SPARC M8-8 and SPARC M7-8 Configurations and Failover Behavior (One PDomain)
SPARC M8-8 and SPARC M7-8 Configurations and Failover
Behavior (One PDomain)
In a SPARC M8-8 or a SPARC M7-8 server that is configured with a single PDomain, there
are eight CMIOUs in the PDomain. Each CMIOU chassis has two redundant SPs. To facilitate
failover from one SP to another, one SP serves as the Active SP, and one serves as the Standby
SP. The Active SP manages system resources unless it can no longer do so, in which case the
Standby SP assumes its role.
Related Information
■
“Determine Which SP Is Managing System Activity” on page 123
■
“Change Which SP Is Managing System Activity” on page 124
■
“Oracle ILOM Paths for SPMs” on page 122
SPARC M7-16 Configurations and Failover Behavior
A SPARC M7-16 server is divided into four configurable units called DCUs. These DCUs have
four CMIOUs each. Two of the DCUs are in the top CMIOU chassis, and two are in the bottom
CMIOU chassis. You can configure DCUs into one to four PDomains.
Each CMIOU chassis also has two service processor proxies.
SPP2
and
SPP3
are in the top
chassis, and
SPP0
and
SPP1
are in the bottom chassis. These SPPs have two service processor
modules each. To achieve redundancy, each SPM (
SPM0
and
SPM1
) on an SPP is assigned to a
different DCU.
SPM0
on each SPP manages one DCU in the CMIOU chassis, while
SPM1
on
each SPP manages the other DCU in the chassis.
DCU Managed
CMIOUs Assigned
Assigned SPM Pairs
DCU_0
CMIOU_0
–
CMIOU_3
/SYS/SPP0/SPM0
/SYS/SPP1/SPM0
DCU_1
CMIOU_4
–
CMIOU_7
/SYS/SPP0/SPM1
/SYS/SPP1/SPM1
DCU_2
CMIOU_8
–
CMIOU_11
/SYS/SPP2/SPM0
/SYS/SPP3/SPM0
DCU_3
CMIOU_12
–
CMIOU_15
/SYS/SPP2/SPM1
Understanding Server Configurations and Failover Behavior
81
Summary of Contents for SPARC M7
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