NonStop S-Series Hardware Installation and FastPath Guide (G06.25+)

Introduction
HP NonStop S-Series Hardware Installation and FastPath Guide—529443-001
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Installation Overview
Enclosure Positions
System enclosures can be arranged in single-high stacks (one enclosure) or
double-high stacks (two enclosures, one on top of the other):
If you will reduce your system at any point in the future, place enclosures that you
might remove from your system on the top of the stack.
Modified I/O Enclosures
I/O enclosures shipped with the G06.13 RVU or earlier require removal of a pin from
their backplanes to ensure system fault tolerance. If you do not know when your I/O
enclosure was manufactured, contact your service provider.
For information about the removal procedure and the possibilities for later use of a
modified enclosure, see the NonStop S-Series Planning and Configuration Guide.
IOAM Enclosures
An IOAM enclosure provides you with access to additional disk storage. An IOAM
enclosure is mounted into a modular cabinet and connects to the MSEB of S76000 and
later NonStop S-series systems. Up to three IOAM enclosures, one maintenance
switch, two PDUs, and one UPS can be installed into one cabinet. IOAM enclosures
can be installed in any standard 19-inch rack, but the number of enclosures depends
on the height of the rack.
IOAM Enclosure Components
An IOAM enclosure (chassis) contains two midplanes:
•
I/O midplane for routing ServerNet signals
•
Power midplane for routing power and signals for the power-supply controls
These components are installed in an IOAM enclosure:
•
Two ServerNet switch boards for routing ServerNet packages from the MSEB to
the ServerNet adapters. The ServerNet switch board enables communication
between a NonStop S-series system and an IOAM.
•
Up to 10 specially designed ServerNet adapters. These adapters include:
Term Definition
Base enclosure A system enclosure that can be placed on the floor with another
enclosure on top of it.
Stackable enclosure A system enclosure that can rest on top of another system
enclosure.
Caution. IOAM enclosures must be installed by service providers trained by HP. Your service
provider should refer to the Modular I/O Installation and Configuration Guide which is located in
the NTL Hardware Service and Maintenance library.