Hitachi Dynamic Link Manager, User Manual, Page: 317 / 746

3. Creating an HDLM Environment
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company with which you have a support service contract for Oracle.
• When using release 10.2.0.2.0 or later of Oracle RAC 10g, the value set in the
DISKTIMEOUT
parameter, must be returned to the value that was set before
HDLM was installed. For details on how to set the value of the
DISKTIMEOUT
parameter, contact the company with which you have a support service contract
for Oracle.
3.23.4 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.
(1) 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: