Creating some test LUNS on Netapp thinking that once the test was successful we can expand it , please keep these limitations in mind while creating a LUN
if we create a LUN less than 50GB we can re-size it to a MAX of 502G
To check this go diag mode and use command lun geometry followed by path.
FAS786> priv set diag
FAS786 * > lun geometry /vol/fbtvol/fbtlun
There you will find a field called MAXIMUM RE-SIZE which tells the possible max resize for that particular LUN.