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Date: Mon, 09 Jul 2012 14:43:43 +0100
From: Arthur Chance <freebsd@qeng-ho.org>
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To: Bruce Cran <bruce@cran.org.uk>
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Cc: freebsd-questions@freebsd.org
Subject: Re: YASSDQ
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On 07/09/12 13:38, Bruce Cran wrote:
> On 09/07/2012 11:31, Wojciech Puchar wrote:
>> All use 4K as it is NTFS default block size and most are sold to be
>> used with windoze.
>
> Apparently the Intel 320 SSDs use an 8KB page/block size.
>

 From a Crucial forum, thread about Crucial M4 SSDs, posted by a Crucial 
employee:

[http://forum.crucial.com/t5/Solid-State-Drives-SSD/Page-size-and-erase-block-size-for-M4-64GB-128GB-256GB-models/td-p/64403 
about half way down the page]

 > One correction to the information here. The page size is based on 
the > density of the NAND not the process geometry. The 64GB and 128GB 
m4’s > utilize NAND with 4K page sizes and the 256GB and 512GB m4’s 
utilize > NAND with 8K pages.

Looks like larger SSDs have larger block sizes.