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z/OS Distributed File Service zSeries File System Implementation z/OS V1R13 by Robert Hering, Paul Rogers

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Sysplex considerations
This chapter describes using zFS file systems in sysplex sharing mode. zFS supports a shared file system capability in a multisystem sysplex environment. The term shared file system environment refers to a sysplex that has a BPXPRMxx specification of SYSPLEX(YES). That is, users in a sysplex can access zFS data that is owned by another system in the sysplex.
For full sysplex support, zFS must be running on all systems in the sysplex in a shared file system environment, and all zFS file systems must be compatibility mode file ...

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