DXC Technology System Administrator Interview Questions, Process, and Tips

To check server performance, monitor CPU, memory, disk usage. Use tools like top, htop, iostat. Check logs for errors.

• Monitor CPU usage with top or htop command

• Monitor memory usage with free or vmstat command

• Monitor disk usage with df or iostat command

• Check logs for errors related to the application

• Use performance monitoring tools like Nagios or Zabbix

To activate a Volume Group or LV, use the vgchange or lvchange command.

• Use the vgchange command to activate a Volume Group.

• Use the lvchange command to activate a Logical Volume.

• Specify the name of the Volume Group or Logical Volume as an argument.

• Use the -a y option with vgchange to activate all Volume Groups.

• Use the -a y option with lvchange to activate all Logical Volumes in a Volume Group.

To present a SAN LUN to Solaris LDOM or CDOM, we need to follow a few steps.

• First, we need to identify the SAN LUN and the target LDOM/CDOM.

• Then, we need to create a logical device using the format command.

• Next, we need to configure the LUN using the cfgadm command.

• Finally, we need to add the LUN to the LDOM/CDOM using the ldm add-vdsdev command.