System information

Fig ure 14 .9 . Lo g ical view o f vo lu me g roup
14 .2.3. Migrat ing Ext ent s
To migrate extents from a physical volume, select the volume from the list in the left pane, highlight
the desired extents in the central window, and click on the Mi g rate Sel ected Extent(s) Fro m
Vo l ume button. You need to have a sufficient number of free extents to migrate extents within a
volume group. An error message will be displayed if you do not have a sufficient number of free
extents. To resolve this problem, extend your volume group (see Section 14.2.6, “ Extending a Volume
Group” ). If a sufficient number of free extents is detected in the volume group, a pop-up window will
be displayed from which you can select the destination for the extents or automatically let LVM
choose the physical volumes (PVs) to migrate them to. This is illustrated below.
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