Make ZFS use the physical sector size when computing initial ashift

[Xin Li]

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On 07/10/13 10:38, Justin T. Gibbs wrote:
[snip]
> I'm sure lots of folks have "some solution" to this.  Here is an 
> old version of what we use at Spectra:
> 
> http://people.freebsd.org/~gibbs/zfs_patches/zfs_auto_ashift.diff
> 
> The above patch is missing some cleanup that was motivated by my 
> discussions with George Wilson about this change in April.  I'll 
> dig that up later tonight.  Even if you don't read the full diff, 
> please read the included checkin comment since it explains the 
> motivation behind this particular solution.
> 
> This is on my list of things to upstream in the next week or so
> after I add logic to the userspace tools to report whether or not
> the TLVs in a pool are using an optimal allocation size.  This is
> only possible if you actually make ZFS fully aware of logical,
> physical, and the configured allocation size.  All of the other
> patches I've seen just treat physical as logical.

Yes, me too.  Your version is superior.

Cheers,
- -- 
Xin LI <delphij at delphij.net>    https://www.delphij.net/
FreeBSD - The Power to Serve!           Live free or die
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