Applies to ONTAP 9 Qtree Oplock CIFS Issue RISK Autosupport shows that oplocks have been disabled either on a cifs share or qtree level. There could be a performance impact as a result of not utilizin...Applies to ONTAP 9 Qtree Oplock CIFS Issue RISK Autosupport shows that oplocks have been disabled either on a cifs share or qtree level. There could be a performance impact as a result of not utilizing oplocks. POTENTIAL IMPACT Disabling oplocks could result in higher client ops and may lead to filer performance degradation.