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HPMC/LPMC

 
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santosh jha
Frequent Advisor

HPMC/LPMC

Can anyone explain me about HPMC/LPMC error.

What do we need to do if the server crashes with this error.

Regards

Santosh Jha
5 REPLIES 5
Jeff Schussele
Honored Contributor
Solution

Re: HPMC/LPMC

Hi Santosh,

HPMC = High Priority Machine Check - This almost always causes a crash & the resulting file is used by HP to determine root cause

LPMC = Low Priority Machine Check - an alert more or less & won't cause a crash. These are usually something like a correctable memory parity error. But can frequently point out an upcoming possible larger problem.

HTH,
Jeff
PERSEVERANCE -- Remember, whatever does not kill you only makes you stronger!
Arunvijai_4
Honored Contributor

Re: HPMC/LPMC

For HPMC, take a look at your /var/tombstones/ts99 file. Also, look at var/adm/shutdown.log for any discrepancies.

-Arun
"A ship in the harbor is safe, but that is not what ships are built for"
Arunvijai_4
Honored Contributor

Re: HPMC/LPMC

LPMC, take a look at this threads,

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=713223

-Arun
"A ship in the harbor is safe, but that is not what ships are built for"
Muthukumar_5
Honored Contributor

Re: HPMC/LPMC

Machine Check is differing as,

IPF-based Systems

Machine Check Abort (MCA)
Corrected Machine Check (CMC)

PA-RISC-based Systems

High Priority Machine Check (HPMC)
Low Priority Machine Check (LPMC)

More details:

http://docs.hp.com/en/J2237-90005/ch06s04.html
http://docs.hp.com/en/diag/ems/emd_lpmc.htm

hth.
Easy to suggest when don't know about the problem!
Bill Hassell
Honored Contributor

Re: HPMC/LPMC

If your machine crashes with an HPMC error, it is almost always a hardware failure and HP will have to replace a failing part. LPMC are usually 'correctable' errors such as single bit errors in RAM which are automnatically corrected and seldom cause a crash.


Bill Hassell, sysadmin