Hitachi XP P9500 User Manual page 275

# vgchange -an vg01
0 logical volume(s) in volume group "vg01" now active
4 Export the volume group.
.
In the following example, the command exports information about the
vg01 volume group:
# vgexport vg01
Volume group "vg01" successfully exported
5 If the LVM environment uses an HDLM device in a multi-path
.
configuration, configure the path to an existing LU as a single path.
Change the path to an existing LU as a single-path configuration by
performing the procedure described in
on page 4-38 in
4-32.
Note
When you restart the host, if the /etc/fstab file contains a
description about mounting the target logical volume, comment out
the description. Also, stop the applications that access the target
logical volume.
6 Edit the /etc/lvm/lvm.conf file.
.
Edit the device section in the file as shown below to enable the SCSI
device configuration and disable the HDLM device configuration:
Adding and deleting the filter entry information
¢
Add the following line:
filter = [ "r|sddlm[a-p][a-p].*|", "a|/dev/sd|" ]
Delete or comment out the following line:
filter = [ "a|sddlm[a-p][a-p].*|", "r|/dev/sd|" ]
Adding and deleting types entry information
¢
Delete or comment out the following line:
types = [ "sddlmfdrv", 16 ]
To uninstall HDLM, perform the following operations:
Delete filter = [ "a|sddlm[a-p][a-p].*|", "r|/dev/sd|" ] and
types = [ "sddlmfdrv", 16 ].
Delete the comment out character (#) from the filter entry to return
the definition file to the state it was in before the HDLM device
configuration was enabled.
Figure 3-38 Example of Editing the /etc/lvm/lvm.conf File on page 3-208
shows an example of editing the file by adding and commenting out lines.
In this example, SUSE LINUX Enterprise Server 9 is used as the OS. The
shaded parts show the locations that were edited.
Creating an HDLM Environment
Hitachi Dynamic Link Manager User Guide (for Linux(R))
Changing the HDLM Device Configuration on page
Deleting a Path to an Existing LU
3-207