SF 2281 drive with 180GB capacity

[myaccount]

Hi
I posted this over at the corsair support forums, but didn't get the answer I wanted, so:
Does anyone have any detailed info about the performance or memory layout of the corsair force 3 180GB?

I found that the 120 gb model uses 16 nand devices with one die each and that the 240gb model also has 16 devices, but each device has two dies(similar to the ocz agility series). This does seem to have an impact on the performance of the drives. In both these cases there is exactly 2 devices per channel in the controller, and all the nand devices are identical. But since 192GB is not a power of 2, the layout of the 180GB model does not seem as obvious.

Should I be worried that the layout might be non-ideal?(e.g. only uses 6 of the channels or something)

 

[Emulex]

what if its just a 240gb that has a bad chip or two? kinda like the 3-core AMD cpu? no need to throw the junk out just don't use the bad portion bringing yield up 🙂

 

[groberts101]

i would guess it's a 6 channel iteration of the typical 8 channel setup.

6 x 32 gigs per channel = 192 gigs minus the normal OP of these SF drives which should = the advertised 180GB.

PS. don't get it twisted just because ATTO spec's will be rated as similar though.. just like the SF 1xxx series drives at that capacity point.. they WILL be slower with random and incompressible streams. The 120GB Force GT drive would squash the performance of that model. And the Vertex 3 Max IOPS would squash both. And if you can't stand the thought of an OCZ SSD in your system then go with another version of the toggle nand SF-2281 drives.

 

[myaccount]

i would guess it's a 6 channel iteration of the typical 8 channel setup.

6 x 32 gigs per channel = 192 gigs minus the normal OP of these SF drives which should = the advertised 180GB.

PS. don't get it twisted just because ATTO spec's will be rated as similar though.. just like the SF 1xxx series drives at that capacity point.. they WILL be slower with random and incompressible streams. The 120GB Force GT drive would squash the performance of that model. And the Vertex 3 Max IOPS would squash both. And if you can't stand the thought of an OCZ SSD in your system then go with another version of the toggle nand SF-2281 drives.

The only reason I wanted the 180GB model is that I think it is about the amount of space I will need, but if it is significantly slower I guess I am going to buy a 120GB or the 240GB model instead(or possibly the 160GB intel ssd 320). But thanks for a helpful answer.