Hello DaveyG75, With Adapt raid uses raid 6 configuration 8+2.  If you were to calculate your space using raid 6, you can find out how much space you will have. Please let us know if you have any other questions.
Hello all, I'm trying to find some more information about the ADAPT RAID level with the ME4 Series. From what I can find ADAPT will set aside the capacity of your  2 largest drive for spare, however, what I'm having difficulty finding is the overall usable capacity of an ADAPT disk group. For instance, if I have a Disk Group of 50 - 1TB Drive, I know 2TB will be set aside for sparing but I can't find information on how much of that left over 48 is usable. If it was something like RAID 1 or 5 or whatever, I could easily calculate it out knowing how those store the data. I just can't seem to find anything like that for ADAPT.   Does anyone know? or could someone point me in the right direction?
ME4 ADAPT Usable Space Formula