FAQs Access and authentication The frontend I am trying to log on does not respond I get "No Kerberos credentials found" error after submitting the script I cannot access storage directories despite being logged in on a frontend Computing Running job mysteriously disappeared from qstat -u command My running job is coming close to walltime, can I prolong it? I get "permission denied" when I try to clean up scratch directory Is there any tool to help me setup syntactically correct qsub command? I get an error "^M: command not found" or "$'\r': command not found" after submitting a script qdel command does not delete a job What are the default parameters in qsub command? My jobs are in the "M" state. What does it mean? Managed computing services What are Managed computing services, do I need a special login? Grid infrastructure I want to use NVIDIA DGX H100 hardware, what do I need to do? Data I accidentally deleted a file/directory on storage, can I retrieve it? Are SCRATCHDIR directories backed up somewhere? How reliable/strong is the is backup policy on storages? Where should I keep my longterm data? I need more space on storage(s), can I get it? Software Where can I find list of all installed software? There are several version of one software, which one shall I use?