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Old April 12, 2011, 02:46 PM
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JimboToronto JimboToronto is offline
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I'm not sure how you intend to connect the eSATA SSD to the laptop. Does the laptop have a built-in eSATA port? If so, does BIOS allow you to boot from it?

Most laptops only have single SATA connectors for their internal drives so the only feasible way to connect a second HDD or SSD is through an Expresscard eSATA controller. Unfortunately my testing has revealed that Expresscard bottlenecks transfers even worse than regular 1x PCIe (90MB/s writes and 120MB/s reads versus 100MB/s writes and 127MB/s reads).

Obviously there's not much advantage to be gained by choking an SSD down to HDD speeds.

A better route would be to install your boot SSD internally (assuming the port is SATA2 and not SATA1 which would limit the SSD to HDD sequential speeds anyway) and connect the slower bulk storage HDD through the slower Expresscard or even ridiculously slow USB2.

If you have a reasonably fast SATA SSD (Indilinx or faster) at your disposal, try connecting it externally and running a few benchmarks. That should help clarify matters.
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