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Subject: Re: RFC: Suggesting ZFS "best practices" in FreeBSD
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From: Borja Marcos <borjam@sarenet.es>
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On Feb 26, 2013, at 9:42 PM, John wrote:

>   And of course, if you look through the source, you'll see where ZFS
> makes a distinction between slices & whole disks. I have not debugged
> through it recently to see how much of it is currently in use.
>=20
>   If you use dual-channel SAS drives with geom multipath, you need to =
be
> clear whether your meta-data on disk from the different geoms =
collide...=20
>=20
>   Regardless of how the best practices is put together, make sure
> folks are aware of the limitations/caveats of the different choices.

Exactly. Anyway, as far as I know, both FreeBSD and Solaris should be =
able to work with GPT slices instead of
whole disks.=20

In the past at least (and, despite the lore one can read here and there) =
Solaris refused to use the disks cache if the vdevs
were made of slices instead of whole disks, but maybe it has changed in =
the past. As far as I know, however, FreeBSD doesn't show
that behavior.




Borja.