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- Deploy GFS when you have a large number (more than 10 for bandwidth-intensive I/O, more than 50 for moderate intensity I/O workloads) of Red Hat Enterprise Linux machines that must access, share, and often change a set of shared data.
- Deploy GFS when many Red Hat Enterprise Linux machines must run POSIX applications that share data.
- Deploy GFS if partitioning data among several NFS servers adds too much additional complexity and data duplication.
- Deploy GFS when the network processing overheads and loose semantics of NFS are not acceptable.
- Deploy NFS when your performance requirements are low, you have only a few client machines that are only sharing files in a loosely-coupled way, and low cost is important.
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