Expanding LUN on Solaris

1) Unmount the filesystem
umount /testing

2) Comment the line in the /etc/vfstab

3) format
Enter disk number
format> type
AVAILABLE DRIVE TYPES:
0. Auto configure
...
Specify disk type (enter its number)[24]: 0

format> part
partition> print ( verify)
partition> label ( Label it)
partition> quit
format> label (label it)
format> verify ( to Verify)
format> quit

4) uncomment the line in the /etc/vfstab which was commented in the step 2
5) mount /testing
6) growfs -M /testing /dev/rdsk/c3t12d0s6 ( Which will grow the filesystem)