MOS: a multicomputer distributed operating system
Software—Practice & Experience
The LOCUS distributed system architecture
The LOCUS distributed system architecture
A trace-driven analysis of the UNIX 4.2 BSD file system
Proceedings of the tenth ACM symposium on Operating systems principles
Communications of the ACM
TENEX, a paged time sharing system for the PDP - 10
Communications of the ACM
On the criteria to be used in decomposing systems into modules
Communications of the ACM
The structure of the “THE”-multiprogramming system
Communications of the ACM
The Object Model: A Conceptual Tool for Structuring Software
Operating Systems, An Advanced Course
SOSP '77 Proceedings of the sixth ACM symposium on Operating systems principles
LOCUS a network transparent, high reliability distributed system
SOSP '81 Proceedings of the eighth ACM symposium on Operating systems principles
The LOCUS distributed operating system
SOSP '83 Proceedings of the ninth ACM symposium on Operating systems principles
The distributed V kernel and its performance for diskless workstations
SOSP '83 Proceedings of the ninth ACM symposium on Operating systems principles
On the duality of operating system structures
ACM SIGOPS Operating Systems Review
| Hi-index | 0.00 |
DUNIX is an operating system that integrates several computers, connected by a packet switching network, into a single UNIX machine. As far as the users and their software can tell, the system is a single large computer running UNIX. This illusion is created by cooperation of the computers' kernels. The kernels' mode of operation is novel. The software is procedure call oriented. The code that implements a specific system call (e.g., open) does not know whether the object in question (the file) is local or remote. That uniformity makes the kernel small and easy to maintain. The system behaves gracefully under subcomponents' failures. Users which do not have objects (files, processes, tty, etc) in a given computer are not disturbed when that computer crashes. The system administrator may switch a disk from a "dead" computer to a healthy one, and remount the disk under the original path-name. After the switch, users may access files in that disk via the same old names. DUNIX exhibits surprisingly high performance. For a compilation benchmark, DUNIX is faster than 4.2 BSD, even if in the DUNIX case all the files in question are remote. Currently, in Bell Communications Research we have an installation running DUNIX over five DEC VAX computers connected by an Ethernet. This installation speaks TCP/IP and is on the Internet network.