Sam Sharpe <lists.redhat(a)samsharpe.net> writes:
On 5 February 2011 20:53, Nikolaus Rath <Nikolaus(a)rath.org>
wrote:
> JFTR, unfortunately PVs cannot be made smaller. The whole idea of LVM is
> to do all the resize operations *within* the containers.
JFTR, unfortunately, you'll need to raise a bug against the pvresize
manpage then...
http://linux.die.net/man/8/pvresize
---
Shrink the PV on /dev/sda1 prior to shrinking the partition with fdisk
(ensure that the PV size is appropriate for your intended new
partition size):
pvresize --setphysicalvolumesize 40G /dev/sda1
---
When filing the report, please state why your assertion "for the
record" is correct over the maintainer's.
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.
From the same manpage that you looked up:
,----
| pvresize will refuse to shrink PhysicalVolume if it has allocated
| extents after where its new end would be. In the future, it should
| relocate these elsewhere in the volume group if there is sufficient free
| space, like pvmove does.
`----
Unfortunately, pvmove can only move extends to other PVs but not to a
different location in the same PV.
Why so aggressive?
-Nikolaus
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