Hey Matthew,
RAID 1 for the production and a datastore on the 1TB for storing your templates etc.
Pros:
- Templates you can easily rebuild and the 1TB does not need to be redundant
- The Prod machines can be kept on a RAID 1 which will give you a backup if any of the drives fail (some always do BTW!)
Cons:
- You do not have redundancy on the Templates Datastore
- 1TB space is compromised on the RAID volume
- Backups need to be done for all VM's even if you do have a RAID configured!
Regards
a