HP-UX LVM Supported Limits (September 2008)

Supported Limits for Version 1.0 Volume Groups
The following table summarizes the supported limits in LVM for HP-UX 11.00 and later releases. Unless
noted otherwise, the values are the same across releases.
Parameter Operation to
change the value
Min
Value
Default
Value
Max
Value
Max number of Version 1.0 VGs
per system
Note: In 11iv3, tunable was removed.
Kernel tunable:
kctune maxvgs=’value’
0 10 256
Max LVs Per VG
1
vgcreate –l ‘max_lv’ 1 255 255
Max PVs per VG
1
vgcreate –p ‘max_pv’ 1 16 255
Max Extents per PV
1
If you specify a value greater than
1016, the default value might be
adjusted to the first PV used for
creating the VG (Disk space/ Extent
size).
vgcreate –e ‘max_pe’ 1 1016 65535
Extent Size vgcreate –s ‘pe_size’ 1 MB 4 MB 256 MB
Effective size of a PV
1
Following or superseding patches are
required for supporting disks larger
than 256GB:
11.00 –PHKL_30553
11.11 – PHKL_30622
11.23 – PHKL_31500
pvcreate –s ‘disk_size’ Extent Size LUN
Capacity
2 TB
Size of a LV 11.11 & 11.23 2 TB
[I/Os
beyond
2TB will
be
rereturne
d with
error]
Size of a LV 11.23 with the
following or superseding patches:-
PHCO_36744, PHKL_36745,
PHCO_37939
16TB
Size of a LV 11.31
lvcreate/lvextend
–l ‘le_number’ | –L
‘lv_size’
0 0
16 TB
Mirror copies per LV lvcreate/lvextend –m
‘mirror_copies’
0 0 2
Stripes of LV lvcreate –i ‘stripes’ 2 None –
Must
specify
Max
PVs per
VG
Stripe size of LV lvcreate –I ‘stripe_size’ 4KB 8KB 32768KB
1
With 11.31, the vgmodify command enables you to change these values on an existing VG. For more
information, see the vgmodify(1M) man page and release notes.
3