Problem set when installing Oracle 10g RAC under Redhat as 4

Problem 1: Unable to activate the Ethernet device.
The error message is "cannot activate network device eth0! Device eth0 has different MAC address than expected, ignoring ."

Solution:
The MAC address reported by ifconfig does not match/etc/sysconfig/network-scripts/ifcfg-eth0. You can use the new MAC address to update the fileSystem-config-networkThe tool detects new MAC addresses.

Problem 2: The ocfs2 configuration file cannot be generated.
When you try to generate the ocfs2 configuration file, the error message "cocould not start cluster stack. This must be resolved before any ocfs2 filesystem can be mounted" is displayed ".

Solution:
Run the ocfs2console as the root user rather than the Oracle user.

Problem 3: Oracle cluster or Oracle database software cannot be installed on a remote node.
The error message "/bin/tar :. /inventory/components21/oracle. ordim. server/10.2.0.1.0: Time Stamp 2006-11-04 06:24:04 is 25 s in the future ".

Solution:
Install the VMware tool to synchronize the time between the client OS and the Host OS, and include the option "Clock" in/boot/GRUB/grub. conf.=Pit nosmp noapic nolapic ". For more information, see section 3rd.

Problem 4: The ocfs2 file system cannot be mounted.
When you try to mount the ocfs2 file system, the error message "Mount. ocfs2: transport endpoint is not connected while mounting" is displayed ".

Solution:
Run/Usr/bin/system-config-securitylevelTo disable the firewall.

Problem 5: ONS resources cannot be started.
When vipca tries to start ons application resources, the error message "CRS-0215: cocould not start resource 'ora. rac2.ons '" appears '".

Solution:
ONS attempts to access the local host, but cannot resolve the IP address. Add the following items to/etc/hosts.

127.0.0.1 localhost

 

Problem 6: An error occurred while configuring ocfs2. node cannot be added.

# Ocfs2console

Configure nodes --> Add --> enter the node name and IP --> OK --> apply
The following error occurs:
O2cb_ctl: unable to access cluster service while creating Node
Cocould not add node node1

Solution:
Delete the incorrect cluster. conf file under/etc/ocfs2/and use ocfs2console to configure the file again.

 

Question 7: loading module "oracleasm": Unable to load module "oracleasm" [failed]

#/Etc/init. d/oracleasm configure
Processing the Oracle ASM library driver.
This will configure the on-boot properties of the Oracle ASM Library
Driver. The following questions will determine whether the driver is
Loaded on boot and what permissions it will have. The current values
Will be shown in brackets ('[]'). Hitting <enter> without typing
Answer will keep that current value. CTRL-C will abort.

 
Default User to own the driver interface [Oracle]: Oracle
Default group to own the driver interface [DBA]: DBA
Start Oracle ASM library driver on boot (y/n) [y]: Y
Fix permissions of Oracle ASM disks on boot (y/n) [y]: Y
Writing Oracle ASM library driver configuration: [OK]

Loading module "oracleasm": Unable to load module "oracleasm" [failed]

 

Solution:

There may be two reasons for this problem:

1. The downloaded ASM is inconsistent with the Linux kernel. At this time, you need to download the corresponding ASM for installation. You can also upgrade the Linux kernel.
2. query/lib/modules/2.6.9-22. whether oracleasm exists in elsmp/kernel/Drivers/addon/oracleasm. ko. If yes, you need to modify the following content in the/etc/SELinux/config file:
SELinux = enforcing -----> SELinux = disabled
Or:
Applications-> system settings-> Security Level configuration-> SELinux Tab
And the unclick the 'enabled' box.
Restart the system, OK