Sandforce Life Time Throttling

[gojirasan]

IIRC, Tony has stated that the Vertex LE is the only SandForce drive which has a completely transparent SMART statistic for life throttling. As in it will actually tell you explicitly when it is in the throttled state. Unfortunately I don't think he said which SMART attribute it was. But I already see some interesting ones there like "wear range delta". Instead of running Anvil's app for a long time, you could just run it for a short time to see if the drive does anything interesting. The SF-1500 was considered "enterprise" class I believe. So it could be interesting for getting a better look up SandForce's skirt. How much would you be willing to abuse it in the name of science? I'd at least take a close look at every smart value you can find and see how they change with use.

[Ao1]

@ gojirasan. SMART Attribute 230 (E6) will tell you if the drive is throttled, but that attribute is hidden from view. Seems that is the case for the LE as well.

It seems that 0fill is quite literally 0 fill on the NAND. Need to do some more checks, but it seems all the SF records is 0 x # 0's. (a few bytes of data)

All you are benching is how fast the SF processor can work with zero's.

@ Comp, your workload shows that you are hardly getting any benefit from compression. You are also writing a lot! 3.92GB per power on hour.