HP Hitachi Dynamic Link Manager Software - Manual (Page 303)

This step enables you to keep the correspondence between LUs and the
logical device file names for SCSI devices once removal is complete.
3
.
Cancel HDLM device registration in an application.
An application uses an HDLM device when accessing an LU, so after HDLM
is removed, the application cannot use the same HDLM device to access
that LU. If an HDLM-managed device is registered in an application
(including cluster software, but excluding volume management software),
cancel registration of the HDLM device.
For details on how to cancel the Heartbeat settings, see
Canceling the
Heartbeat Settings on page 3-232 . For details on how to cancel the Oracle
RAC settings, see Canceling the Settings for Oracle RAC on page 3-232 .
For details on how to cancel the RHCM settings, see Canceling the
Settings for RHCM on page 3-233 . For details on how to cancel the VCS
settings, see Canceling the Settings for VCS on page 3-234 .
4
.
Cancel the Xen settings.
Set up Xen so that the HDLM devices cannot be used in domainU.
For details on how to cancel the Xen settings, see
Canceling the Xen
Settings on page 3-235 .
5
.
Cancel the KVM settings.
Delete the HDLM devices from the hardware configuration file.
For details on how to cancel the KVM settings, see
Canceling the KVM
Settings on page 3-236 .
6
.
Unmount the HDLM device.
If HDLM-managed devices have been mounted by specifying HDLM
devices, unmount them. Also, if the disks are set to be mounted
automatically when the host starts, delete this setting in the /etc/fstab
file.
For details on how to cancel the setting, see
Operations Required for
Devices to Be Managed by HDLM on page 3-96 in Preparations for a New
Installation of HDLM on page 3-96 .
However, perform the procedure by releasing an HDLM disk that is
already defined and adding a SCSI device.
7
.
Cancel HDLM device registration in volume management software.
If HDLM devices are registered in volume management software, cancel
the registration.
For details on how to cancel the LVM settings, see
Canceling the Settings
for LVM2 on page 3-237 .
8
.
Migrate the md device to the SCSI devices.
If you have constructed the md device by using HDLM-managed devices,
you need to migrate the HDLM-managed devices to the SCSI devices.
For details on how to cancel the md device settings, see
Canceling the md
Device Settings on page 3-241 .
9
.
Cancel the LUKS settings.
Migrate to the SCSI devices from an environment where HDLM devices
use LUKS.
Creating an HDLM Environment
3-231
Hitachi Dynamic Link Manager User Guide for Linux ®