RadiSys ATCA-4616 Specifikace stáhnout pdf (Strana 26)

Software Architecture

Figure 7. SCM Shelf Manager redundancy

Shelf Manager failover

ComponentfailuresintheShMSandShMCaredetectedthroughthefollowingcombination

ofsendinganechorequestpacketthenwaitingforavalidresponse(pinging)andmonitoring

theperiodicwatchdogstrobes:

1. EachShMCpingsitspeerShMCovertheIPMB.

2. EachShMSattemptstopingitspeerShMSovertheLAN

interfaceonthebackplane.

3. IfpingsovertheLANinterfacefail,theShMStriestopingitspeerShMSusingthefailover

paththroughIPMBandtheserialinterfaces,asindicated inFigure 7.

SCM

ShMS

ShMC

IPMB-0 A interface

IPMB-0 B interface

Serial

interface

Serial

interface

ShMS/ShMC Synchronization Normal Path

ShMS Synchronization Failover Path

IPMB inter face

LAN interface

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 145 146

Žádné komentáře

RadiSys ATCA-4616 Specifikace Strana 26