Oracle 11gR2 introduces many new features, Oracle 11gR2 the Automatic Storage Management (ASM) and Oracle Clusterware integrated in the Oracle Grid Infrastructure.Oracle ASM and Oracle Database 11gR2 offers a more enhanced than the previous version of the storage solution, the solution can be stored on the Oracle Clusterware files ASM, or Oracle Cluster Registry (OCR) and voting documents (VF, also known as the Voting Disk).This feature allows ASM to provide a unified storage solution, without the use of third-party volume managers or cluster file system and database can store all the items clustered data;
Oracle 11gR2 introduced SCAN (single client access name), that is a simple client to connect the name of a user-friendly interface to the client to connect; in Oracle 11gR2 before, client link to the database when the use vip, if the cluster has 4 nodes, then thetnsnames.ora on the client corresponding to the four host vip a connection string, if the addition of a cluster node, then connect to the database for each client needs to modify the tnsnames.ora.SCAN simplifies the client-side connection, the client only needs to know when to connect the name, and you can connect each SCAN VIP corresponds to a scan listener, cluster within the service in each scan listener all have registered, scan listener to accept clientend of the request, and forwarded to a different Local listener and going, the listener from the local provision of services to the client.
In addition, the installation is also simplified the process of GRID a lot, the kernel parameter settings can be installed to ensure the lowest settings, verify that the installation can be executed after fixup.sh, in addition to ssh trust settings can be done automatically, in particular, no longer in use OCFS and complexity of settings,direct use of ASM storage, the HP-UX11.31 on the cluster without the need for additional software (such as Service Guard for RAC Extendsion) can be installed;
Hardware: HP Rx2600, HP Rx3600, San Switch each one Taiwan, EVA4400 storage set;
Software: Oracle 11gR2 grid hp 11.31 Ia64, Oracle 11gR2 database hp 11.31 ia64
Installation Planning:
Node
The name of the node name of the instance name of the database, operating system, processor, RAM
rx2600 dbrac1 dbrac 2 dual-core Intel 1.900 GHz 4GB HP-UX 11.31
rx3600 dbrac2 2 dual-core Intel 1.900 GHz 4GB HP-UX 11.31
Network Configuration
Public IP address of the node name of the private IP address of the virtual IP address of the name SCAN IP address of SCAN
rx2600 10.10.10.26 15.70.146.27 15.70.146.29 rx-cluster
-scan 15.70.146.11
rx3600 10.10.10.36 15.70.146.37 15.70.146.39
Oracle software components
The main group of the operating system software components the user's home directory assistance group Oracle-based catalog / Oracle home directory
Grid Infra grid oinstall asmadmin, asmdba, asmoper / home / grid / u01/app/crs_base
/ u01/app/crs_home
Oracle RAC oracle oinstall dba, oper, asmdba / home / oracle / u01/app/oracle
/ u01/app/oracle/product/11.2.0/db_1
Storage Components
Storage Components file system volume size of the volume group name ASM redundancy ASM device names
OCR / VF ASM 300G CRS1 External ora-crs1 ~ 3
Data / restoration areas ASM 300G DATA1 External ora-crs4 `6