Disabling dmp_monitor_osevent using vxdmpadm settune command is not persistent across reboot on Solaris platform

Problem

Disabling dmp_monitor_osevent using vxdmpadm settune command is not persistent across reboot on Solaris platform.

Error Message

After dmp_monitor_osevent is disabled using vxdmpadm settune, rebooting the system will have the parameter enabled again.

Cause

In Storage Foundation version 5.1SP1 to 6.0 on Solaris platform, the following commands are found in the /lib/svc/method/vxvm-startup2.

#Prevent OS device attach events from esd if powerpath is present
pp_present=`modinfo | grep emcp | wc -l`
if [ $pp_present -gt 0 ]
then
        /usr/sbin/vxdmpadm settune dmp_monitor_osevent=off 2> /dev/null
else
        /usr/sbin/vxdmpadm settune dmp_monitor_osevent=on 2> /dev/null      ## dmp_monitor_osevent is turned on if EMC Powerpath driver is not loaded
fi

Because of the statement found in the else clause, the dmp_monitor_osevent is turned on explicitly, even if EMC Powerpath driver is not loaded.

Solution

The problem is fixed in Storage Foundation 6.0.1 onward on Solaris due to the following change to the code in /lib/svc/method/vxvm-startup2:

#Prevent OS device attach events from esd if powerpath is present
pp_present=`modinfo | grep emcp | wc -l`
if [ $pp_present -gt 0 ]
then
        /usr/sbin/vxdmpadm settune dmp_monitor_osevent=off 2> /dev/null
fi

Starting from VxVM 6.0.1 dmp_monitor_osevent will not be turned on if EMC Powerpath driver is not loaded.

Applies To

The problem affects Storage Foundation versions 5.1SP1 to 6.0 on Solaris platform only.