Artesyn AXP640, Installation And Use Manual, Page: 45 / 190

Platform Architecture
AXP640 Installation and Use (6806800M24F)
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The implementation of the interface is indicated by the level of PICMG compliance a blade or
hub is designed. The AXP640 supports the PICMG 3.1 fabric standard to allow for several
configuration options that can provide greater bandwidth to certain slots in the shelf. The
fabric interface supports: PICMG 3.1 Option 9 (10Gbps).
1.4.3 IPMI Network
The Intelligent Platform Management Interface (IPMI) is based on a redundant radial topology.
Redundant IPMI networks are supported by the Shelf Management Alarm Module (SAM) to
manage the shelf resources.
The SAM is the center of the IPMI network. The SAM connects to all slots in the shelf and
monitors and reports on the content of the AXP640. The SAM collects environmental data
from sensors within the shelf and can assist high availability software to determine when a
failover is necessary due to hardware removal or environmental changes, such as an over-temp
condition.
The SAMs contain the Shelf Management Controller (ShMC) which polls all devices resident to
the shelf and collects the FRU data records for all the components. The SAM also manages non-
IPMI devices for the shelf and performs environmental monitoring of the temperature and
voltage. Using the PICMG 3.0 standard, the SAM is able to power off and reset slots for hot swap
capability.