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Date: Tue, 13 Nov 2012 14:42:24 +0000
From: Arthur Chance <freebsd@qeng-ho.org>
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To: Leslie Jensen <leslie@eskk.nu>
Subject: Re: Some thoughts about upgrading from 8.3 to 9.1
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On 11/13/12 14:21, Arthur Chance wrote:

Oops, sent this off too quickly.

> I wrote that. It's only relevant if you have recent disks with 4k
> hardware blocks. If you have, you ought to use 4k/16k filesystems
> whatever your OS rev.

That should be 4k/32k. As "man newfs" says:

The optimal block:fragment ratio is 8:1.  Other ratios are possible, but 
are not recommended, and may produce poor results.