Over at Itproportal.com they ran an interesting test of 5 WD Red "NAS" drives versus the original configuration of Samsung and Seagate drives in a Synology 1812+ NAS. This is an interesting test because the author substituted the five WD Red drives for the original drives and ran some tests. The speed test shows a decent improvement in speed:
The original hard disks hit a write speed of 83MB/s, and a read speed of 71MB/s. The WD Red drives mustered a write speed of 107MB/s, and a read speed of 100MB/s. Even though the original drive configuration gave us some of the highest performance numbers for an SMB NAS that we’ve tested, performance got even better with Western Digital's Red drives.
It certainly looks like the Red drives might be worth the additional (modest) cost since they show improved speed and should provide more reliability for 24/7 operation of a NAS.
- Western Digital Red Drives for NAS Devices Reviewed (nas-pro.com)
- Western Digital Red review (itproportal.com)
- What Hard Drive Is Best for My Synology NAS? (nas-pro.com)