What is your primary objective? Is it simply local pc backup and restore capability?
1) Sharing of files across a number of workstations;
2) Those files to be safe in event of a hardware failure
3) Maintainless process for the system performing 1 and 2 above.
I will set the workstations so documents are all saved to these drives and all pictures, videos, and other media files are available there. Thus the loss of the independent workstation hard drives is less of a concern that the above.
Thanks!