If you’ve ever made the mistake of making a directory on an Isilon cluster with the wrong path but the directory contains huge amounts of data. What you need is the correct ISI command.
This is the one you need:
isi job jobs start --type=treedelete --paths="</ifs/data/directory-path"
This will work wonders on the Isilon cluster as it is multi threaded and is much faster than running rm -rf on a node.