Configuring HP-UX For Peripherals

156 Chapter5

Conﬁguring Disk Drives, Disk Arrays, and CD-ROM Drives

Conﬁguring into your System an LVM Disk Already Containing Data

Conﬁguring into your System an LVM Disk

Already Containing Data

NOTE This procedure is provided for conﬁguring a Series 800 legacy LVM disk

into HP-UX 10.0. Before proceeding, make sure you have read “Planning

to Conﬁgure into your System a Disk Already Containing Data” and

have performed the examination documented in “Ensuring Against

Clashes with HP-UX 10.0”.

Step 1. Back up the data on the disk; see the backup chapter in Managing

Systems and Workgroups.

Step 2. Unmount any ﬁle systems residing on the LVM disk by using the umount

command.

Step 3. Deactivate the disk's volume group by using the vgchange command.

Step 4. Remove the volume group of the disk from its current conﬁguration and

prepare to export it using the vgexport command. The -m option creates

a map file that retains the names of the logical volumes in the volume

group.

/usr/sbin/umount /dev/vg01/lvol1

/usr/sbin/vgchange -a n /dev/vg01

/usr/sbin/vgexport -m mapfile /dev/vg01

Step 5. Copy the mapfile to the new system on which the disk will reside. On a

networked system, you can use rcp or ftp.

Step 6. Create a record of your system's current disk conﬁguration for later use.

/usr/sbin/ioscan -fun -C disk

Step 7. Note whether the current conﬁguration includes the device driver

needed to communicate with the disk being conﬁgured. If any necessary

driver is absent from the kernel, you will need to rebuild the kernel to

include it. Here is how you rebuild the kernel:

a. Change directory to the build environment (/stand/build). There,

execute a system preparation script, system_prep, which extracts the