Handbook mirroring section

[Hiroki Sato]

Warren Block <wblock at wonkity.com> wrote
  in <alpine.BSF.2.00.1206052220390.10777 at wonkity.com>:

wb> On Tue, 5 Jun 2012, Hiroki Sato wrote:
wb>
wb> > Warren Block <wblock at wonkity.com> wrote
wb> >  in <alpine.BSF.2.00.1206041331520.945 at wonkity.com>:
wb> >
wb> > wb> It's a little tricky.  What do you think about having two
wb> > sections,
wb> > wb> one for how to create a standard mirror from scratch, and one for
wb> > wb> converting a single-disk system to a mirror?
wb> >
wb> > It sounds like a good idea.
wb>
wb> Here's a pass at it:
wb>
wb> http://www.wonkity.com/~wblock/mirror/book.html
wb> http://www.wonkity.com/~wblock/mirror/patch-geom-2.diff
wb>
wb> Notes:
wb>
wb> I tried to factor out common information to the introduction and the
wb> Troubleshooting section afterward.
wb>
wb> diskinfo(8) was used in place of gpart list because the disk capacity
wb> is in the first three lines, so the command line is simpler.
wb>
wb> There is no entity for gnop(8) yet, but I have one locally.

 Thanks, I will review the new version.

 BTW, do you (or anyone) know the common failure pattern when trying
 to use GPT + gmirror of the whole disk?  IIRC it was a metadata
 corruption but I do not remember when it happens.

-- Hiroki
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