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dump area function

 
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thebeatlesguru
Regular Advisor

dump area function

i wanna know the detail about dump area function,please give me some guide.
hihi
4 REPLIES 4
Gnananandhan
Frequent Advisor
Solution

Re: dump area function

Dump device is configured to take a snap-shot of memory information when the system goes wrong - which is used to trouble shooting-. Primary swap will act as the dump device in default. you may have to configure dump device separately if the primary swap is less than the amount of RAM installed in the system, otherwise only a partial memory information alone will be stored.

Regards,
Gnana A.
If there is a better way to do it, find it !
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manoj_pu
Regular Advisor

Re: dump area function


Hello

Normally swap (/dev/vg00/lvol2) act as dump device unless you configure separate device for dump the content of memory when system crashes.

In the next startup after system crash system save the dump in /var/adm/crash as files named crash.0 crash.1 etc.

Rgds

Manoj
Leave with out tense and try best you gets result
Michael Tully
Honored Contributor

Re: dump area function

Hi,

The other guys have given you a good
explanation. The dump area is configured
in the /etc/rc.config.d/savecrash or
crashconf depending on your level of
operating system. For a properly
configured crash dump you need at least
a minmium of 50% of your actual system
memory that is being used. Usually I
set up /var for at 2Gb to do this function.
As i mentioned above this depends on the
amount of memory being utilised.

-Michael
Anyone for a Mutiny ?
Animesh Chakraborty
Honored Contributor

Re: dump area function

 
Did you take a backup?