I thought I posted this a few days ago, but I can't find it anymore, so maybe it didn't go through. 

 

I'm coming from a Drobo, which had a limit of 16TB per volume. I filled this up and despite physically having more than that in terms of available space on the Drobo NAS, Windows said the drive was full. I believe that to be a file system volume limitation, and am about to enter the unraid universe after much research

 

My question is, willl this be of any help to me? How can I go about having large volumes of larger than 16TB, while each mapped drive only will approach 10TB max (much less on most of them), the amount of free space Windows sees, appears to be the same for all the mapped drives. I believe this has to do with sector size and how Windows sees it, but thats about as far as my knowledge goes. 

 

Unraid shows the file system as XFS, but Windows shows NTFS. I thought this would be the same file system.....

 

 

Unraid has no such limitations. Unraid supports XFS and BTRFS for file systems. 

 

 

If you'd upgraded the firmware on your Drobo, you'd have a 64TB volume.

14 hours ago, SpencerM24 said:

Unraid shows the file system as XFS, but Windows shows NTFS.

Your Windows PC doesn’t “see” your actual disks.  It “sees” an unRAID share exported to your local network via SMB - so there is a translation layer in the middle.  And as others have mentioned, those shares don’t have the limitation of your Drobo.

The only Limit I can think of is a single file can not be larger than any of your largest drive. 

Meaning if your attempting to write a 8TB file to your array your largest drive better be at least 8TB because unRAID does not span single files over multiple drives. 

 

However I've seen many people here with 100TB or some other volumes of available storage.