french_guy Posted March 14, 2014 Share Posted March 14, 2014 I was thinking to buy a new motherboard with at least 6 SATA ports Do I need SATA III or II is enough? Quote Link to comment
whiteatom Posted March 14, 2014 Share Posted March 14, 2014 SATA 2 exceeds the speed of most green drives, and most normal operating array speeds, so very little is gained with SATA 3 connections. Quote Link to comment
garycase Posted March 14, 2014 Share Posted March 14, 2014 No, you don't need SATA-III. The ONLY time that transfers occur at interface speed is for transfers to/from the disk's buffer, which is a VERY tiny percentage of the time (well under 1%). No rotating platter drive even comes close to SATA-II speed in transfers to/from the actual platters ... not even on the fastest outer cylinders. An SSD is the only drive where a SATA-III interface would make a difference ... and if you're connecting the system to a Gb network, then even that won't matter, as your transfers to/from UnRAID will be limited by the network speed anyway. Quote Link to comment
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