RAM disk size for work the NTLite cache

[ExDeF]

Hi!
What RAM disk size is needed for the NLTmpMnt folder: (install.wim, Windows 10, UUP Dump, ~4Gb)
After mounting in NTLite, in the properties of the NLTmpMnt folder:
Size: 14,8 Gb
On disk: 1,25 Gb - ???
NTLite compresses files, how does it work?

 

[garlin]

NTLite doesn't compress files in the NLTmpMnt folder, files are extracted just like any image mounted by normal DISM commands.

The difference is mounted images have thousands of hard links pointing back to WinSxS. If you're using File Explorer, then it cannot figure out which files are counted more than once in the same parent folder. The same problem also exists if you ask Explorer how big your live system's Windows folder is in size.

When guessing the RAM disk capacity, you need to factor in the size of the applied Language Packs, FOD's and CU's. A rough guess would be 4-5 GB as a starting point, because you're sizing for peak usage (during processing) and not the final image size. I've run low on free disk space on a normal disk before.