manner of OVM, is presented. The current version of SM consists of more than 20000 lines of C++ source code, developed on Sun 4 workstations (SunOS 4.0 and 4.1), and ported to HP workstations (HP-UX 8.05) and PCs (PC-DOS).<>

Keywords

file servers; multimedia systems; object-oriented databases; storage management; C++ source code; OVM object-oriented multimedia database kernel; data organization; device layer; implementation model; logical file layer; multilevel storage hierarchies; multimedia server; object virtual machine; parallel access; physical file layer; removable disks; storage hierarchy support; storage transparency; Buffer storage; Delay; Environmental management; Information retrieval; Kernel; Multimedia databases; Multimedia systems; Object oriented databases; Optical devices; Workstations;

fLanguage

English

Publisher

ieee

Conference_Titel

Compcon Spring '93, Digest of Papers.

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-8186-3400-6

Type

conf

DOI

10.1109/CMPCON.1993.289740

Filename

289740