Dave,  The main problem has been people writing scripts on the cluster to do things.  Since the underlying structure is BSD,  people use cron and utilities to do stuff on the cluster itself.   In some of these cases, customers have filled key directories and caused the cluster to go down, or deleted key config file scripts, or the script executed commands and deleted data they did not want deleted.   Basically, there are no guardrails when you execute cron scripts.    So the general statement from support is - treat this as an appliance that shouldn't be altered and there are too many permutations to support so support is looking to protect the supportability of the system.  Hope you understand  Thank Christian
I have several customers that because of their workload are running scripts inside the nodes in order to erase data from the cluster. The problem we have explained to then is basically that this breaks support policy.  What I want to know is if anybody is running any scripts outside the cluster or any other method that you use to purge the FileSystem from unused files?
Erasing data on Isilon