OpManager Daily Server Disk Usage Giving Inaccurate Space

OpManager Daily Server Disk Usage Giving Inaccurate Space

Greetings, I am using OpManager build 8050 to monitor my VMware servers. I had scheduled a daily report that shows the total capacity and usage, as well as available disk spaces of each drives for my VMware servers. The reports shows inaccurate value of the sizes, the difference is a few GBs but on one instance a server's drive had a different of 30GB. The free space showed in Disk Management of the server in VMware has 50GB, but from the OpManager report it shows 80GB of free space. Is there anyway to work around this issue? Will updating to latest build version solve it?

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