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Date: Tue, 21 Oct 2008 07:26:27 +0200
From: Laszlo Nagy <gandalf@shopzeus.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: gjournal: journaled slices vs. journaled partitions
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> So how do I achieve per-slice journaling instead of per-partition?
The docs only says this: "gjournal only supports UFS2". It does not 
specifically say that you cannot have per-slice journaling. However, 
since you could have other filesystems on your slice, I bet that slice 
based journaling is not supported.

Consider this: how would you journal an NTFS file system (and then boot 
windows after an unclean shutdown?) Another tricky question: why would 
you journal a SWAP partition?

Best,

   Laszlo