rwali...@washdcmail.com wrote:
On Feb 28, 2010, at 11:51 PM, rwali...@washdcmail.com wrote:
And what won't work are:
- Intel X-25M
- Most/all of the consumer drives prices beneath the X-25M
all because they use capacitors to get write speed w/o respecting cache flush requests.
Sorry, meant to say "they use cache to get write speed w/o respecting cache flush
requests."
--Ware
Actually, the bigger strike against the X-25M and similar MLC-based SSDs
is their relatively poor small random writes performance.
I'm pretty sure that all SandForce-based SSDs don't use DRAM as their
cache, but take a hunk of flash to use as scratch space instead. Which
means that they'll be OK for ZIL use. OCZ's Vertex 2 EX and Vertex 2
both use the controller, but they'll not be available for another month
or so, in all likelihood.
http://www.techspot.com/review/242-ocz-vertex2-pro-ssd/
Also, it looks like the Vertex Limited Edition is SandForce-based, too.
http://www.legitreviews.com/article/1222/2/
Though, according to the article, without the capacitor, you still might
loose some data stored in the SandForce controller's internal buffer.
--
Erik Trimble
Java System Support
Mailstop: usca22-123
Phone: x17195
Santa Clara, CA
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