TIP: Bug in AIX, Systems Director Common Agent (cas agent) ; root files up with bogus /dev file /dev/null 2>&1


If you have root filling up and see a bogus file in /dev:

-rw-r–r–    1 root     system         861 Sep 27 19:14 null 2>&1


Then you are having the following issue with the Systems Director Common Agent (cas agent).  reference:

Director Agent 6.2.1 on AIX Might Fill Up / Filesystem



Also, here’s good write up on how to check why root file system is full:

/ (root) overflow


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