1. 11gR2 RAC/Grid Clusterware:
Best Practices, Pitfalls, and
Lessons Learned
Presented during DOUG meeting held on 10/21/2010 at Dallas, TX
Ramkumar Rajagopal
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
1
2. Introduction
DBARAC is a specialty database consulting firm with expertise in a variety of
industries based at Austin, Texas.
Our people are experts in Oracle Real application clustered database focused
solutions for managing large database systems.
We provide proactive database management services including but not
limited to In-house, on-shore DBA support , remote DB support, database
maintenance and backup and recovery.
Our DBA Experts provide specialized services in the areas of -
Root cause analysis
Capacity planning
Performance tuning,
Database migration and consolidation
Broad industry expertise
High-Availability RAC database specialists
End-to-end database support
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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3. Introduction
Presenter
• Senior Database Consultant DBARAC
• Oracle Database/Applications DBA since 1995
• Dell, JP Morgan Chase, Verizon
• Presenter @ Oracle Open world 2007
• Author Dell Power Solutions articles
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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4. AGENDA
• Introduction
• Node eviction issue in 10g
• What is “11GR2 Grid Clusterware”?
• The Challenges
• What’s different today?
• “We’ve seen this before, smart guy…”
• Architecture and Capacity Planning
• Upgrade Paths
• Pre-installation best practices
• Grid Clusterware Installation
• Clusterware Startup sequence
• Post Install steps
• RAC Database build steps
• Summary
• Q&A
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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5. Why a node is evicted?
• Split brain condition
•
• IO fencing
• CRS keeps the lowest number node up
• Node eviction detection
11GR2 Grid clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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6. Root Causes of Node
Eviction
Network heartbeat lost
Voting disk problems
cssd is not healthy
Oprocd
Hang check timer
cssd and oclsomon race to suicide
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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7. 11GR2 Grid Clusterware
Improvements
• Node eviction algorithm is enhanced
• Prevent a split-brain problem without rebooting the
node
• Oracle High Availability Services Daemon
• Will still reboot in some cases
• Faster relocation of services on node failure in 11GR2
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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8. 9i/10g RAC Scenario
• Several separate versions of databases
• Several servers
• Space/resource issues
• Lesser resources
• Provisioning takes time
11GR2 Grid clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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9. Top concerns
• How many are using 11GR2 Grid clusterware?
• Do you have more than one mission-critical databases
within single RAC cluster?
• Can you allocate resources dynamically to handle peak
volumes of various application loads without
downtime?
• Issues on using shared infrastructure
• Will my database availability and recovery suffer ?
• Will my database performance suffer ?
• How to manage a large clustered environment to meet sla’s
for several applications?
11GR2 Grid clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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10. Why 11GR2 Grid CRS?
11GR2 Grid Clusterware is…
An Architecture
An IT Strategy
– Clusterware & ASM storage deployed together
– Many, many Oracle Database Instances
– Drives Consolidation
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
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11. Challenges
• Skilled resources
• Meeting SLA’s
• End-to-end testing not possible
• Security Controls
• Capacity issues
• Higher short-term costs
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
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12. What’s different today?
• 11gR2 Grid CRS & ASM supports
• 11GR2, 11GR1, 10gR1 and 10gR2 Single Instances
•
• Powerful servers, 64Bit O/s
• Provisioning Framework to deploy
• Grid control
11GR2 Grid clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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13. 11GR2 RAC DB Architecture
Planning
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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14. Capacity Planning
• What are the current requirements?
• What are the future growth requirements in the next 6-12months?
• To meet the demand – estimate the hardware requirements
• Data retention requirements
• Archiving and purging
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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15. Capacity Planning metrics
• Database metrics for capacity planning
• CPU & memory Utilization
• I/O rates
• Device utilization
• Queue length
• Storage utilization
• Response time
• Transaction rate
• Network Packet loss
• Network Bandwidth utilization
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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16. Capacity Planning Strategy
• Examine existing engagement processes
• Examine existing capacity of servers/storage
• Define Hardware/database scalability
• Provisioning for adding capacity
• Integration testing
• Large clustered database
• SLA requirements
•
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
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17. Comparison – 10g vs 11GR2
• Server consolidation
• Database consolidation
• Instance consolidation
• Storage consolidation
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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18. AGENDA so far…
• Introduction
• Node eviction issue in 10g
• What is “11GR2 Grid clusterware”?
• The Challenges
• What’s different today?
• “We’ve seen this before, smart guy…”
• Architecture and Capacity Planning
• Upgrade Paths
• Pre-installation best practices
• Grid Clusterware Installation
• Clusterware Startup sequence
• Post Install steps
• RAC Database build steps
• Summary
• Q&A
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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19. • Upgrade Paths
• Out-of-place clusterware upgrade
• Rolling Upgrade
• Oracle 10gR2 - from 10.2.0.3
• Oracle 11gR1 - from 11.1.0.6
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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20. Pre-installation best
practices
• Network Requirements
• Cluster Hardware Requirements
• ASM Storage Requirements
• Verification Checks
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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21. Pre-Installation best practices
Network Configuration
• SCAN -Single Client Access Name
• Failover - Faster relocation of services
• Better Load balancing
• MTU package size of Network Adapter (NIC)
• Forwarder, zone entries and reverse lookup
• Ping tests
• Two dedicated interconnect switches for redundant interconnects
• Run cluvfy
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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22. Pre install - Network -
SCAN Configuration
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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23. Pre Install Network -
SCANVIP Troubleshooting
• SCAN Configuration:
• $GRID_HOME/bin/srvctl config scan
• SCAN Listener Configuration:
• $GRID_HOME/bin/srvctl config scan_listener
• SCAN Listener Resource Status:
• $GRID_HOME/bin/crsctl stat res -w "TYPE = ora.scan_listener.type“
• $GRID_HOME/Listener.ora
• Local and remote listener parameters
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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24. Pre Install -Cluster
Hardware requirements
• Os/kernel same on all servers in the cluster
• Minimum 32 GB of RAM
• Minimum Swap space 16GB
• Minimum Grid Home free space 16GB
• For each Oracle Home directory allocate 32 GB of space (for each
db -32GB)
• Allocate adequate disk space for centralized backups
• Allocate adequate storage for ASM diskgroups – DATA and FRA
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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25. Cluster Hardware
requirements continued…
Most cases: use UDP over 1 Gigabit Ethernet
For large databases - Infiniband/IP or 10 Gigabit Ethernet
Use OS Bonding/teaming to “virtualize” interconnect
Set UDP send/receive buffers high enough
Crossover cables are not supported
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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26. Pre Install - ASM Storage
configuration
• In 11gR2 ASM diskgroups are used
• Grid infrastructure - OCR, Voting disk and ASMspfile.
• Database - DATA and FRA.
• OCR and voting disks for Grid clusterware
• OCR can now be stored in Automatic Storage Management (ASM).
• Add Second diskgroup for ocr using
• - ./ocrconfig -add +DATA02
Change the compatibility of the new diskgroup to 11.2 as follows:
ALTER DISKGROUP DATA02 SET ATTRIBUTE
‘COMPATIBILITY.ASM’=’11.2’;
ALTER DISKGROUP DATA02 SET ATTRIBUTE
‘COMPATIBILITY.RDBMS’=’11.2’;
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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27. AGENDA so far…
• Introduction
• Node eviction issue in 10g
• What is “11GR2 Grid clusterware”?
• The Challenges
• What’s different today?
• “We’ve seen this before, smart guy…”
• Architecture and Capacity Planning
• Upgrade Paths
• Pre-installation best practices
• Grid Clusterware Installation
• Clusterware Startup sequence
• Post Install steps
• RAC Database build steps
• Q&A
11GR2 Grid clusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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28. Hardware/Software details
• 10gR2 architecture – 9 database servers, 25TB storage
– Original Database Version: 10.2.0.5
– Original RAC cluster version : 10.2.0.1
– Original Operating System: Ret Hat Linux 5 As 64 Bit
– Storage Type : ASM & RAW Storage
• 11gR2 Grid architecture – 4 database servers, 40TB
storage
– New Database Version: 11.2.0.2
– New Grid Clusterware/ASM version: 11.2.0.2
– New Operating System : Ret Hat Linux 5 As 64Bit
– Data migration steps using Rman backup and restore and
data pump export dump files
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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29. 11GR2 Migration Steps
• Install 11gR2 Grid clusterware and Asm
• Install 11gR2 database binaries for each
database separately
• Create the 11gR2 database
• Add additional ASM diskgroups
• Install 11GR1/10gR2 database binaries
• Create 11GR1/10gR2 databases
• Take backup
• Restore the data
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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30. Pre-verification
checks- cluvfy
• Before Clusterware installation
• ./cluvfy stage -pre crsinst -n node1,node2, node3 –verbose
• Before Database installation
• ./cluvfy stage -pre dbinst -n node1,node2, node3 -fixup -verbose
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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35. Step 5
11GR2 Grid Clusterware
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meeting in Dallas, TX
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36. Step 6
11GR2 Grid Clusterware
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37. Step 7
11GR2 Grid Clusterware
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38. Step 8
11GR2 Grid Clusterware
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39. Step 8 cont..
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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40. Step 9
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41. Step 9 cont...
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
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42. Step 10
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
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43. Step 11
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44. Step 11 cont..
11GR2 Grid Clusterware
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45. Step 12
11GR2 Grid Clusterware
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46. Step 12
11GR2 Grid Clusterware
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47. Step 13
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48. Step 14
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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49. Runfixup.sh
11GR2 Grid Clusterware
• root> /tmp/runfixup.sh
• Response file being used is
:/tmp/CVU_11.2.0.1.0_grid/fixup.response
• Enable file being used is
:/tmp/CVU_11.2.0.1.0_grid/fixup.enable
• Log file location: /tmp/CVU_11.2.0.1.0_grid/orarun.log
• Setting Kernel Parameters...
• fs.file-max = 327679
• fs.file-max = 6815744
• net.ipv4.ip_local_port_range = 9000 65500
• net.core.wmem_max = 262144
• net.core.wmem_max = 1048576
• uid=501(grid)gid=502(oinstall)groups=502(oinstall),
• 503(asmadmin),504(asmdba)
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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50. Step 15
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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51. Step 16
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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52. Step 16 cont.…
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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53. ./orainstRoot.sh
11GR2 Grid Clusterware
Cd /home/oracle/oraInventory
[root@oradb-grid1 oraInventory]# ./orainstRoot.sh
Changing permissions of /home/oracle/oraInventory.
Adding read, write permissions for group.
Removing read,write,execute permissions for world.
Changing groupname of /home/oracle/oraInventory to oinstall.
The execution of the script is complete.
[root@oradb-grid1 oraInventory]# cd /u01/app/oracle
[root@oradb-grid1 oracle]# ls
product scripts
[root@oradb-grid1 oracle]# cd product
[root@oradb-grid1 product]# ls
11.2.0
[root@oradb-grid1 product]# cd 11*
[root@oradb-grid1 11.2.0]# ls
grid
[root@oradb-grid1 11.2.0]# cd db*
[root@oradb-grid1 grid]# ls root*
root.sh
[root@oradb-grid1 grid]# ./root.sh
Running Oracle 11g root.sh script...
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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54. ./orainstRoot.sh
11GR2 Grid Clusterware
The following environment variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /u01/app/oracle/product/11.2.0/grid
Enter the full pathname of the local bin directory: [/usr/local/bin]:
The file "dbhome" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]:
The file "oraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]:
The file "coraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]:
Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
2009-10-02 10:31:44: Parsing the host name
2009-10-02 10:31:44: Checking for super user privileges
2009-10-02 10:31:44: User has super user privileges
Using configuration parameter file:
/u01/app/oracle/product/11.2.0/grid/crs/install/crsconfig_params
Creating trace directory
LOCAL ADD MODE
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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55. ./orainstRoot.sh
11GR2 Grid Clusterware
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
root wallet
root wallet cert
root cert export
peer wallet
profile reader wallet
pa wallet
peer wallet keys
pa wallet keys
peer cert request
pa cert request
peer cert
pa cert
peer root cert TP
profile reader root cert TP
pa root cert TP
peer pa cert TP
pa peer cert TP
profile reader pa cert TP
profile reader peer cert TP
peer user cert
pa user cert
Adding daemon to inittab
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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56. ./orainstRoot.sh
11GR2 Grid Clusterware
CRS-4123: Oracle High Availability Services has been started.
ohasd is starting
CRS-2672: Attempting to start 'ora.gipcd' on 'oradb-grid1'
CRS-2672: Attempting to start 'ora.mdnsd' on 'oradb-grid1'
CRS-2676: Start of 'ora.gipcd' on 'oradb-grid1' succeeded
CRS-2676: Start of 'ora.mdnsd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'oradb-grid1'
CRS-2676: Start of 'ora.gpnpd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'oradb-grid1'
CRS-2676: Start of 'ora.cssdmonitor' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'oradb-grid1'
CRS-2672: Attempting to start 'ora.diskmon' on 'oradb-grid1'
CRS-2676: Start of 'ora.diskmon' on 'oradb-grid1' succeeded
CRS-2676: Start of 'ora.cssd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.ctssd' on 'oradb-grid1'
CRS-2676: Start of 'ora.ctssd' on 'oradb-grid1' succeeded
ASM created and started successfully.
DiskGroup DATA created successfully.
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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57. ./orainstRoot.sh
11GR2 Grid Clusterware
clscfg: -install mode specified
Successfully accumulated necessary OCR keys.
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
CRS-2672: Attempting to start 'ora.crsd' on 'oradb-grid1'
CRS-2676: Start of 'ora.crsd' on 'oradb-grid1' succeeded
CRS-4256: Updating the profile
Successful addition of voting disk 659585bf3a834f39bf281fd47e9ed6db.
Successful addition of voting disk 762177cd6f844f25bfc677fb681a02ab.
Successful addition of voting disk 154c17a0de9c4ffdbff9a3b2f22b52f6.
Successfully replaced voting disk group with +DATA.
CRS-4256: Updating the profile
CRS-4266: Voting file(s) successfully replaced
## STATE File Universal Id File Name Disk group
-- ----- ----------------- --------- ---------
1. ONLINE 659585bf3a834f39bf281fd47e9ed6db (/dev/oracleasm/disks/VOL1) [DATA]
2. ONLINE 762177cd6f844f25bfc677fb681a02ab (/dev/oracleasm/disks/VOL2) [DATA]
3. ONLINE 154c17a0de9c4ffdbff9a3b2f22b52f6 (/dev/oracleasm/disks/VOL4) [DATA]
Located 3 voting disk(s).
Presented on 10/21/2010 at DOUG
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58. ./orainstRoot.sh
11GR2 Grid Clusterware
CRS-2673: Attempting to stop 'ora.crsd' on 'oradb-grid1'
CRS-2677: Stop of 'ora.crsd' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'oradb-grid1'
CRS-2677: Stop of 'ora.asm' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.ctssd' on 'oradb-grid1'
CRS-2677: Stop of 'ora.ctssd' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.cssdmonitor' on 'oradb-grid1'
CRS-2677: Stop of 'ora.cssdmonitor' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'oradb-grid1'
CRS-2677: Stop of 'ora.cssd' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.gpnpd' on 'oradb-grid1'
CRS-2677: Stop of 'ora.gpnpd' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.gipcd' on 'oradb-grid1'
CRS-2677: Stop of 'ora.gipcd' on 'oradb-grid1' succeeded
CRS-2673: Attempting to stop 'ora.mdnsd' on 'oradb-grid1'
CRS-2677: Stop of 'ora.mdnsd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.mdnsd' on 'oradb-grid1'
CRS-2676: Start of 'ora.mdnsd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.gipcd' on 'oradb-grid1'
CRS-2676: Start of 'ora.gipcd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'oradb-grid1'
CRS-2676: Start of 'ora.gpnpd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'oradb-grid1'
CRS-2676: Start of 'ora.cssdmonitor' on 'oradb-grid1' succeeded
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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59. ./orainstRoot.sh
11GR2 Grid Clusterware
CRS-2672: Attempting to start 'ora.cssd' on 'oradb-grid1'
CRS-2672: Attempting to start 'ora.diskmon' on 'oradb-grid1'
CRS-2676: Start of 'ora.diskmon' on 'oradb-grid1' succeeded
CRS-2676: Start of 'ora.cssd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.ctssd' on 'oradb-grid1'
CRS-2676: Start of 'ora.ctssd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.asm' on 'oradb-grid1'
CRS-2676: Start of 'ora.asm' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.crsd' on 'oradb-grid1'
CRS-2676: Start of 'ora.crsd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.evmd' on 'oradb-grid1'
CRS-2676: Start of 'ora.evmd' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.asm' on 'oradb-grid1'
CRS-2676: Start of 'ora.asm' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.DATA.dg' on 'oradb-grid1'
CRS-2676: Start of 'ora.DATA.dg' on 'oradb-grid1' succeeded
CRS-2672: Attempting to start 'ora.registry.acfs' on 'oradb-grid1'
CRS-2676: Start of 'ora.registry.acfs' on 'oradb-grid1' succeeded
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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60. ./orainstRoot.sh
11GR2 Grid Clusterware
oradb-grid1 2009/10/02 10:37:08 /u01/app/oracle/product/11.2.0/grid/cdata/oradb-
grid1/backup_20091002_103708.olr
Preparing packages for installation...
cvuqdisk-1.0.7-1
Configure Oracle Grid Infrastructure for a Cluster ... succeeded
Updating inventory properties for clusterware
Starting Oracle Universal Installer...
Checking swap space: must be greater than 500 MB. Actual 39997 MB Passed
The inventory pointer is located at /etc/oraInst.loc
The inventory is located at /home/oracle/oraInventory
'UpdateNodeList' was successful.
oradb-grid2 output :-
[root@oradb-grid2 oraInventory]# pwd
/home/oracle/oraInventory
[root@oradb-grid2 oraInventory]# ./orainstRoot.sh
Changing permissions of /home/oracle/oraInventory.
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
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61. Step 16
11GR2 Grid Clusterware
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62. Step 16 cont.…
11GR2 Grid Clusterware
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63. Grid CRS Startup sequence
11GR2 Grid Clusterware
OHASD
oraRootAgent oraAgent cssdAgent cssdMonitor
crsd ctssd Diskmon ACFS
mdnsd gipcd gpnpd evmd
crsdRootAgent
GCS VIP
ASM
crsdOraAgent
networkResource SCAN VIPs Node VIPs ACFS Reg
DB Resource SCAN Listener Services ONS
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65. Clusterware verification
Clusterware checks
–
$ crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online $ crsctl check has
CRS-4638: Oracle High Availability Services is online
$ crsctl query crs activeversion
Oracle Clusterware active version on the cluster is
[11.2.0.2.0]
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
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66. Clusterware verification
Clusterware processes
$ crsctl check cluster -all
**************************************************************
rat-rm2-ipfix006:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
rat-rm2-ipfix007:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
rat-rm2-ipfix008:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
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67. Clusterware verification
$ crsctl status resource -t
NAME TARGET STATE SERVER STATE_DETAILS
------------------------------------------------
ora.DATA.dg ASM disk group (new resource)
ONLINE ONLINE rat-rm2-ipfix006
ONLINE ONLINE rat-rm2-ipfix007
ONLINE ONLINE rat-rm2-ipfix008
ora.LISTENER.lsnr
ONLINE ONLINE rat-rm2-ipfix006
ONLINE ONLINE rat-rm2-ipfix007
ONLINE ONLINE rat-rm2-ipfix008
ora.asm
ONLINE ONLINE rat-rm2-ipfix006 Started
ONLINE ONLINE rat-rm2-ipfix007 Started
ONLINE ONLINE rat-rm2-ipfix008 Started
ora.eons new resource
ONLINE ONLINE rat-rm2-ipfix006
ONLINE ONLINE rat-rm2-ipfix007
ONLINE ONLINE rat-rm2-ipfix008
ora.gsd
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
67
68. Post Install Steps
• One-off patch –unlock the Grid home first
• # perl rootcrs.pl -unlock -crshome
/u01/app/11.2.0/grid
• Download and Install the latest Patch Updates
• Back Up the root.sh Script
• Install Cluster Health Management
• Install OS Watcher and RACDDT
• Check the backups of OCR and voting disks
• Lock the Grid home after patch installation
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
68
69. Manageability
• Grid control
• Adding/dropping nodes
• Automatically discovers services
• Policy-based cluster management
• Automated Cluster Patching
• End to end management of the cluster
11GR2 Grid Clusterware
Presented on 10/21/2010 at DOUG
meeting in Dallas, TX
69
70. flexibility
Scalability & Flexibility
• Sever pools of hardware available
• Consolidation of hardware and storage
• Rapid provisioning of resources to add capacity where its required
• Improved utilization of resources
• Better ROI
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
70
71. Summary
• Reduced Hardware
• Improved availability –SLAs
• Shorter Time to add additional server or storage
• Higher Security
• Data Sharing & visibility
• Better application performance
• Centralized backup and archive
• Higher ROI – higher utilization
• Manageability
• Pride in Ownership, Eliminating the Assembly Line
• Bottom line = reduce TCO!
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
71
72. References
• 11gR2Oracle® Clusterware Administration and Deployment Guide
• Metalink ID 1054902.1 for Network configuration
• RAC Assurance Support Team: RAC Starter Kit and Best Practices
(Linux)
• Metalink NOTE:887522.1 - 11gR2 Grid Infrastructure Single Client
Access Name
• Metalink NOTE:946452.1 - DNS and DHCP Setup Example for Grid
Infrastructure GNS
Metalink Pre 11.2 Database Issues in 11gR2 Grid Infrastructure
Environment [ID 948456.1]
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
72
73. 11GR2 Grid cluster
Q & A
Email @ ramkumar.rajagopal@dbarac.com
11GR2 Grid ClusterwarePresented on 10/21/2010 at DOUG
meeting in Dallas, TX
73
