HP-UX 11i v3 LVM New Features in HP-UX 11i v3 (September 2009)

15
block directory. For
has bad blocks relocated
a HP-UX 11i v3 release, LVM continues to support this
e relocated blocks from the BBRA.
256, which could be
e system. With HP-UX 11i v3 release, the maxvgs tunable was removed. Users can
now create up to 256 Version 1.0 volume groups and 2048 Version 2.
x volume groups (the combined number of
g setting this kernel
M supports, see the “Version 2.x Volume
Compatibility Note
In HP-UX 11i v3, LVM is compatible with physical volumes that already have entries in the bad
example, a disk device is configured for LVM on HP-UX 11i v2 and this physical volume
to the BBRA. On importing such a physical volume onto
physical volume and can read th
Elimination of maxvgs Tunable
This static tunable specified the maximum number of LVM volume groups in the range 1 to
created or activated on th
Version 2.0 and Version 2.1 volume groups cannot exceed 2048) in a system without requirin
tunable, thus avoiding a reboot.
For more information on different versions of volume groups that LV
Groups” section and the “LVM Version 2.0 Volume Groups in HP-UX 11i v3” whitepaper.
ge scripts that use or modify maxvgs tunable for HP-UX 11i v3.
g
:
# kct
NOTE following change(s)
ll be held for
oma configuration currently contains the
i as in use before the last reboot of this
rent configuration
re making the requested change? y
iguration has been updated.
hanges have been saved, and will take effect at
Tunable Value Expression
maxvgs (now) 10 Default
(next boot) 64 64
On a HP-UX 11i v3 system, no reboot is required as the maxvgs tunable is removed:
# kctune maxvgs
ERROR: There is no tunable named 'maxvgs'.
For more information, see maxvgs(5).
Note: You must chan
Example
On a HP-UX 11i v2 system:
# kctune maxvgs
Tunable Value Expression
maxv s 10 Default
Modifying the maxvgs tunable on a HP-UX 11i v2 release results in a reboot
une maxvgs=64
: The configuration being loaded contains the
that cannot be applied immediately and which wi
the next boot:
-- The tunable maxvgs cannot be changed in a dynamic fashion.
WARNIN ackup'G: The aut tic 'b
configurat on that w
system.
==> Do you wish to update it to contain the cur
befo
* The automatic 'backup' conf
* The requested c
next boot.