If you need to connect a large number of hosts to the DS6000, each using multiple paths, the
eight host adapter ports that are available in the DS6000 may not be sufficient to
accommodate all the connections. The solution to this problem is the use of SAN switches or
directors to switch logical connections from multiple hosts. In a zSeries environment you will
need to select a SAN switch or director that also supports FICON.
We recommend that more than one SAN switch be provided to ensure continued availability.
For example ...
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