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man: clarify lvcreate size in extents

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David Teigland
2016-07-06 11:35:50 -05:00
parent f6b98ec7ca
commit 351bcf5f82
1 changed files with 11 additions and 12 deletions
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23
man/lvcreate.8.in
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@ -329,19 +329,18 @@ is specified.
.IR LogicalExtentsNumber \c
.RB [ % { VG | PVS | FREE | ORIGIN }]
.br
Gives the number of logical extents to allocate for the new
logical volume. The total number of physical extents allocated will be
greater than this, for example, if the volume is mirrored.
The number can also be expressed as a percentage of the total space
in the Volume Group with the suffix \fB%VG\fP, as a percentage of the
remaining free space in the Volume Group with the suffix \fB%FREE\fP, as a
percentage of the remaining free space for the specified
The size of the new LV in logical extents. The number of physical extents
allocated may be different, and depends on the LV type, e.g. mirroring.
The number of logical extents can also be expressed as a percentage of the
total space in the Volume Group with the suffix \fB%VG\fP, as a percentage
of the remaining free space in the Volume Group with the suffix
\fB%FREE\fP, as a percentage of the remaining free space for the specified
PhysicalVolume(s) with the suffix \fB%PVS\fP, or (for a snapshot) as a
percentage of the total space in the Origin Logical Volume with the
suffix \fB%ORIGIN\fP (i.e. \fB100%ORIGIN\fP provides space for the whole origin).
When expressed as a percentage, the number is treated
as an approximate upper limit for the number of physical extents
to be allocated (including extents used by any mirrors, for example).
percentage of the total space in the Origin Logical Volume with the suffix
\fB%ORIGIN\fP (i.e. \fB100%ORIGIN\fP provides space for the whole origin).
When expressed as a percentage, the number is treated as an approximate
upper limit, and the actual size of the LV (in logical extents) may be
less.
.
.HP
.BR \-j | \-\-major