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

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
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Components
Components
These components are associated with or reside in an IOAM enclosure.
IOAM enclosure (chassis)
The IOAM enclosure (chassis) contains two installed midplanes:
•
I/O midplane for routing ServerNet signals
•
Power midplane for routing power signals for the power-supply controls
It can accommodate these components:
•
ServerNet switch boards
•
ServerNet adapters
•
Fans
•
Power supplies
•
Bezel
•
Cable management system
ServerNet Switch Board
A NonStop S-series system communicates with an IOAME through the ServerNet
switch board. Two ServerNet switch boards route ServerNet packets from MSEBs in
NonStop S-series systems to the ServerNet adapters in the IOAM enclosure, one for
the X fabric, the other for the Y.
ServerNet Adapters
Fibre Channel ServerNet adapters (FCSAs) are used to communicate between an
IOAM and additional storage such as Fibre Channel disk drives, Fibre Channel tape
drives, or an Enterprise Storage System (ESS) disk. Gigabit 4-port ServerNet adapters
(G4SAs) provide a communications interface.
Fans
Four fans provide the cooling for components inside an IOAM enclosure. The fans are
located in slots 16 and 17 on the front side of an IOAM enclosure.
Note. For more information about FCSAs and G4SAs, the Fibre Channel ServerNet Adapter
Installation and Support Guide and the Gigabit Ethernet 4-Port ServerNet Adapter Installation
and Support Guide are available for your service provider. For more information about Fibre
Channel tape drives, see the manual for the particular tape drive product. For more information
about an ESS, the Modular I/O Installation and Configuration Guide is available to your service
provider in the NTL Hardware Service and Maintenance collection.