I have read over
Also would add that the Linux server in question is in fact a VM running under VmWare.
Looking at the disk and usage under VMWare confuses the issue even more as none of the number being reported there are anywhere close to either the Linux usage report or the Nimble usage report.
From VMWare its showing 3.3TB used out of 3.5TB with 174GB remaining free..
The data stored in your Linux volume is only taking ~50% of the space within your VMware volume. However, the VMDK files which make up the VMware volume are taking ~95% of the storage within that Nimble LUN.
If you are certain that your VMware volume is not going to grow further, you could concievably raise the alert percentage (or even disable the alert), but you might want to wait for a more qualified person to answer before doing that.
Hopefully that helps!
Eric, fellow Nimbler