Servicing SPs
The servers have two redundant SPs: SP0 and SP1.
In SPARC M8-8 and SPARC M7-8 servers, the SPs are located in the CMIOU chassis.
See “SPARC M8-8 and SPARC M7-8 Configurations and Failover Behavior (Two
PDomains)” on page 80 and “SPARC M8-8 and SPARC M7-8 Configurations and Failover
Behavior (One PDomain)” on page 81 for information about SP configurations on these servers.
In a SPARC M7-16 server, the redundant SPs (SP0 and SP1) are located in the switch chassis.
These SPs manage system activity. The SPARC M7-16 also contains two SPPs in each
CMIOU chassis that manage DCU activity. The top CMIOU chassis contains SPP2 and
SPP3, and the bottom CMIOU chassis contains SPP0 and SPP1. For information about SP
and SPP configurations on this server, see “SPARC M7-16 Configurations and Failover
Behavior” on page 81.
For the location of the SPs and SPPs, see “CMIOU Chassis Rear Components” on page 21 and
“Switch Chassis Rear Components (SPARC M7-16)” on page 25.
Note - Replace a failed SP or SPP as soon as possible. Do not remove an SP or SPP until a
replacement is available.
Caution - This procedure requires that you handle components that are sensitive to electrostatic
discharge. This discharge can cause server components to fail. Follow antistatic precautions to
prevent electrostatic damage. See “Prevent ESD Damage” on page 61.
Caution - The SPARC M8-8 servers include SPs that are not compatible with the SPARC M7
servers. Never install a SPARC M8 SP in a SPARC M7 server, and never install a SPARC M7
SP in the SPARC M8-8 server. The SPARC M8 SP has a SPARC M8 label on its left extraction
lever (see “SER MGT and NET MGT Port Locations and Numbering” on page 121). The
SPARC M7 SPs do not have a label.
These topics explain how to service the SPs and SPPs.
Servicing SPs 117
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