What types of SSDs to use.....

[Tom Evans]

On Thu, Feb 20, 2014 at 2:09 PM, Willem Jan Withagen <wjw at digiware.nl> wrote:
> On 20-2-2014 14:06, Steven Hartland wrote:
>> The "disconnect" issue is generally related to Sandforce based devices.
>>
>> Its a lot better on later devices / firmware and does depend on the
>> controller / MB they are connected to.
>
> Any easy way to detect these? Or is it just a matter of reading the
> specsheets? Hoping that the controller chipset is mentioned.
>

You can tell the old (SF-2000) chipset devices from their advertised
read and write speeds - read will be 500+MBs, write will be
200-300MBs. This is because the "read speed" assumes you will be
reading compressible data.

I would avoid SF based drives if you can, I have had horrific
experiences with OCZ Vertex 4 SSDs where they basically lock up if you
do non-sequential access. Having said that, there are two parts to it,
the controller and the firmware running on the controller; Intel SSDs
using SF controllers, like the Intel 530, don't have such a bad
reputation.

Looking on wikipedia or tech review sites for a specific SSD should
let you know what controller it uses, if it is not listed in the tech
specs. I replaced my OCZ drives with Crucial M4, which use a Marvell
controller.

Cheers

Tom