Hi there. I’m a happy owner of a new WD MyCloud PR4100 with four 10TB Red drives in it.
My first task after set-up is to copy about 5TB of data from a fairly old Drobo, then wipe the Drobo for another purpose. At the end of the two-day copying process I’ve gone in to check the files and compare them over the two devices. Most of the data seems to have copied successfully but with two or three very big folders (tens, maybe hundreds of GB), the folder on the PR4100 is much smaller than the original folder on the Drobo.
I am able to view hidden files and when I compare the two sets folder by folder and file by file, they appear the same. There are a few random ‘destop.ini’ files and those weird ‘.DS_Store’ things left by Macs, but otherwise the folders match.
So why would folder properties on the Drobo say it has 18,000 files and 200GB, yet properties on the PR4100 version reports 5,000 files and just 50GB of data?
Sorry if this is more a data or Drobo question than a WD phenomenon, but I’ve had help here in the past.