HP Hitachi Dynamic Link Manager Software - Manual (Page 305)

Canceling the Settings for RHCM
This section describes how to cancel the HDLM device settings in RHCM in an
environment where RHCM is used. If the environment is one where an HDLM
device is already being used in RHCM, the following procedure must be
executed in order to change to an environment that uses a character-type
device of a SCSI device.
Note:
For Oracle Unbreakable Enterprise Kernel 5, RHCM environments are not
supported.
When Using Red Hat Enterprise Linux AS4/ES4
To cancel the settings for RHCM:
1
.
Stop the cluster service of RHCM.
If the RHCM service is running, stop the service by executing the
following command:
# service rgmanager stop
# service cman stop
# service ccsd stop
2
.
Replace the HDLM device used by RHCM with a SCSI device.
Edit as shown below to use the SCSI device /dev/sda, which is the lower
SCSI device of the HDLM device/dev/sddlmaa, as /dev/raw/raw1.
# /dev/raw/raw1 /dev/sddlmaa
/dev/raw/raw1 /dev/sda
Comment out /dev/sddlmaa and add /dev/sda.
3
.
Restart the rawdevices service to apply the changes made in Step 2.
Execute the following command to restart the service:
# service rawdevices restart
4
.
Start the cluster service of RHCM.
Executing the following command to start the service:
# service ccsd start
# service cman start
# service rgmanager start
When Using Red Hat Enterprise Linux 5 or When Using Red Hat Enterprise Linux
6
To cancel the settings for RHCM:
1
.
Stop the cluster service of RHCM.
Creating an HDLM Environment
3-233
Hitachi Dynamic Link Manager User Guide for Linux ®