Hi all

 

I was wondering whether anyone else has noticed this before and can offer any advice.

 

I was checking a backup of my UnRAID data and from a Windows 10 PC I "selected all folders" in a Windows File Explorer instance and then did a right-click and properties.

 

I wanted to see the size of the data being backed up and I was surprised to see such a massive difference between the actual size of the data and the amount of space, reportedly, being used on the disk. It said that the size was 396Gb and the space being used on the disk was 574Gb (see attached image). Obviously these sizes always differ bacause of the way the disk is formatted and the cluster sizes... but was still amazed to see nearly a 50% additional space, supposedly, being used.

 

The UnRAID box I am using has evolved over time and been upgraded... so I am wondering if this has something to do with it - or whether I should check the sizes (if you can) in midnight commander?

 

The UnRAID server is an HP Microserver (Gen 8), with 3 x 4Tb and 1 x 3Tb Western Dig Red disks (11Tb usable space). The file system is REISERFS. I have wondered about how to get this updated to XFS, but not having a spare 12Tb device lying about I will struggle to copy all the data off the box, rebuild it and copy back 🙄

 

Any thoughts would be appreciated.

 

 

What I suspect (I don't have WIN10) is happening is that it is reporting the free space on the disk (or the share, in question).  Log onto this server.  Now to go Shares,   And click on the 'Compute' under the 'Size' column.  Wait while it does this and see if things make a bit more sense.  

 

Next thing, you don't need a 12TB drive to convert to XFS formatting.  You need about 3TB of storage space as you only convert one disk at a time.  It is well worth while doing as REISERFS is dead.  (Its developer is serving a life sentence for murder.)   It has several problems with larger sized disks and almost full disks that will never be addressed.  While it might not be an issue for you now, it will take much less time to convert now than at some period in the future when you have even more data to move. 

Likely related to this:

 

1 minute ago, Frank1940 said:

You need about 3TB of storage space as you only convert one disk at a time.

Thanks Frank... the largest disk is 4Tb, so as I have a USB 4Tb disk which is spare, I may find a wiki on how to do this and then convert one disk at a time 🙂

 

I forgot about the compute options under the shares tab - and interstingly when I check it here, it shows as 504Gb - this is spanned over 3 disks;

 

Disk 1 (4Tb size) - 125Gb (568Gb free)

Disk 2 (4Tb size) - 322Gb (977Gb free)

Disk 3 (3Tb size) - 48.1Gb (177Gb free)

 

So it still doesnt correlate to Windows... although 504Gb is closer to the "size on disk" information from Windows!

 

Anyway, I think I need to read up how to convert to XFS and not worry too much about this.

 

Thanks for the advice.

2 minutes ago, johnnie.black said:

Likely related to this:

 

Thanks Jonnie - looks like that's it... maybe I should roll back to Windows 7 for the moment 🤣

 

Seriously though - thanks and I'll worry about my XFS conversion for the moment LOL