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

Terms and Concepts
HP NonStop S-Series Planning and Configuration Guide—523303-021
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IOAM Enclosures
IOAM Enclosures
An IOAM enclosure provides you with access to other storage options. It is mounted in
a modular cabinet and connects to the MSEB of S76000 and later NonStop S-series
systems. Up to three IOAM enclosures, a maintenance switch, two power distribution
units (PDUs), and a UPS can be installed inside one cabinet. An IOAM enclosure is 11
rack units (U) high.
IOAM enclosures also can be installed in any standard 19-inch rack the customer
chooses provided it is deep enough, but the number of enclosures depends on the
height of the rack.
IOAM Enclosure Components
An IOAM enclosure (chassis) contains:
•
I/O midplane for routing ServerNet signals
•
Power midplane for routing power signals for the power-supply controls
These components are installed in an IOAM enclosure:
•
Two ServerNet switch boards for routing ServerNet packets from the MSEB in the
processor enclosure to the ServerNet adapters in the IOAM enclosure.
•
Up to 10 new form factor ServerNet adapters. These adapters include Fibre
Channel ServerNet adapters (FCSAs) and Gigabit Ethernet 4-port ServerNet
adapters (G4SAs). FCSAs can be used to connect to additional storage such as
Fibre Channel disk drives, Fibre Channel tape drives, or an Enterprise Storage
System (ESS) disk.
•
Four cooling fans
•
Four power supplies
•
One bezel
Note. IOAM enclosures and all related components are field-replaceable units (FRUs) and
must be serviced by HP trained service providers. For more information about an IOAM
enclosure, the Modular I/O Installation and Configuration Guide is available to your HP trained
service provider. This manual is located in the NTL Hardware Service and Maintenance
collection.
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.