If the target LUN is larger, there are two steps to use the extra space after migration…   1.) In properties, the LUN itself will show up with a current size equal to the old LUN’s size, you will need to change it to Max size.  2.) Then you can go to windows and extend the partition with Disk Management, Diskpart, or a 3rd party tool.  If the LUN is participating in Snapview (snaps or clones) or Mirrorview sessions, it will not let you change the LUN size in properties. Those relationships will need to be removed.  Richard J Anderson
Hello,   We recently purchase some SATA drives for our CX-4.  We have a 800GB LUN setup for file/e-mail archiving on fibre channel drives.  I would like to use san copy to copy the data to a 800 GB LUN on the SATA drives (all within the same storage system).  What is the best configuration to do this?
San Copy LUN to LUN