Specifications

1
Shelf Management Overview
15
Field replaceable units (FRUs)
AdvancedTCAdefinestwotypesofFRUsthatarevisibletoandcontrolledthroughtheIPMI
infrastructure:
• IntelligentFRUsphysicallyincludeanIPMController.
• ManagedFRUsareeitherIntelligentFRUsorrepresentedbyanIntelligentFRUandvisible
totheIPMIinfrastructure.
EachFRUthatdirectlyattachestoIPMB‐0mustbeanIntelligentFRU.
2
AllRadisysATCAfront
modulesandAMCsareintelligentFRUs,alongwithmostotherFRUsintheshelf.Theshelf
itselfisnotaFRU.AnintelligentFRUthatrepresentsanon‐intelligentFRUisaproxy.
Anexampleofanon‐intelligentFRUisashelfFRUdevice,whichprovides
non‐volatilestorage
forshelf‐specificinformation.AccesstotheshelfFRUdevicethroughaproxyFRUisrequired
fornormalshelfmanagementoperation.Table 1identifiestheproxyFRUsandthenon‐
intelligentFRUstheyrepresentineachtypeofshelf.
Note:TheATCA‐6002shelfdoesnotuseproxyFRUs.
Thisshelfdoesnotsupportaphysical
shelfFRUdevice,SPM,PEM,orotherdevicesthattypicallyrequireproxyFRUs.
ForIPMBaddressinformation,seeIPMBaddressesofslotsandFRUsonpage 134.Formore
SPMinformation,seetheappropriateShelfPeripheralModuleHardwareReference
(ATCA‐5010orATCA‐5014).FormoreRCMinformation,seetheATCA‐6014/ATCA‐6016
PlatformHardwareReference.
2. Source:PICMG®3.0Revision3.0AdvancedTCABaseSpecification,March24,2008.
Table 1. Proxy FRUs and non-intelligent FRUs they represent in Radisys shelves
ATCA-6000 shelf ATCA-6006 shelf ATCA-6014 shelf ATCA-6016 shelf
Proxy FRU
SPM (one or two possible) PEMs RCM (Radisys Chassis Manager, one or two
possible)
Non-intelligent FRUs
managed through proxy
Shelf FRU device
Shelf display panel (SDP)
Two shelf FRU
devices
Two shelf FRU devices (one per RCM)
Shelf alarm panel
Two PEMs
Three fan trays
Other entities managed
through proxy
Shelf temperature sensors
Air filter presence switches
Telco alarm connector
n/a Shelf temperature sensors
Air filter presence sensor
Additional information
When an ATCA-5010 SPM or ATCA-5014
SPM is installed, a virtual SPM provides
generic management access by
representing the currently active SPM at a
fixed IPMB address. The virtual SPM
address must be used instead of the active
SPM address to communicate with the
non-intelligent FRUs managed by the proxy
FRU.
n/a A virtual RCM provides generic management
access by representing the currently active
RCM at a fixed IPMB address.
The virtual RCM reads data from only one of
the two shelf FRU devices—the one
corresponding to the active RCM. The virtual
RCM writes updated data to both shelf FRU
devices to keep their contents identical.