Migrating an Integrity HP-UX 11iv3 Instance to New Hardware

2
Introduction
Customers often find that they want to move an existing instance of an HP-UX installation to new
hardware. The change may be to a new computer model or to a system of the same model with
additional I/O or networking capacity. The move may provide greater compute capacity, more
expansion for the future, lower power and cooling costs, and better use of data center real estate.
In such cases, the prospect of “setting the new system up from scratch” can be daunting, since it may
involve identifying and restoring all customizations made to the system. It is often preferable to move
the previous system boot disk, either literally, or through a mechanism such as moving a DRD clone of
the system, or deploying an Ignite-UX recovery image of the system, to the new hardware.
This paper provides complete descriptions of two techniques which can be used to migrate the pre-
existing HP-UX 11i v3 systems to new computers. This raises the question of which technique is
preferable given your circumstances. The following table is a list of some common migration
situations along with a recommendation for the method to use for migration:
If this is your situation Consider usin
g
this method:
If you are movin
g
the entire system
–
data as well as boot disks
Move the boot disk or DRD clone, alon
g
with all data. Device
files arepreserved and very little additional setup is needed.
If you do not have an I
g
nite-U
X
server setup already
Move the boot disk or a DRD clone.
If you have many boot disks on a
given system or hard partition,
making it challenging to identify a
particular boot disk
Deploy an I
g
nite-U
X
recovery ima
g
e.
If your root disk is mana
g
ed by
VxVM
Deploy an I
g
nite-U
X
Recovery ima
g
e. DRD rehostin
g
does not
support VxVM roots.
If you need to clone or move an
instance of HP-UX 11iv1
Consult “Successful System Clonin
g
usin
g
I
g
nite
-
UX“ located at
http://www.hp.com/go/ignite-ux-docs
to see if this is
possible.
DRD is not available on HP-UX 11i v1.
If you only use internal boot disks
that are not hot-pluggable
Deploy an I
g
nite-U
X
recovery ima
g
e.
If you are movin
g
a “physical
system” to a vPar
If the physical source system does not support vPars, deploy
an Ignite-UX recovery image plus an additional depot of vPars
software. If the physical system already has vPars installed,
move the boot disk or DRD clone, or deploy an Ignite-UX
recovery image.
If you are movin
g
a “physical
system” to a VM
Create the guest with hpvmcreate. Prepare the DRD clone,
or the Ignite-UX recovery image, being sure to add the module
hpvmdynmem and install the additional VM guest depot from
the VM host. See also “Using Ignite-UX with Integrity Virtual
Machines” located at http://www.hp.com/go/hpux-hpvm-
docs
If you want to move an entire set of
vPars to a next Generation server
Set up the vPars on the new hardware from the iLO, then
either move DRD clones or deploy Ignite-UX recovery images.
If you are movin
g
a VM
g
uest from
one VM host to a new VM host.
Use online or offline VM mi
g
ration.