Chassis Code Keyword AC_UNDERVOLTAGE

[Carme Torca]

Hi,

I have this warning.
Does anyone knows what is it?
If I gos to MP:CM> PS its shows ok.

Power Status
---------------+-----+-----+-------+-----+
| | | | |
| Sys | | IO | |
|Bkpln|Cells|Chassis| BPS |
| | 0 1 | 0 1 | 0 1 |
---------------+-----+-----+-------+-----|
Populated | * | * * | * * | * * |
Enabled | * | * * | * * | * * |
Power OK | * | * * | * * | * * |
Warning/Fault | | | | |
Attention LED | | | | |


AC Line status:
Line A0 Present
Line A1 Present
Line B0 Present
Line B1 Present

Thanks a lot of,
Carmen.

>------------ Event Monitoring Service Event Notification ------------<

Notification Time: Sat Jan 27 13:21:42 2007

prometeo sent Event Monitor notification information:

/system/events/chassis/chassis_log is >= 3.
Its current value is MAJORWARNING(3).



Event data from monitor:

Event Time..........: Sat Jan 27 13:21:42 2007
Severity............: MAJORWARNING
Monitor.............: dm_chassis
Event #.............: 1837
MORE (you've seen 13%):
System..............: prometeo

Summary:
An undervoltage event has occurred on an input power line.

Description of Error:

Chassis Code Keyword AC_UNDERVOLTAGE.

An undervoltage event has occurred on an input power line.

The source ID field (02) in the above chassis code represents the cord
on which the undervoltage event has occurred.

On a Keystone / Matterhorn system:
0 - cord A0
1 - cord A1
2 - cord B0
3 - cord B1
Probable Cause / Recommended Action:

Cause:
A power cord has been disconnected.
MORE (you've seen 30%):

Action:
Re-connect the cord.

Cause:
A circuit breaker has tripped.

Action:
Determine and fix the cause of the trip, re-close the breaker.

Cause:
The power supplier is unable to supply power to your location.

Action:
Remedy with the power supplier, and or configure suitable backup power.

Additional Event Data:
System IP Address...: 165.198.223.4
Event Id............: 0x45bb43d600000000
Monitor Version.....: A.01.00
Event Class.........: System
Client Configuration File...........:
/var/stm/config/tools/monitor/default_dm_chassis.clcfg
MORE (you've seen 50%):
Client Configuration File Version...: A.02.00
Qualification criteria met.
Number of events..: 1
Associated OS error log entry id(s):
None
Additional System Data:
System Model Number.............: 9000/800/rp7410
EMS Version.....................: A.04.20
STM Version.....................: A.49.00
Latest information on this event:
http://docs.hp.com/hpux/content/hardware/ems/dm_chassis.htm#1837

v-v-v-v-v-v-v-v-v-v-v-v-v D E T A I L S v-v-v-v-v-v-v-v-v-v-v-v-v


Chassis Log Timestamp : 01/27/0x7d7 11:51:23
Chassis Code Encoded Field : 0x582008644101401f
Alert Level : 0x6 (Boot possible pending failure - action
required (e.g. boot disk error rate above threshold, power failure, overtemp
medium).)
Source FRU : 0x4 (power entity)
Source FRU Detail : 0x1 (AC mains)
Source ID : 0x1 (platform dependent)
MORE (you've seen 80%):
Event Detail : 0x4 (output undervoltage)
Caller Activity : 0x4 (monitor)
Caller Subactivity : 0x1 (AC main)
Activity Status : 0xf (implementation dependent)
Reporting Entity Type : 0x2 (power monitor)
Reporting Entity ID : 0x0 Cabinet 0x0 Cell 0x0 CPU 0x0
Data Type : 0xb (timestamp)
Message ID : 0 (not associated with other log entries)
Domain Name : Partition 0

Chassis Log Timestamp : 01/27/0x7d7 11:51:23


>---------- End Event Monitoring Service Event Notification ----------<

[Pete Randall · Accepted solution]

Carmen,

It certainly sounds like someone interrupted part of the power to the machine. Check the dignostics:

"An undervoltage event has occurred on an input power line.

The source ID field (02) in the above chassis code represents the cord
on which the undervoltage event has occurred.

On a Keystone / Matterhorn system:
0 - cord A0
1 - cord A1
2 - cord B0
3 - cord B1
Probable Cause / Recommended Action:

Cause:
A power cord has been disconnected.
MORE (you've seen 30%):

Action:
Re-connect the cord.

Cause:
A circuit breaker has tripped.

Action:
Determine and fix the cause of the trip, re-close the breaker.

Cause:
The power supplier is unable to supply power to your location.

Action:
Remedy with the power supplier, and or configure suitable backup power.
"

Something happened to cord B0 or the circuit to which it is connected was interrupted.


Pete

[Steven E. Protter]

Shalom,

"An undervoltage event has occurred on an input power line.

The message could be literal. I got messages like this on a rp5450 systems because the UPS was in bypass mode during a voltage drop from the power company.

SEP

[Jaime Bolanos Rojas.]

Carme,

Also please note that you can get that error because of the following reasons:

a momentary drop in AC incoming voltage,

a bad environment monitor board,

an incorrect parameter in EMS.

Regards,

Jaime.