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Hard disk space increase

john masterton
on
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Last Modified: 2017-11-07
Hi tricky one (for me).

I have a few systems needing to have 20% free hard disk space.
The systems are already in use and I cannot delete files.
So the Final total size of each disk must have 20% free.
Not as simple as getting a 39GB Drive and clearing 20% on it, since there is (for example) already 6GB in use..
I tried to write an excel formula, but I'm not sure this is straightforward. Can some one help.
I have been given figures for: 1. total disk space 2. Free space (GB) 3. Free Space (%) and I need to increment the hard disk size (new total) to have 20% free.
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