Considerations for building oracle11g R2 RAC under Oracle linux6.5 (64bit)

1, the name of each node (hostname) to be set.

2, it is recommended that the network card used for private communication is bound by two network cards, and the network card names of each node are consistent.

3, the public IP, the virtual IP and the scan IP must be in the same network segment, the private IP in another network segment, virtual IP to be installed in the grid after the ping pass.

4, Memory Size: When memory is 2.5GB-16GB, swap needs to be greater than or equal to system memory, and swap equals 16GB when memory is greater than 16GB.

5, before installing Oracle 11GR2 in Oracle Linux 6, some checks are required, and the Pre-install package (which comes with the installation media of the Oracle linux6.5 (64bit) system) can help us do most of the configuration.
What the Oracle-rdbms-server-11gr2-preinstall bag did.
(1) Automatic installation of the RPM package required by Oracle

Check dependency package: Yum list binutils compat-libstdc++-33elfutils-libelf elfutils-libelf-devel gcc gcc-c++ glibc Glibc-commonglibc-devel glibc-headers ksh libaio libaio-devel libgcc libstdc++libstdc++-devel make Numactl-devel Sysstat UnixODBC Unixodbc-devel

(2) Automatically create Oracle users and group groups
(3) automatic configuration of/etc/sysctl.conf kernel parameters
(4) automatic configuration/etc/security/limits.conf parameters
(5) Turn off Numa=off (turn off non-uniform memory access)

6, configure SSH Trust (both Oracle and grid users need to trust)
This is a critical step, although Oui will automatically configure SSH when the official documentation claims to install GI and RAC, but it is better to manually configure trust by using CVU to check each configuration before installation.

If the trust configuration fails, check the system log first to see if the system firewall is down. Are there anti-virus software? Does the system have security hardening settings? ......
7, generally, when installing Oracle remotely via SCRT on Windows, if you are unable to access the graphical interface, first confirm that Xmanager 4 is installed? Then start the Xmanager–passive program, execute the export display=ip:0.0 in Scrt, (where the IP is the IP of your local machine, can be viewed in scrt), and then execute Xhost + with the root user, which appears in Access Control disabled, clients can connect from any host and then switch to the installation user grid, finally execute./runinstaller, the page is out! It is important to note that your local machine's firewall is adding exceptions or shutdowns.

8, the ASM file system that holds the Orc information, the individual ASM file size should be more than 869MB, otherwise it may be reported [INS-30515] error.

9,grid user's hard limit and soft limut restrictions need to be modified.

10,[ins-20802]oracle Cluster Verification Utility failed

This error is caused because we use/etc/hosts instead of DNS to implement the scan IP, as long as the scan IP can be ping, if successful, then this error can be ignored.

This article is from the "Jochen" blog, please be sure to keep this source http://zhangshicheng.blog.51cto.com/10721583/1732773

Considerations for building oracle11g R2 RAC under Oracle linux6.5 (64bit)