Here is a great find for any graphic designer or Photographer. this is what i use for all my mass storage's now ! better than drobo and WD clouds. lower cast also.
1 Disk station and 2 hard drives 4 tb of redundant drive protection (1 drive can fail)
*before tax and shipping
or go larger Synology 4 bay NAS DiskStation DS416slim (Diskless)
and you will need to order 4 hard drives
This will give you 8TB of space with DS218j or 20TB with 4 drives in the DS416 running the proper raid*