thanks for your response.
As far as i see on the On Command System Manager, the aggregate containing the volume has 3,53 TB space left.
Total Space is 10,44 TB. Used Space is 6,91 TB.
May i extend the CIFS Volume using space from 3,53 TB of space left?
Therwe is a graphical tool to extend it instead of using command line?
Another point: i have just seen that my CIFS volume is replicated via SnapMirror to another Site (Site B).
May i extend the size of CIFS volume on Site A or this will cause problems on replica on Site B?