Convince me to stay with ReadyNAS

jelockwood wrote:
I hear the comments about the need for SATA III for spinning metal hard disks and yet all such hard disks since about 2TB have been SATA III as standard.

The performance numbers are very clear - just check the drive reviews. The fastest 7200 rpm hard drives have peak speeds of about 225 MB/s. They don't exceed SATA II. New SSDs have peak speeds around 500 MB/s, which is starting to push the SATA III ceiling - and is why SATA 3.2 has a mode that goes up to 16 gbps.

I agree that for traditional drives SATA III is mostly specsmanship. Though SATA includes a few things beyond the bus speed - smaller connectors for 1.8 mm devices being one of several. http://en.wikipedia.org/wiki/Serial_ATA

Also, if you are using an SATA port multiplier, you have multiple drives sharing the same link - in that specific situation, SATA III speeds improve performance.

But for systems designed for RAID and gigabit ethernet access there is no real performance advantage, the only reason to implement it is to take questions like yours off the table.