Old removed drives from pool have folders and files left on them is this normal.

[Ian Spencer]

Healthy pool and add new larger drive and remove older small drives. 

The older drives seem to have a folder like PoolPart.a14e8a9a-cab4-4413-81d4-029254f50b28 and some files left over. 

When I have a good look it seems the only files left are ones in duplicated folders. 

Is this normal. 

My guess when removing drives from a pool if the files are duplicates the drive has non duplicate files in the folder moved to other drives in the pool.

If their is a original file in the pool then the pool accepts moving the file is redundant and just creates a new duplicate file or folder.

This leaves removed drives with a folder and files that were duplicates on the old drive removed from the console. 

Is this correct. 

I have over 60 TB of data so its not easy to just check with so many files. 

 

[Christopher (Drashna)]

When removing a drive from the pool (using the UI), it checks the files on the pool, and based on the options, moves files.     All of the pooled data is in the hidden PoolPart.xxxx folders.   Unduplicated data is moved during a removal.   Duplicated data is moved unless the "duplicate data later" option is enabled.... and in this case, only data that is unique to that drive (eg, unduplicated data on the drive, and any duplicated data that may only be on that drive) is moved off of the drive.   Once the drive is removed, a duplication pass is triggered, so that the data can be reduplicated. 

The process is outlined in the manual: https://stablebit.com/Support/DrivePool/2.X/Manual?Section=Removing a Drive from the Pool