VERITAS Volume Manager 3.5 Installation Guide (August 2002)

Supported Upgrade Scenarios

52 VERITAS Volume Manager Installation Guide

Supported Upgrade Scenarios

If you are already running a previous version of VxVM, you can upgrade to VxVM 3.5. In

some cases, you do not have to do a complete removal of the old VxVM packages. When

you do have to remove the old package, you should follow the procedure for saving your

VxVM conﬁguration to a ﬁle, as outlined in “Migration Procedure.”

With the release of VxVM 3.5, you also have the choice of having your root disk placed

under VxVM control. With this in mind, the following upgrade procedures are broken

down into:

◆ Procedures needed to upgrade to the VxVM 3.5 release from the VxVM and HP-UX

release that you are currently running.

◆ Procedures needed to upgrade to the VxVM 3.5 release from the VxVM and HP-UX

release that you are currently running, plus putting the root disk under VxVM

control.

Upgrading to a VxVM Root Disk

With the advent of the HP-UX 11i AR0902 release, it is now possible to select VxVM as a

choice for your root disk when performing a new installation using Ignite-UX. However,

if you are a current HP-UX user, and you are performing an upgrade from a prior release

of HP-UX, or if you are a current HP-UX user also running a prior release of VxVM, you

cannot invoke Ignite-UX to convert your system to be VxVM rootable. You can use the

following procedure to achieve VxVM rootability by cloning your LVM root disk using

the vxcp_lvmroot (1M) command.

1. Upgrade your system to HP-UX 11i AR0902 if your current version of HP-UX and/or

VxVM is not already at this level.

2. Select the disk to be used as your new VxVM root disk. It is recommended, that this

disk is internal to the main computer cabinet. If this is currently an LVM disk, then it

mustbe removedfromLVM control(see “Preparingto Install VxVMona System with

LVM Volume Groups” on page 15). If you have two spare disks, and you want to set

up a mirrored root disk, make sure that the second disk is also free from LVM control.

3. While booted on the newly upgraded LVM root disk, invoke the vxcp_lvmroot

command to clone the LVM root diskto the disk(s)you havedesignated tobe thenew

VxVM root disk(s). In the following examples, c1t0d0 and c2t0d0 are used for the

target VxVM root disk and the (optional) root mirror.

# /etc/vx/bin/vxcp_lvmroot -v c1t0d0

or; for a mirrored root:

# /etc/vx/bin/vxcp_lvmroot -v -m c2t0d0 c1t0d0