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Bug#513924: lvmcfg: Physical Extent (PE) size too small

Laurent Grawet <debian-bugs@grawet.be> writes:

> The default PE size is too small (4MB) for some use when creating 
> volume groups (VG) with debian-installer.
> If you're dealing with large amounts of data, it is highly
> suggested to go for a larger extent size for performance reasons.

man vgcreate says:

   If the volume group metadata uses lvm2 format those restrictions do
   not apply, but having a large number of extents will slow down the
   tools but have no impact on I/O performance to the logical volume.

Thus I don't find it 'highly suggested'.  What do you base your
statement on?

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