crash dump
hi,
i wish to force a crash dump on a vcs node.how should i perform it?
should i failover first the service group or no?
then i force the crash dump on this node.
if i do not failover the service group,then:
-if the node where i forced the crash dump will shutdown,then if i like to start the service group on other node-i should import forcefully the disk group and maybe other cleanup things for the application to start.
-if the node where i forced the crash dump reboots,and join to the vcs,then the service group will be brought up on this node automatically.
please comment.
tnx so much.
Hello,
What is the reason of forcing a crash dump ?
Usually crash dump is performed to get current state of memory pages ... if there is a problem existing, then you take a crash dump so that same can be analyzed for the problem.
If you switch service groups, & if problem doesn't exist on server, then crash dump will be of no use ...
You have options in solaris like Savecore -L to take a live core (not a preferred choice though) .. otherwise you can use methods like sync or halt -d to generate dumps ..
G
