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IBM System Storage SAN Volume Controller Best Practices and Performance Guidelines by Leandro Torolho, Otavio Rocha Filho, Jon Parkes, Paulo Neto, Ronda Hruby, Ivo Gomilsek, Katja Gebuhr, Mary Lovelace

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Hosts
You can monitor host systems that are attached to the SAN Volume Controller by following several best practices. A host system is an Open Systems computer that is connected to the switch through a Fibre Channel (FC) interface.
The most important part of tuning, troubleshooting, and performance is the host that is attached to a SAN Volume Controller. You need to consider the following areas for performance:
Using multipathing and bandwidth (physical capability of SAN and back-end storage)
Understanding how your host performs I/O and the ...

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