Sun Fire 3800/4800/4810/6800 System Controller May Report "private link is down"

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Impact

Intermittently, the communication between system controllers on Sun Fire 3800/4800/4810/6800 Servers may report "private link is down". During this sequence of a lost connection, the failover functionality is disabled. However, the communication is automatically re-established between the system controllers.

Because of the potential for numerous error messages this issue may result in unnecessary replacement of hardware.

Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Sun Fire 6800/4810/4800/3800 with firmware 5.13.x
• Sun Fire 6800/4810/4800/3800 without firmware 5.14.5
• Sun Fire 6800/4810/4800/3800 without firmware 5.15.1

Note: Please use the "showsc -v" command to display the firmware version of the System Controller.

Symptoms

Should the described issue occur, messages similar to the following might be observed:

    Platform.SC [ID 200935 local0.warning] SC Failover: private link is down
    Platform.SC [ID 316912 local0.notice] SC Failover: private link is down, 
    failover is still active until any configuration change is done
    Platform.SC [ID 913363 local0.notice] SC Failover: enabled and active.

Workaround

There is no required action for recovery. The private link communication is restored automatically..

There is no workaround. Please see the "Resolution" section below.

Resolution

This issue is addressed in the following releases:

SPARC Platform

• Sun Fire 6800/4810/4800/3800 with firmware 5.14.5 (delivered with patch 112883-06) or later
• Sun Fire 6800/4810/4800/3800 with firmware 5.15.1 (delivered with patch 112884-02) or later

Note: Systems with 5.13.x firmware will require an upgrade.

Modification History


Date: 18-JUN-2003

• Updated Contributing Factors and Resolution sections
• State: Resolved

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