System outage due to SCC card removal. SCC has been removed..

Asset ID:	1-72-2078378.1
Update Date:	2017-11-30
Keywords:

Solution Type Problem Resolution Sure

Solution 2078378.1 : System outage due to SCC card removal. SCC has been removed..

Applies to:

Sun Fire V240 Server - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Customer reports an outage due to SCC error

Cause

I2C bus noise has caused the SCC card to not be recognized causing a server shutdown. several messages from disks and sensors can be seen on the messages.

The server will shutdown in 60 seconds after the SCC card is removed. If the customer didn't remove it himself and the messages show up this indicates a possible noise issue on the bus causing the card not to be recognized as present and causing the shutdown.

Nov 6 18:30:39 [ID 683153 kern.error] SCC has been removed.
Nov 6 18:30:39 : [ID 708259 kern.error] Replace SCC to avert managed system shutdown in 60 seconds.
Nov 6 18:30:42 [ID 106032 kern.error] DISK @ HDD0 has FAILED.
Nov 6 18:30:42 : [ID 106048 kern.error] DISK @ HDD1 has FAILED.
Nov 6 18:30:43 : [ID 106064 kern.error] DISK @ HDD2 has FAILED.
Nov 6 18:30:43 [ID 735977 kern.crit] VOLTAGE_SENSOR @ MB.P0.V_CORE has exceeded low warning threshold.
Nov 6 18:30:44 : [ID 106080 kern.error] DISK @ HDD3 has FAILED.
Nov 6 18:30:47 : [ID 736489 kern.crit] VOLTAGE_SENSOR @ MB.P1.V_CORE has exceeded low warning threshold.
Nov 6 18:30:49 : [ID 852376 kern.error] SC Login Failure for user root.
Nov 6 18:30:51 : [ID 903331 kern.crit] VOLTAGE_SENSOR @ MB.V_VTT has exceeded low warning threshold.
Nov 6 18:30:54 : [ID 947482 kern.crit] VOLTAGE_SENSOR @ MB.V_GBE_+2V5 has exceeded low warning threshold.
Nov 6 18:30:58 : [ID 112644 kern.crit] VOLTAGE_SENSOR @ MB.V_GBE_CORE has exceeded low warning threshold.
Nov 6 18:31:02 : [ID 830454 kern.crit] VOLTAGE_SENSOR @ MB.V_VCCTM has exceeded low warning threshold.
Nov 6 18:31:06 : [ID 573102 kern.crit] VOLTAGE_SENSOR @ MB.V_+2V5 has exceeded low warning threshold.
Nov 6 18:31:09 : [ID 573098 kern.crit] VOLTAGE_SENSOR @ MB.V_+1V5 has exceeded low warning threshold.
Nov 6 18:31:13 a: [ID 585172 kern.crit] VOLTAGE_SENSOR @ MB.BAT.V_BAT has exceeded low warning threshold.
Nov 6 18:31:33 power: [ID 132712 kern.warning] WARNING: Power off requested, powering down the system!
Nov 6 18:31:34 : [ID 155890 kern.crit] Correct SCC not replaced - shutting managed system down.
Nov 6 18:31:34 : [ID 222544 kern.error] SC Request to Power Off Host.
Nov 6 18:31:41 sshd[1626]: [ID 800047 auth.info] Received signal 15; terminating.
Nov 6 18:31:50 cacao_launcher[675]: [ID 871707 daemon.info] Common agent container launcher : monitoring of Common Agent Container ended

Solution

The noise on the bus can be caused by several reasons, the first suspect are the cables on the system so the cable kit needs to be replaced and all the other cables reseated.

If the cables replacement/reseating doesn't fix the issue then it would mean that either the MB sensors are bad or the SAS controller is bad or the SCC card reader is bad or there's an issue on the Bus, for which a MB would need to be replaced or the SCC card reader

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