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Alpha Server 4100

 
Sayed Shalaby
Occasional Advisor

Alpha Server 4100

Alpha Server AS4100 restarting every few days
20 REPLIES 20
Jim_McKinney
Honored Contributor

Re: Alpha Server 4100

Could be most anything, but, you might start investigating with

$ analyze/crash sys$system:sysdump.dmp
SDA> clue crash
SDA> exit

If you've got valid crash dump and the timestamp within is recent, post the output here.

The content of the system error log might also be interesting - perhaps you've got DECevent installed? If so, the following might reveal something interesting.

$ DIAGNOSE/EXCLUDE=(CONT,VOLU)/SINC=20-JUN-2008
Robert Gezelter
Honored Contributor

Re: Alpha Server 4100

Sayed,

The first question is: Why?

Is there a hardware problem? Power Problem? Software Crash?

When this answer is determined, then it is possible to isolate the specific problem.

- Bob Gezelter, http://www.rlgsc.com
Sayed Shalaby
Occasional Advisor

Re: Alpha Server 4100

Jim,
I'll start analyze the problem tonight, I'll post the answer
Robert
i have already changed both power supplies,
tonight i am going to change both CPU's
Robert Gezelter
Honored Contributor

Re: Alpha Server 4100

Sayed,

Personally, without error logs showing a CPU problem, I would not change the hardware.

Most hardware problems produce entries in the error logs.

Power supply problems can produce strange problems however.

- Bob Gezelter, http://www.rlgsc.com
Andy Bustamante
Honored Contributor

Re: Alpha Server 4100

Before troubleshooting the 4100, is there something else on the same power/ups that indicates a restart or continuous service?

That said, check for a crash dump and review error logs as previously noted.

Good luck,

Andy
If you don't have time to do it right, when will you have time to do it over? Reach me at first_name + "." + last_name at sysmanager net
Sayed Shalaby
Occasional Advisor

Re: Alpha Server 4100

Robert,
the crashdump summery information :
ssrvexcept, unexpected system service exception
failing pc:00000000 00000000
failing ps:00000000 00000000
crash/primary cpu: 00/00
Sayed Shalaby
Occasional Advisor

Re: Alpha Server 4100

Jim, Robert and Andy,
the crashdump summery information :
ssrvexcept, unexpected system service exception
failing pc:00000000 00000000
failing ps:00000000 00000000
crash/primary cpu: 00/00
Khairy
Esteemed Contributor

Re: Alpha Server 4100

hi sayed,

could pls post the following:

$ write sys$output f$getsyi("power_vector")
$ write sys$output f$getsyi("thermal_vector")
$ write sys$output f$getsys("fan_vector")

Rgds
Jim_McKinney
Honored Contributor

Re: Alpha Server 4100

> the crashdump summery information :


How about posting the entire output of "SDA> CLUE CRASH" as an attachment for a start? That little snippet isn't enough to determine anything...