Several readers have emailed to ask whether RAID-5 can be partitioned into multiple volumes. Indeed it can:
Note that OWC offers a RAID-5 edition of the Thunderbay, which comes with SoftRAID 5 included. The MPG recommendation for most users is to NOT use one large 12/15/18TB volume, but to “chunk” it into 4/5/6TB volumes that thus match 4/5/6TB single-drive external backup volumes, which has several operational advantages. See Using Cloning as a Backup Strategy.