Oracle 10g RAC installation: 07 Add the second node

With your first node turned off, you have simply to copy physically your rac1 files into another directory. This will be useful first of all because it is a faster way to create another Linux environments, but above all because we will use the same Oracle users with the same passwords to estabilish later the user equivalence. The user equivalence is necessary for the OUI when begin to copy the Oracle software from the first node to the others n (in our installation just to the second node) and it should be able to connect to the remote node(s) without being prompted for the oracle user password.

We created our first node on the directory F:\UnbreakableRac1, so create another directory (F:\UnbreakableRac2) and copy and paste all the files from F:\UnbreakableRac1 directory into F:\UnbreakableRac2 directory

Now from your vmWare GSX server select File->Open Virtual Machine and then click on Browse button to add your second node (I selected the file F:\UnbreakableRac2\rhel4.vmx). Then click on Edit virtual machine settings and change the name of this second node in rac2

At this point you will see two tabs on your vmWare GSX server, rac1 and rac2: now this time start the second node (rac2). The first time you will be asked if create a new identifier for this machine... You have to create a new identifier.


You will see while your second node is starting that a MAC address misconfiguration is detected: this because you have to probe for new MAC address using system-config-network tool from a root terminal.
So as root user type on your terminal system-config-network and for each network device check for a new MAC address.


Change also your hostname from rac1.vmware.com to rac2.vmware.com.


Save your network configuration and type

/etc/init.d/network restart

Type

hostname

to see if you have written the right hostname for your second node (you should see rac2.vmware.com)

Login as oracle user (su - oracle) and edit your .profile file, changing the ORACLE_SID variable in racdb2.


In the next step we will estabilish the user equivalence between the two nodes (rac1 and rac2) using ssh and ssh-keygen tools.

Oracle 10g RAC installation: 06 download and install Oracle ASM library

At this point we have just to install the asm library rpm package provided by Oracle.

Go to this link and select your Linux release... we'll choose Red Hat Enterprise Linux 4 AS and then you can download your specific package.

I will download that one for the Intel IA32 (x86) Architecture:

oracleasmlib-2.0.2-1.i386.rpm

Open a terminal as root user, go to the Desktop (my downloaded files are saved on the Desktop) and type:

rpm -Uvh oracleasmlib-2*

Finally in the next step... we will create (just as a copy) the second node!!!

Oracle 10g RAC installation: 05 new partitions table for the OCFS and ASM disks

Start your rac1 node from the vmware virtual machine server, login as the root user and execute

fdisk /dev/sdb

Type m to read all the fdisk options otherwise at first when prompted for the command, type n (create a new partition), type p (for a primary partition), type 1 (for partition number), type return or 1 (for First cylinder), type return or 512 (Last cylinder), type w (for write the partition) and wait ioctl to re-read the partition table and syncing the disks.


Then execute

fdisk /dev/sdc

Type n (create a new partition), type p (for a primary partition), type 1 (for partition number), type return or 1 (for First cylinder), type return or 261 (Last cylinder), type w (for write the partition) and wait ioctl to re-read the partition table and syncing the disks.

Then execute

fdisk /dev/sdd

Type n (create a new partition), type p (for a primary partition), type 1 (for partition number), type return or 1 (for First cylinder), type return or 261 (Last cylinder), type w (for write the partition) and wait ioctl to re-read the partition table and syncing the disks.


Then execute

fdisk /dev/sde

Type n (create a new partition), type p (for a primary partition), type 1 (for partition number), type return or 1 (for First cylinder), type return or 261 (Last cylinder), type w (for write the partition) and wait ioctl to re-read the partition table and syncing the disks.

If you would like to see your new partitions table type fdisk -l.