SPARC T5-2: boot hangs at 'Control-get failed' if improper voltage supplied

Asset ID:	1-72-1996519.1
Update Date:	2017-07-26
Keywords:

Solution Type Problem Resolution Sure

Solution 1996519.1 : SPARC T5-2: boot hangs at 'Control-get failed' if improper voltage supplied

Applies to:

SPARC T5-2 - Version All Versions and later
Information in this document applies to any platform.

Symptoms

SPARC T5-2: not booting after FW upgrade

-> start /system -script
Starting /System

-> start /host/console -script

Serial console started. To stop, type #.
@(#)Hostconfig 1.4.2 2014/10/24 09:35
2015-04-03 19:10:20 0:0:0> NOTICE: TPM is turned off
2015-04-03 19:10:29 1:0:0> NOTICE: SPARC-T5 Revision 1.2 Speed 3600MHz
2015-04-03 19:10:29 0:0:0> NOTICE: SPARC-T5 Revision 1.2 Speed 3600MHz
2015-04-03 19:10:36 0:0:0> NOTICE: Initializing Memory
2015-04-03 19:11:33 0:0:0> NOTICE: Initializing MCU 0 Memory Link 0
2015-04-03 19:11:50 0:0:0> NOTICE: Initializing MCU 0 Memory Link 1
2015-04-03 19:12:07 0:0:0> NOTICE: Initializing MCU 1 Memory Link 0
2015-04-03 19:12:23 0:0:0> NOTICE: Initializing MCU 1 Memory Link 1
2015-04-03 19:12:39 0:0:0> NOTICE: Initializing MCU 2 Memory Link 0
2015-04-03 19:12:55 0:0:0> NOTICE: Initializing MCU 2 Memory Link 1
2015-04-03 19:13:11 0:0:0> NOTICE: Initializing MCU 3 Memory Link 0
2015-04-03 19:13:27 0:0:0> NOTICE: Initializing MCU 3 Memory Link 1
2015-04-03 19:13:48 0:0:0> NOTICE: Pausing 120 seconds for Coherence Link tuning
2015-04-03 19:15:48 0:0:0> NOTICE: Found optimal Coherence Link tuning
2015-04-03 19:17:14 0:0:0> NOTICE: Booting config = factory-default
Hypervisor version: @(#)Hypervisor 1.13.2.b 2014/11/13 16:29

2015-04-03 18:53:12     SP> NOTICE: Start Host in progress: Step 5 of 7
2015-04-03 18:53:13     SP> NOTICE: Start Host in progress: Step 6 of 7
NOTICE: Entering OpenBoot.
2015-04-03 18:53:30     SP> NOTICE: Start Host in progress: Step 7 of 7
NOTICE: Fetching Guest MD from HV.
NOTICE: Starting additional cpus.
NOTICE: Initializing LDC services.
NOTICE: Probing PCI devices.
Control-get failed   <----- System stops here, does not enter OBP

Changes

After firmware upgrade:
From: PATCH# 18544278 VERSION: 9.2.0.a (system was booting)
To: PATCH# 19264421 VERSION: 9.2.1.b (unable to boot)

Cause

Due to lack of the appropriate input voltage, system was not able to completely initialize and start OBP.

-> show /SYS/PS0/V_IN

/SYS/PS0/V_IN
  Properties:
  type = Voltage
  ipmi_name = PS0/V_IN
  class = Threshold Sensor
  value = 116.000 Volts   upper_nonrecov_threshold = N/A ( should be = 200 - 240 VAC, 50-60Hz )
  upper_critical_threshold = N/A
  upper_noncritical_threshold = N/A
  lower_noncritical_threshold = N/A
  lower_critical_threshold = N/A
  lower_nonrecov_threshold = N/A
  alarm_status = cleared

-> show /SYS/PS1/V_IN

/SYS/PS1/V_IN
  Properties:
  type = Voltage
  ipmi_name = PS1/V_IN
  class = Threshold Sensor
  value = 118.000 Volts   upper_nonrecov_threshold = N/A ( should be = 200 - 240 VAC, 50-60Hz )
  upper_critical_threshold = N/A
  upper_noncritical_threshold = N/A
  lower_noncritical_threshold = N/A
  lower_critical_threshold = N/A
  lower_nonrecov_threshold = N/A
  alarm_status = cleared

Incorrect installation voltage used

Solution

Providing correct power will resolve the problem.

Reference: SPARC T5-2 Server Service Manual ( here )

Required power is a must for optimal system operation.
Input Voltage 200 - 240 VAC, 50-60Hz
Input Current 10.1A @ 200 VAC (max)
Input Power 1927.7W @ 200 VAC (max)

References

<NOTE:1676591.1> - Power source recommendations for Oracle T 5xx0, T3-x, T4-x, & T5-x servers

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