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From: Ivan Voras <ivoras@freebsd.org>
Date: Tue, 23 Aug 2011 12:03:52 +0200
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Subject: Re: ZFS installs on HD with 4k physical blocks without any warning
 as on 512 block size device
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On 23/08/2011 11:59, Aled Morris wrote:
> On 23 August 2011 10:52, Ivan Voras<ivoras@freebsd.org>  wrote:
>
>>
>> I agree but there are at least two things going for making the increase
>> anyway:
>>
>> 1) 2 TB drives cost $80
>> 2) Where the space is really important, the person in charge usually knows
>> it and can choose a non-default size like 512b fragments.
>>
> helpers like sysinstall should help with choosing the smaller blocks for
> smaller drives (especially SSD)

Only via hints and help text. Too much magic in the installer leads to 
awkward choices :)

(e.g. first you need to distinguish between a VM with a small drive, a 
SSD small drive, or a SAN small volume... it quickly turns into an 
AI-class problem).