Hello thanks for any input. I have read quite a bit. Thank you @IG-88 and @flyride for all the posts with useful information.   I currently have 1) synology 218+(apollo lake) with 2 Toshiba N300 NAS 4TB spinners,16 gig ram, running DSM 6.xx     2) Xpenology i7 2600k sandybridge, ASUS P8Z68-V PRO(4 sata 6gbs + 4 sata 3gbs + 2 esata 3gbs ports) 16 gig ram(it think there is 32 gig but only recog 16), 4 WD80ezaz11TD-ba0 spinners, 800 watt OCZ platinum PS, 120gb vertex ssd running