Western Digital Reds or RE4 (RE4s are full-on enterprise drives with longer warranties but you’ll pay for the privilege). Seagate Ironwolf or Ironwolf Pro (Pros are the enterprise variant there)
Remember you’ll have very long rebuild times with a 4-drive RAID using 3/4TB disks so take that into account with your backup strategy…there’s a decent chance a RAID 5 will drop a second disk during its rebuild cycle and you’ll be up a creek. Get a large drive or two as local backup attached to the Synology’s USB ports so you can cover. Synology has good backup utilities. ---- Jack Kramer, Senior Consultant Small Type Computing - www.smalltype.net<http://www.smalltype.net> W: 855-765-8973 x101 - C: 248-635-4955 On May 19, 2017, at 12:30 PM, Jesse Rink <[email protected]<mailto:[email protected]>> wrote: Looking at a Synology DS916+ for a small customer… never really used Synology stuff before. Can someone recommend what drives I should look at getting? Looking for either 3TB or 4TB drives in the four-disk unit. Brand/model?? https://www.synology.com/en-us/products/DS916+ Jesse Rink Source One Technology, Inc. HP Partner 262 993 2231 Website<http://www.sourceonetechnology.com/> | Blog<http://www.sourceonetechnology.com/blog/> | LinkedIn<https://www.linkedin.com/in/jesse-rink> | Twitter<https://twitter.com/SourceOne_WI>

