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RAC Attack - Oracle Cluster Database at Home/Setup ASMLIB

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  1. Login to collabn1 as oracle and open a teminal. Switch to the root user.
  2. Install ASMLib on both nodes and initialize the disks. mount command may fail (mount: /dev/cdrom-hda already mounted or /mnt/cdrom busy) if you already have cdrom mounted from previous steps. [root@collabn1 ~]# cd /mnt [root@collabn1 mnt]# mount /mnt/cdrom mount: block device /dev/cdrom-hda is write-protected, mounting read-only [root@collabn1 mnt]# mount /mnt/cdrom5 mount: block device /dev/cdrom-hdb is write-protected, mounting read-only # OracleASM rpm -Uvh */*/oracleasm-support* rpm -Uvh */*/oracleasm*el5-2* # (Note - that's lowercase EL5-2.) # Missing from the install media; copied to RAC Attack DVD. rpm -Uvh */oracleasmlib* [root@collabn1 mnt]# /etc/init.d/oracleasm configure Configuring 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 an answer will keep that current value. Ctrl-C will abort. Default user to own the driver interface []: oracle Default group to own the driver interface []: dba Start Oracle ASM library driver on boot (y/n) [n]: y Fix permissions of Oracle ASM disks on boot (y/n) [y]: y Writing Oracle ASM library driver configuration: done Initializing the Oracle ASMLib driver: [ OK ] Scanning the system for Oracle ASMLib disks: [ OK ] 
    [root@collabn1 ~]# /etc/init.d/oracleasm createdisk data /dev/sdb1
Marking disk "data" as an ASM disk:                        [  OK  ]
[root@collabn1 ~]# /etc/init.d/oracleasm createdisk backup /dev/sdc1
Marking disk "backup" as an ASM disk:                      [  OK  ]
[root@collabn1 ~]# /etc/init.d/oracleasm listdisks
BACKUP
DATA

    Now repeat some of the steps on the second virtual machine: 

    [root@collabn1 ~]# ssh collabn2
 
[root@collabn2 ~]# cd /mnt
 
# OracleASM
rpm -Uvh */*/oracleasm-support*
rpm -Uvh */*/oracleasm*el5-2*
# Missing from the install media; copied to RAC Attack DVD.
rpm -Uvh */oracleasmlib*
 
[root@collabn2 ~]# /etc/init.d/oracleasm configure
Configuring 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 an
answer will keep that current value.  Ctrl-C will abort.
 
Default user to own the driver interface []: oracle
Default group to own the driver interface []: dba
Start Oracle ASM library driver on boot (y/n) [n]: y
Fix permissions of Oracle ASM disks on boot (y/n) [y]: y
Writing Oracle ASM library driver configuration: done
Initializing the Oracle ASMLib driver:                     [  OK  ]
Scanning the system for Oracle ASMLib disks:               [  OK  ]
 
[root@collabn2 ~]# /etc/init.d/oracleasm listdisks
BACKUP
DATA



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