HP-UX LVM Supported Limits (September 2008)

Supported Limits for Version 2.0 and 2.1 Volume Groups
The following table summarizes the supported limits in LVM for Version 2.0 and 2.1 VGs. Unless noted
otherwise, the values are the same across releases. Note: Creation of Version 2.x VGs and the inherent
limitations are very different from Version1.0 VGs. For more information, see the “LVM Version 2.0
volume groups in HP-UX 11i v3” white paper.
Version 2.0 VG Version 2.1 VG
Parameter Operation to
change the
value
Min
Value
Default
Value
Max
Value
Min
Value
Default
Value
Max
Value
Max number
of VGs per
system
None – Not
needed
0 n/a 512
2
0 n/a 2048
2
Max LVs per
VG
None – Not
needed
511 511 511 2047 2047 2047
Max PVs per
VGs
None – Not
needed
511 511 511 2047 2047 2047
Max VG size vgcreate –S
‘max_vgsize’
1MB
3
None –
Must
specify
2PB 1MB
3
None –
Must
specify
2PB
Max size of
a PV
Extent
size
LUN
capacity
16TB Extent
size
LUN
capacity
16TB
Max extents
per PV
None – not
needed
1 LUN
capacity/
extent
size
16777216
1 LUN
capacity/
extent
size
16777216
Extent size vgcreate –s
‘pe_size’
1MB None –
Must
specify
256MB 1MB None –
Must
specify
256MB
Size of a LV lvcreate/lvexted –
L ‘lv_size’
0 0 256TB 0 0 256TB
Max extents
per LV
lvcreate/lvextend
–L ‘le_number’
0 0 33554432 0 0 33554432
Mirror
copies per
LV
lvcreate/lvextend
–m
‘mirror_copies’
0 0 5 0 0 5
Stripes of LV lvcreate –i
‘stripes’
2 None –
Must
specify
Max PVs
per VG
(511)
2 None –
Must
specify
511
Stripe size of
LV
lvcreate –I
‘stripe_size’
4KB None –
Must
specify
262144KB
4KB None –
Must
specify
262144KB
2
The maximum combined limit of 2.0 and 2.1 volume group is 2048.
3
If the disk is larger than the max VG size specified, vgcreate adjusts the minimum VG size to match the
disk size.
6