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RACGuides安装指南_Rac11gR2OnLinux
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Table of Contents
Rac11gR2OnLinux.............................................................................................................................................1
1. Introduction.........................................................................................................................................1
1.1. Overview of new concepts in 11gR2 Grid Infrastructure...................................................1
1.1.1. SCAN..................................................................................................................1
1.1.2. GNS....................................................................................................................1
1.1.3. OCR and Voting on ASM storage......................................................................1
1.1.4. Passwordless automatic SSH connectivity.........................................................1
1.1.5. Intelligent Platform Management interface (IPMI)............................................1
1.1.6. Time sync............................................................................................................2
1.1.7. Clusterware and ASM share the same Oracle Home..........................................2
1.1.8. Hangchecktimer and oprocd are replaced...........................................................2
1.2. System Requirements....................................................................................................................................2
1.2.1. Hardware Requirements................................................................................................................2
1.2.2. Network Hardware Requirements.................................................................................................3
1.2.3. IP Address Requirements..............................................................................................................3
1.2.4. Installation method.......................................................................................................................3
2. *Prepare the cluster nodes for Oracle RAC.....................................................................................................4
2.1. User Accounts..................................................................................................................................4
2.2. Networking......................................................................................................................................4
2.3. Synchronizing the Time on ALL Nodes..........................................................................................6
2.4. Configuring Kernel Parameters.......................................................................................................6
2.5. Set shell limits for the oracle user....................................................................................................7
2.6. Create the Oracle Inventory Directory.............................................................................................7
2.7. Creating the Oracle Grid Infrastructure Home Directory................................................................8
2.8. Creating the Oracle Base Directory.................................................................................................8
2.9. Creating the Oracle RDBMS Home Directory................................................................................8
2.10. Stage the Oracle Software..............................................................................................................8
2.11. Check OS Software Requirements.................................................................................................8
3. Prepare the shared storage for Oracle RAC...................................................................................................10
3.1. Shared Storage...............................................................................................................................10
3.1.1. Partition the Shared Disks..............................................................................................10
3.1.2. Installing and Configuring ASMLib..............................................................................11
3.1.3. Using ASMLib to Mark the Shared Disks as Candidate Disks.....................................12
4. Oracle Grid Infrastructure Install...................................................................................................................14
4.1. Basic Grid Infrastructure Install (without GNS and IPMI)...........................................................14
5. Grid Infrastructure Home Patching................................................................................................................33
6. RDBMS Software Install...............................................................................................................................33
7. RAC Home Patching......................................................................................................................................45
8. Run ASMCA to create diskgroups................................................................................................................45
9. Run DBCA to create the database.................................................................................................................50
i
Rac11gR2OnLinux
1. Introduction
1.1. Overview of new concepts in 11gR2 Grid Infrastructure
1.1.1. SCAN
The single client access name (SCAN) is the address used by all clients connecting to the cluster. The SCAN
name is a domain name registered to three IP addresses, either in the domain name service (DNS) or the Grid
Naming Service (GNS). The SCAN name eliminates the need to change clients when nodes are added to or
removed from the cluster. Clients using SCAN names can also access the cluster using EZCONNECT.
The Single Client Access Name (SCAN) is a domain name that resolves to all the addresses
allocated for the SCAN name. Allocate three addresses to the SCAN name. During Oracle grid infrastructure
installation, listeners are created for each of the SCAN addresses, and Oracle grid infrastructure controls
which server responds to a SCAN address request. Provide three IP addresses in the DNS to use for SCAN
name mapping. This ensures high availability.
The SCAN addresses need to be on the same subnet as the VIP addresses for nodes in the cluster.
The SCAN domain name must be unique within your corporate network.
1.1.2. GNS
In the past, the host and VIP names and addresses were defined in the DNS or locally in a hosts file. GNS can
simplify this setup by using DHCP. To use GNS, DHCP must be configured in the subdomain in which the
cluster resides.
1.1.3. OCR and Voting on ASM storage
The ability to use ASM diskgroups for Clusterware OCR and Voting disks is a new feature in the Oracle
Database 11g Release 2 Grid Infrastructure.If you choose this option and ASM is not yet configured, OUI
launches ASM configuration assistant to configure ASM and a diskgroup.
1.1.4. Passwordless automatic SSH connectivity
If SSH has not been configured prior the Installation, you can prompt the installer to this for you. The
configuration can be tested as well.
1.1.5. Intelligent Platform Management interface (IPMI)
Intelligent Platform Management Interface (IPMI) provides a set of common interfaces to computer hardware
and firmware that administrators can use to monitor system health and manage the system.
With Oracle Database 11g Release 2, Oracle Clusterware can integrate IPMI to provide failure isolation
support and to ensure cluster integrity. You must have the following hardware and software configured to
enable cluster nodes to be managed with IPMI:
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