Re: Resizing PVs (was: Installation Impressions)

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Once upon a time, Nikolaus Rath <[email protected]> said:
> You can shrink a PV, but you will loose the extents that are stored in
> the space that you have truncated. I don't consider that resizing.

Changing the size of something is called resizing.

> Unfortunately, pvmove can only move extends to other PVs but not to a
> different location in the same PV.

Not true.  It isn't as straightforward; you have to know a map of the
PEs and specify them to the pvmove command like (assuming the
destination PEs are not in use):

pvmove /dev/sda2:1000-1100 /dev/sda2:100-200

IIRC you get a warning, and it is slow (obviously, reading and writing a
bunch of data on the same drive is slow).
Chris Adams <[email protected]>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.
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