old-www/HOWTO/LVM-HOWTO/createvgs.html

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>11.2. Creating a volume group</H1
><P
>&#13; Use the 'vgcreate' program:
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># vgcreate my_volume_group /dev/hda1 /dev/hdb1 </B
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<EM
>NOTE:</EM
> If you are using LVM 1 with
devfs it is essential to use the full devfs name of the
device rather than the symlinked name in <TT
CLASS="filename"
>/dev</TT
>. So the above would be:
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>&#13;<B
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># vgcreate my_volume_group /dev/ide/host0/bus0/target0/lun0/part1 \
/dev/ide/host0/bus0/target1/lun0/part1</B
>
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LVM 2 does not have this restriction.
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>&#13; You can also specify the extent size with this command if the
default of 32MB is not suitable for you with the '-s' switch. In
addition you can put some limits on the number of physical or
logical volumes the volume can have.
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