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[linux-lvm] Re: Snapshots



On Thu, Sep 17 2009 at 10:24am -0400,
Jon Hardcastle <jd_hardcastle yahoo com> wrote:

> Hi,
> 
> Do I need some free extents to create a READ ONLY snapshot? I dont
> have free extents but require a read-only snapshot before doing an
> upgrade.

Yes, even though you intend to only read from the snapshot the upgrade
will cause data to be copied out from the origin to the snapshot.  So
you definitely need some free extents.

Mike


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