Re: [Avid-L2] Consolidating Music Clips to Nexis increases their size 50% to 300%

There are a couple things taking place.
The smallest block in local storage is likely 4KB. With a Scale Out storage group the smallest block is 512KB and 1024KB with High Performance Storage Group. 
With a scale out storage group if the file is 512KB or less it will use 512KB on the disk. 
Then the parity protection is added to this.
Unlike ISIS where the parity was taken off the top - it wasn't ever available; a 64TB ISIS 5500 has 44TB of usable space. With NEXIS each workspace can have a different protection type, including unprotected so you will see parity along with the 512K or 1024K block size.

As a rule, 2 Disk Protection on disk is best case is 20% for parity on all large files. For files, less than 512KB size it can be as much as 66%.

NEXIS 2019.2 fixed an issue in Windows where it was reporting the wrong file size; it was rounding the size up to next full stripe size.

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