NonStop S-Series Planning and Configuration Guide (G06.29+)

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
4-27
Slot Assignments for Slots 51 Through 54
Slot Assignments for Slots 51 Through 54
Slot assignments for slots 51, 52, 53, and 54 depend on the type of PMF or IOMF CRU
installed in slots 50 and 55 of a system enclosure. HP recommends that you reserve
slots 51 and 52 for SEBs or MSEBs in processor enclosures.
Single-Ported Slots
Slots 51 and 52 are single ported in system enclosures containing models 1950, 1951,
1954, and 1960 PMF CRUs.
ServerNet/FX and ServerNet/DA adapters are single-ported and access either the X
fabric or the Y fabric, but not both, depending on the slot location. These adapters can
be installed in slots 51 and 52 of a processor enclosure if no SEBs or MSEBs are
present. Installing dual-ported ServerNet adapters into single-ported slots is NOT
recommended.
If slots 51 and 52 contain ServerNet adapters, no I/O enclosures can be attached to
the system enclosure for Tetra 8 configurations.
Dual-Ported Slots
Slots 51 and 52 are also dual ported in system enclosures containing PMF 2 CRUs,
IOMF CRUs, and IOMF 2 CRUs.
In processor and I/O enclosures:
•
Single-ported adapters in slot 51 and 53 access only the X fabric.
•
Single-ported adapters in slot 52 and 54 access only the Y fabric.
•
Dual-ported adapters in slots 51 through 54 access both X and Y fabrics.
In general:
A Component in Slot Communicates With Fabric
51 X
52 Y
53 X
54 Y