On Apr 15, 2009, at 8:28 AM, Nicholas Lee <emptysa...@gmail.com> wrote:
On Tue, Apr 14, 2009 at 5:57 AM, Will Murnane
<will.murn...@gmail.com> wrote:
> Has anyone done any specific testing with SSD devices and solaris
other than
> the FISHWORKS stuff? Which is better for what - SLC and MLC?
My impression is that the flash controllers make a much bigger
difference than the type of flash inside. You should take a look at
AnandTech's review of the new OCZ Vertex drives [1], which has a
fairly comprehensive set of benchmarks. I don't think any of the
products they review are really optimal choices, though; the Intel
X25-E drives look good until you see the price tag, and even they only
do 30-odd MB/s random writes.
Couple excellent articles about SSD from adandtech last month:
http://www.anandtech.com/showdoc.aspx?i=3532 - SSD versus Enterprise
SAS and SATA disks (20/3/09)
http://www.anandtech.com/storage/showdoc.aspx?i=3531 - The SSD
Anthology: Understanding SSDs and New Drives from OCZ (18/3/09)
And it looks like the Intel fragmentation issue is fixed as well:
http://techreport.com/discussions.x/16739
It's a shame the Sun Writezilla devices are almost 10k USD - seems
there are the only units "on the market" that (apart from cost) work
"well all around" as slog devices - form factor, interface/drivers
and performance.
What about the new flash drives Andy was showing off in Vegas? Those
looked small (capacity) - perhaps "cheap" too?
How much of an issue does the random write bandwidth limit have on a
slog device? What about latency? I would have thought the write
traffic pattern for slog io was more sequential and bursty.
Nicholas
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