> Aren't the EARS drives the first ones using 4k
> sectors? Does OpenSolaris support that properly yet?
> From what I've read using the 512-byte emulation mode
> in the drives is not good for performance (lots of
> read/modify/write), though I don't know whether that
> could cause these kind of problems.

Yes, I think the 'EARS' series are the first WD consumer drives using the new 
4K sector 'Advanced Formatting':
http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-701229.pdf :
"Advanced Formatting
Technology being adopted by WD and
other drive manufacturers to increase
media format efficiencies, thus
enabling larger drive capacities.
(WDxxEARS and WDxxxxAARS
models only)"

I saw some discussion of performance and alignment, but it was in relation to 
Linux, perhaps it doesn't relate to Solaris?:
http://www.gossamer-threads.com/lists/linux/kernel/1039141

Cheers,
Simon
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