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Coda: a highly available file system for a distributed workstation environment

M. Satyanarayanan, J.J. Kistler, P. Kumar, M.E. Okasaki, E.H. Siegel, D.C. Steere
1990 IEEE transactions on computers  
Coda is a file system for a large-scale distributed computing environment composed of Unix workstations.  ...  Measurements from a prototype show that the performance cost of providing high availability in Coda is reasonable.  ...  Coda.  ... 
doi:10.1109/12.54838 fatcat:47m5742yjngpletdcp7gj7ss6y

codas object monitoring service

M.R Wheatley, M Rainford
2001 Fusion engineering and design  
The primary Control and Data Acquisition System (CODAS) of JET is based on a TCP/IP network of more than 150 computers.  ...  OMS provides a very reliable and highly successful 'data-type independent' means of monitoring many different objects.  ...  The service is also used for the distribution of other types of data amongst the CODAS computers. A TYPICAL OMS APPLICATION A typical use for OMS is the CODAS Mimic display.  ... 
doi:10.1016/s0920-3796(01)00445-8 fatcat:l53gskgbabfltpcloovrfcuqli

Disconnected operation in the Coda file system

James J. Kistler, M. Satyanarayanan
1991 ACM SIGOPS Operating Systems Review  
In this paper, we show that disconnected operation is feasible, efficient and usable by describing its design and implementation in the Coda File System.  ...  The central idea behind our work is that caching of data, now widely used for performance, can also be exploited to improve availability.  ...  Coda: A highly available file system for a distributed workstation environment. IEEE Trans. Comput. 39, 4 (Apr. 1990), 447-459. 19. SATYANARAYANAN, M.  ... 
doi:10.1145/121133.121166 fatcat:yozggmkzinb37dat74kn54dr7m

Disconnected operation in the Coda file system

James J. Kistler, M. Satyanarayanan
1991 Proceedings of the thirteenth ACM symposium on Operating systems principles - SOSP '91  
In this paper, we show that disconnected operation is feasible, efficient and usable by describing its design and implementation in the Coda File System.  ...  The central idea behind our work is that caching of data, now widely used for performance, can also be exploited to improve availability.  ...  Coda: A highly available file system for a distributed workstation environment. IEEE Trans. Comput. 39, 4 (Apr. 1990), 447-459. 19. SATYANARAYANAN, M.  ... 
doi:10.1145/121132.121166 dblp:conf/sosp/KistlerS91 fatcat:7i4xxovainambjrnb46krp5eve

Disconnected operation in the Coda File System

James J. Kistler, M. Satyanarayanan
1992 ACM Transactions on Computer Systems  
In this paper, we show that disconnected operation is feasible, efficient and usable by describing its design and implementation in the Coda File System.  ...  The central idea behind our work is that caching of data, now widely used for performance, can also be exploited to improve availability.  ...  Coda: A highly available file system for a distributed workstation environment. IEEE Trans. Comput. 39, 4 (Apr. 1990), 447-459. 19. SATYANARAYANAN, M.  ... 
doi:10.1145/146941.146942 fatcat:7e7evjr3ybcfzpgjbxeku2ijse

Scalable, secure, and highly available distributed file access

M. Satyanarayanan
1990 Computer  
We decided to build a distributed file system for this purpose because it would provide the right balance between functionality and complexity for our usage environment.  ...  Over the last decade, distributed file systems based on the Unix model have been the subject of growing attention.  ...  We decided to build a distributed file system for this purpose because it would provide the right balance between functionality and complexity for our usage environment.  ... 
doi:10.1109/2.53351 fatcat:5xaobyqdrzgttneu26nqrfaemm

Seamless mobile computing on fixed infrastructure

M. Kozuch, Mahadev Satyanarayanan, T. Bressoud, C. Helfrich, S. Sinnamohideen
2004 Computer  
ARCHITECTURE AND IMPLEMENTATION ISR uses the Coda distributed file system 5 for data storage and transport.  ...  Because VMware stores state in files, a distributed file system is the obvious choice for ISR Internet storage.  ... 
doi:10.1109/mc.2004.66 fatcat:rqalmadtovguhdtmka7prdtul4

Long Term Distributed File Reference Tracing: Implementation and Experience

L. Mummert, M. Satyanarayanan
1996 Software, Practice & Experience  
DFSTruce is a system to collect and analyze long-term file reference data in a distributed UNIX workstation environment.  ...  We have collected file reference traces from approximately 30 workstations continuously for over two years.  ...  us to trace their file references.  ... 
doi:10.1002/(sici)1097-024x(199606)26:6<705::aid-spe29>3.0.co;2-o fatcat:s73y4wdnsrew3e7btaqq6qvwia

Long Term Distributed File Reference Tracing: Implementation and Experience

L. Mummert, M. Satyanarayanan
1996 Software, Practice & Experience  
DFSTruce is a system to collect and analyze long-term file reference data in a distributed UNIX workstation environment.  ...  Our data has been used for a wide variety of purposes, including file system studies, performance measurement and tuning and debugging.  ...  us to trace their file references.  ... 
doi:10.1002/(sici)1097-024x(199606)26:6<705::aid-spe29>3.3.co;2-f fatcat:hor26qazhfgelflu7lmie6u2xi

Challenges for nomadic computing: Mobility management and wireless communications

Thomas F. La Porta, Krishan K. Sabnani, Richard D. Gitlin
1996 Journal on spesial topics in mobile networks and applications  
We examine how these techniques have been applied to several systems, and present results in an attempt to quantify their relative effectiveness.  ...  The nomadic computing environment is characterized by mobile users that may be connected to the network via wired or wireless means, many of whom will maintain only intermittent connectivity with the network  ...  Many applications and services currently available on desktops in a wired environment, such as distributed file systems and web browsing, must be supported in a wireless, mobile environment.  ... 
doi:10.1007/bf01342727 fatcat:axsjyb3ugjhudfbqehflusc464

Review of Some Transaction Models used in Mobile Databases

Prasanta Kumar Panda, Sujata Swain, P. K. Pattnaik
2013 International journal of computer and communication technology  
Thus, it is expected improve data availability while a disconnection.  ...  Due to mobile systems restrictions such as, for instance, limited memory and narrow bandwidth, it is only natural that researchers expend efforts to soothe such issues.  ...  Coda is a distributed file system by using file hoarding and concurrency control for mobile clients which provides disconnected operations [11] .  ... 
doi:10.47893/ijcct.2013.1166 fatcat:iojj2knscrff7iwtmgoxftgejy

Review of Some Transaction Models used in Mobile Databases

Prasanta Kumar Panda, Sujata Swain, P. K. Pattnaik
2011 International Journal of Instrumentation Control and Automation  
Thus, it is expected improve data availability while a disconnection.  ...  Due to mobile systems restrictions such as, for instance, limited memory and narrow bandwidth, it is only natural that researchers expend efforts to soothe such issues.  ...  Coda is a distributed file system by using file hoarding and concurrency control for mobile clients which provides disconnected operations [11] .  ... 
doi:10.47893/ijica.2011.1019 fatcat:vy7c2vwo4jcybk3vaxptzrio3i

A Survey of Distributed File Systems

M Satyanarayanan
1990 Annual Review of Computer Science  
The coverage of background material includes a taxonomy of file system issues, a brief history of distributed file systems, and a summary of empirical research on file properties.  ...  This paper is a survey of the current state of the art in the design and implementation of distributed file systems.  ...  There is a growing need for distributed file systems that are highly resilient to failures. Availability is the focus of the Coda file system, currently being built at Carnegie Mellon University.  ... 
doi:10.1146/annurev.cs.04.060190.000445 fatcat:n67pt6vl45cxhe5e4cjr6u64yu

SynRGen: an extensible file reference generator

Maria R. Ebling, M. Satyanarayanan
1994 Proceedings of the 1994 ACM SIGMETRICS conference on Measurement and modeling of computer systems - SIGMETRICS '94  
available environment.  ...  We have used SynRGen extensively in the development of the Coda File System[l 6]. Our experience confirms that it is an invaluable tool for file system development.  ...  When emulating a distributed workstation environment, each synthetic user is run on a different client machine.  ... 
doi:10.1145/183018.183030 dblp:conf/sigmetrics/EblingS94 fatcat:yulg3nzuqraazlbf2to6mu5j6e

SynRGen: an extensible file reference generator

Maria R. Ebling, M. Satyanarayanan
1994 Performance Evaluation Review  
available environment.  ...  We have used SynRGen extensively in the development of the Coda File System[l 6]. Our experience confirms that it is an invaluable tool for file system development.  ...  When emulating a distributed workstation environment, each synthetic user is run on a different client machine.  ... 
doi:10.1145/183019.183030 fatcat:24xveh6wjvaubbczn7wli3s56y
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