Hi
AOS 5.5.2
HypervisorNutanix 20170830.120

From one of several nodes A warning alarm occurs.
The message is as follows.

Detailed information for disk_usage_check:
Node xxx.xxx.xxx.xxx
WARN: /home usage at 84% (greater than threshold, 80%)
Refer to KB 1523 (http://portal.nutanix.com/kb/1523) for details on disk_usage_check

I checked that node into CVM.
I deleted the download file used for the upgrade, but it is still 82%, but I do not know what to clean up.
I want to know the solution.
Or should I open the case? I wonder.

Please ask for advice.
Thank you.