Qtree names can be no more than 64 characters in length. In addition, using some special characters in qtree names, such as commas and spaces, can cause problems with other Data ONTAP capabilities, and should be avoided.
The following characters should be avoided in qtree names:
Spaces in qtree names can prevent SnapMirror updates from working correctly.
Commas in qtree names can prevent quotas from working correctly for that qtree, unless the name is enclosed in double quotation marks.