I use SAS University Edition on my Mac.   I am running a big file about 27G now. My code run well yesterday when dealing with a 24G big data file. Here is my code: (hg01merged is the input big data)   libname HG '/folders/myfolders/'; options user = HG; proc sort tagsort data=_temp0.hg01merged out=hg.newmm reverse; by party_id company country exp_imp shipment tel; run;   Today I encounter this problem but it worked well yesterday. ERROR: Insufficient space in file WORK.'SASTMP-000000031'n.UTILITY. ERROR: File WORK.'SASTMP-000000031'n.UTILITY is damaged. I/O processing did not complete.   I tried reinstall the SAS U Edition as mentioned here: https://communities.sas.com/t5/SAS-Studio/ERROR-Insufficient-space-in-file-WORK-SASTMP-000000096-n-UTILITY/td-p/406784 But it does not work. The remaining space in my share folder is about 152G on my Mac which should be enough. Can anyone help me out of this? Thank you so much. ... View more