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Date: Mon, 9 Jul 2012 07:54:02 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
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	(wonkity.com [127.0.0.1]); Mon, 09 Jul 2012 07:54:02 -0600 (MDT)
Cc: freebsd-questions@freebsd.org, Graham Bentley <admin@cpcnw.co.uk>
Subject: Re: YASSDQ
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On Mon, 9 Jul 2012, Wojciech Puchar wrote:

>> Notes:
>> 
>> 1. SSDs don't necessarily use 4k blocks, some use larger ones. Starting the
>
> All use 4K as it is NTFS default block size and most are sold to be used with 
> windoze.

No.  For example, some of the Crucial M4 drives are 4K, some are 8K.

>> first filesystem partition at 1M works for most of the common values.
>
> Alignment of filesystem cannot be better than it's block size.

1M is semi-standard and aligns with all expected block sizes and erase 
block sizes.