Saving Core's, Crashes, and Dumps.

[fg_1]

All

I was wondering how to ensure that all of my systems are setup to save crash and dump information when it occurs. I was also wondering if there was a way to specify that all core files are sent to a specific filesystem.

We have created on all systems a /var/adm/crash area that is 5% larger than the amt of physical memory we have installed on each system. Is this a good rule of thumb or a'm I in need of increasing these?.

Thanks in advance.

[Sridhar Bhaskarla · Accepted solution]

Hi Frank,

I am sure you have modified your /etc/rc.config.d/savecrash file and also configured your dump device enough to take the dump.

To get a good picture of your dump size, you can do a crashconf -v

Get the Total pages included in the dump and multiply with 4 (the page size) to find how much it is going to dump.

-Sri

[Christopher McCray_1]

In /etc/rc.config.d there is a file named savecrash(11.0) or savecore (10.20). In this file you can specify where the crash directory is as well as turning the savecrash flag on or off.

As for you second question, it depends. It should be plenty as it doesn't require much space anymore for a dump.

Hope this helps.

Chris

[Uday_S_Ankolekar]

Hi,

Check this

http://us-support.external.hp.com/cki/bin/doc.pl/sid=771e447e06e85c8f14/screen=ckiDisplayDocument?
docId=200000049395343

-USA..

[Uday_S_Ankolekar]

There was an error in the thread ..Here you go

http://us-support.external.hp.com/cki/bin/doc.pl/sid=771e447e06e85c8f14/screen=ckiDisplayDocument?
docId=200000049395343

[Sanjay_6]

Hi Frank,

Here is some info on crash dump,

http://us-support2.external.hp.com/cki/bin/doc.pl/sid=a9f05bfe006efa51d2/screen=ckiDisplayDocument?docId=200000024624577

http://us-support2.external.hp.com/cki/bin/doc.pl/sid=a9f05bfe006efa51d2/screen=ckiDisplayDocument?docId=200000054664128

http://us-support2.external.hp.com/cki/bin/doc.pl/sid=a9f05bfe006efa51d2/screen=ckiDisplayDocument?docId=200000048727998

Hope this helps.

Regds

[Uday_S_Ankolekar]

It looks like my browser is screwing up the threads..
Hope it works this time

http://us-support.external.hp.com/cki/bin/doc.pl/sid=771e447e06e85c8f14/screen=ckiDisplayDocument?docId=200000049395343

[Deshpande Prashant]

HI
Entry in /etc/rc.config.d/savecrash file for SAVECRASH_DIR will be needed for you dump configured.

The command #crashconf -v will give you current dump configuration.

Thanks.
Prashant.

[fg_1]

Thank you all. Excellent information as always.