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| n |
Goal
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efficient
and transparent access to shared files within a mobile
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environment
while maintaining data consistency
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| n |
Problems
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limited
resources of mobile computers (memory, CPU, ...)
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low
bandwidth, variable bandwidth, temporary disconnection
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high
heterogeneity of hardware and software components (no
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standard
PC architecture)
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wireless
network resources and mobile computer are not very
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reliable
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standard
file systems (e.g., NFS, network file system) are very
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inefficient,
almost unusable
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| n |
Solutions
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replication
of data (copying, cloning, caching)
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data
collection in advance (hoarding, pre-fetching)
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