Servicing Switch Units - Oracle SPARC M8 Service Manual

Servicing Switch Units

In SPARC M7-16 servers, switch units are part of the scalability feature that enables a PDomain
to control DCUs. Switch units are configured to work together as a single unit. If a switch unit
fails, the server will operate in degraded mode. At least five switch units must be functioning
for the server to operate.
Replace a failed switch unit as soon as possible.
For the location of the six switch units, see
M7-16)" on page 25.
This procedure requires that you handle components that are sensitive to electrostatic
Caution -
discharge. This discharge can cause server components to fail. Follow antistatic precautions to
prevent electrostatic damage. See
These topics explain how to service switch units.
Description
Learn about switch unit LEDs.
Prepare to remove a switch unit.
Replace a switch unit.
Unseat or reseat a switch unit as part of
another component's service operation.
Related Information
"Identifying Components" on page 15
■
"Detecting and Managing Faults" on page 35
■
"Preparing for Service" on page 57
■
"Controlling the Server and Domains" on page 67
■
"Switch Chassis Rear Components (SPARC
"Prevent ESD Damage" on page
Links
"Switch Unit LEDs" on page 190
"Prepare a Switch Unit for Removal" on page 191
"Remove a Switch Unit" on page 194
"Install a Switch Unit" on page 197
"Unseat a Switch Unit" on page 192
"Reseat a Switch Unit" on page 196
61.
Servicing Switch Units 189