NEC SigmaBlade N8406-040(F) User Manual page 199

Alternate path between the 8G FC Switch
3.
Blade Enclosure #2
IMPORTANT:
By making cascade connection among all three 8G FC Switch, even if a failure occurs
on one cascade path, no influence to I/O operation occur because communication
between 8G FC Switch can be succeeded by the alternate path and no Fabric
reconstruction occur.
Cascading four 8G FC Switch (Blade Enclosure)
Configuration with minimum number of cascading paths
1.
Blade Enclosure #2
IMPORTANT:
If a failure occurs on the cascading path between the 8G FC Switch, a Fabric
reconstruction occurs. Influence to I/O operations may occur not only between the
cascading 8G FC Switch but within each 8G FC Switch (each Blade Enclosure).
Blade Enclosure #1
Blade Enclosure #1
Blade Enclosure #3
- 199 -
Blade Enclosure #3
Blade Enclosure #4