NEC SIGMABLADE N8406-020 - Manual (Page 113)

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2. Two paths configuration between the FC Switch Modules
„ By making cascade connection between FC Switch Modules to two paths,
even if a failure occurs on one cascade path, no influence to I/O operation
occur because I/O operation is succeeded by redundant path and no Fabric
reconstruction occurs.
3. Alternate path between the FC Switch Modules
„ By making cascade connection among all four FC Switch Modules, even if a
failure occurs on one cascade path, no influence to I/O operation occur
because communication between FC Switch Modules can be succeeded by
the alternate path and no Fabric reconstruction occur.
Blade Enclosure #2 Blade Enclosure #3 Blade Enclosure #4
Blade Enclosure #1
Blade Enclosure #2 Blade Enclosure #3 Blade Enclosure #4
Blade Enclosure #1