The MD600 has 2 drive bays and can be run in two modes (can only be change by Meridian support):

RAID 1: (Default) A mirrored pair, to improve availability should one disk fail.

RAID 0: Where the data is striped across both disks, doubles capacity but zero protection.

Pairs of 1, 2 and 3 TB drives work just fine, it's reported that it is good for up to 10TB drives but the largest manufactured is 4TB. I don't know of anyone running 4TB yet.

Although there is no need to move the audio files from your MC200, I would recommend it so they are all on the MD600 running RAID1. You can then switch off the storage and core in the MC200 and just use it as an audio end-point. Then at a later date swap it out for a MS200 or MS600 to improve audio quality.


Transferring the files is straight forward using Control:PC/Control:Mac, but does take a while; about 20 to 30 seconds per album each way.

1) Backup album files to an external disk *
2) Disable MC200 storage
3) Restore the Backup

Regards,
Carl

* You should be doing this anyway see, Lessons learned from almost losing data

861v6+ID40, HD621, 8000.2, 7200HC, 7200.2, SKYQ Silver, PS3, PDP-LX6090, QNAP TS870-Pro (8*6TB), Roon, iPadAir2.
[In Reserve] C15, MD600 (2*3TB), TwinStore RM (2*2TB)