The new SSD Thread (Benchmarks, Brands, News and Advice)

[highlandsun]

You can order an eval unit from them... Choice of 64GB SLC or 128GB MLC.

http://www.sandforce.com/index.php?id=143&parentId=2

It's a pretty loaded enterprise design, with super-capacitor for emergency power backup.

[davepermen]

RAISE (Redundant Array of Independent Silicon Elements)


YAY FOR ACRONIMS!! I HAVE A RAISE-DRIVE IN MY PC!!

oh, and, battery? sounds like they have onboard cache to power? that may explain partially the nice random write iops?

[ronan_zj]

Power Consumption: Typical: 3.2W
Maximum: 7.96W

thos power consumption is huge!!!! for sanforce SSD

[newkleer]

oh, and, battery? sounds like they have onboard cache to power? that may explain partially the nice random write iops?

yes it would indeed. probably only writes data sequentially once it has a full block to do, so susceptible to power failure until that block is written. intel drive may even operate the same way just they dont publish it. certainly the way i imagined drives that do random->linear write remapping would work.

[chsin7]

Power Consumption: Typical: 3.2W
Maximum: 7.96W

thos power consumption is huge!!!! for sanforce SSD

This is for this "preview/test" SSD, which has a serial interface and a lot of debug stuff on board.

[highlandsun]

Power Consumption: Typical: 3.2W
Maximum: 7.96W

thos power consumption is huge!!!! for sanforce SSD

What part of "enterprise-class" do you not understand... It's not a production design, and it's not intended for mobile/laptops. I don't see these guys being a major force in driving down the average cost of SSDs.

[davepermen]

A little offtopic:

I just benched a ramdisk on one of my non-ssd computers. while the numbers are awesome and much higher than an ssd, the random read/write for 4kb are not that high. only a factor 10 or so for ssd's to catch up to be in similar playground. and it's not like ram has max-speed all the time, small random accesses have overhead, too..

still, i'd like an ssd with worstcase of 175MB/s

this is not really that actual or fast hw at all i'm testing here, i know. i'll test out on other configurations laters..

[monakh]

^^^ Nice, Dave!

Here's the crystal mark score for my express card 64 GB SSD. This SSD is a Wintec brand. It's rated read speed is about 30 MB/s. This is where I bought it from: http://www.newegg.com/Product/Produc...82E16820161318

You play, TR, Anniversary ? Just kidding!

Thanks a lot.

[IntelUser]

Daveperman, that's the thing though. DRAM is just like HDDs that even with low IOPS(comparatively) and random writes it has no particular weaknesses like flash memory does.

I don't think the Sandforce SSD has cache memory because that's what they say. And for the power consumption figures its really the controller only so its not that low either...

[chsin7]

I don't think the Sandforce SSD has cache memory because that's what they say. And for the power consumption figures its really the controller only so its not that low either...

Indilinx's Barefoot, doesn't have cache inside either. The cache (a 64MB DRAM chip) is outside the controller.

See photo @ http://www.anandtech.com/storage/sho...spx?i=3535&p=1 (elpida chip)