Situation: We have a server that has a 40GB SAN (Fiber Channel) mounted as /opt/application.
If the LUN is expanded to 60GB, what needs to be done to expand /opt/application on the RHEL-server to 60GB having only 1 LVM partition?
One option is adding a second LVM partition with fdisk and using lvextend to add this partition, but what if we want to stick to having 1 LVM partition on the disk?
What is the best way to expand the LUN from 40GB to 60GB? An unmount is possible if necessary, it's better than adding a second LVM partition and using lvextend.