Hi,   I am using SAS University Edition with VM Virtual Box. I have a 8GB dataset (17million observations and 72 variables). When I try to run proc surveymeans, I get the following error message.   Insufficient space in file WORK.'SASTMP-000000042'n.UTILITY. ERROR: File WORK.'SASTMP-000000042'n.UTILITY is damaged. I/O processing did not complete.   My program is:   proc surveymeans data=nrd16.NRDcore1 missing sumwgt sum mean; domain cirrhosis; strata NRD_STRATUM; cluster HOSP_NRD; weight DISCWT; var LOS; run;   Is there any way to expand my work space or get around this problem?  Thank you for your help! ... View more