AIDA-based real-time fault-tolerant broadcast disks
Bestavros, A.
Real-Time Technology and Applications Symposium, 1996. Proceedings., 1996 IEEE
Volume , Issue , 10-12 Jun 1996 Page(s):49 - 58
Digital Object Identifier 10.1109/RTTAS.1996.509522
Summary:The proliferation of mobile computers and wireless networks
requires the design of future distributed real-time applications to
recognize and deal with the significant asymmetry between downstream and
upstream communication capacities, and the significant disparity between
server and client storage capacities. Zdonik et al. (1994) have proposed
the use of broadcast disks as a scalable mechanism to deal with this
problem. In this paper, we propose a new broadcast disks protocol, based
on our Adaptive Information Dispersal Algorithm (AIDA). Our protocol is
different from previous ones in that it improves both timeliness and
fault tolerance, while allowing for a finer control of multiplexing of
prioritized data. We start with a general introduction to broadcast
disks. Next, we propose broadcast disk organizations that are suitable
for real-time applications. Next, we present AIDA and show its
fault-tolerance properties. We conclude with the description and
analysis of AIDA-based broadcast disk organizations that achieve both
timeliness and fault-tolerance, while preserving downstream
communication capacity
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