HP -UX 11i Administrator's Manual page 148

1 The limit of 2048 volume groups is shared among Version 2.x volume groups. Volume groups of Versions 2.x can be
created with volume group numbers ranging from 0-2047. However, the maximum number of Version 2.0 volume
groups that can be created is 512.
2 For volume group Version 2.2 or higher, the total number of logical volumes includes normal logical volumes as well
as snapshot logical volumes.
Table 14 Version 1.0 Volume Group Limits
Parameter
Number of volume groups
on a system
Number of physical volumes
in a volume group
Number of logical volumes
in a volume group
Size of a physical volume
Size of a logical volume
Size of a physical extent
Size of a stripe
Number of stripes
Number of logical extents
per logical volume
Number of physical extents
per physical volume
Number of mirror copies
(MirrorDisk/UX product
required)
1 If more than 1016 extents are necessary to access all of the first physical volume in the volume group, vgcreate
increases the default value to the size of the first physical volume divided by the physical extent size.
148 LVM Specifications and Limitations
Command to Set/Change
Parameter
n/a
vgcreate p max_pv
vgmodify p max_pv
vgcreate l max_lv
vgmodify l max_lv
pvcreate s pv_size
lvcreate L lv_size
lvextend L lv_size
vgcreate s pe_size
lvcreate l
stripe_size
lvcreate i stripes
lvcreate l max_le
lvextend l max_le
vgcreate e max_pe
vgmodify e max_pe
lvcreate m copies
lvextend m copies
Minimum Value Default Value
0 n/a
1 16
1 255
1 PE LUN Capacity
0 0
1 MB 4 MB
4 KB 8 KB
2 n/a
0 0
1
1 1016
0 0
Maximum Value
256
255
255
2 TB
16 TB
256 MB
32 MB
Number of
PVs in VG
65535
65535
2