Shelf Manager; Hub Blade; Table 5-9 Start Up Dependencies Of The Shelf Manager And The Hub Blade - Emerson AXP 1410 Installation And Use Manual

Configuring and Operating the System
5.7.2.1

Shelf Manager

The shelf manager which becomes active at system start up is dependent on the status of the
partner switch blade. It detects whether a hub blade is present and whether the hub blade's
ejector handles are closed. Then it negotiates its own active/standby role with its partner
ShMC.
The following table shows which shelf manager becomes active or standby depending on
which hub blades are present in the shelf.

Table 5-9 Start up Dependencies of the Shelf Manager and the Hub Blade

Left Hub Blade
-
-
p
p
-
h
h
p
h
p: Hub blade present
h: Hub blade ejector handles are open
-: Hub blade not present
a: Shelf manager active
s: Shelf manager standby
5.7.2.2

Hub Blade

Hub blades are associated with a shelf manager. Hub 1 with SAM-A and hub 2 with SAM-B.
104
Right Hub Blade Left Shelf Manager
- a
p s
- a
p a
h s
- a
h a
h a
p s
Right Shelf Manager
s
a
s
s
a
s
s
s
a
AXP 1410 Installation and Use (6806800H70F)