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Erez Alsheich - GridControl
 

Erez Alsheich - GridControl

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    Erez Alsheich - GridControl Erez Alsheich - GridControl Presentation Transcript

    • Managing Your RAC with <Insert Picture Here> OEM – Grid Control RAC, ASM and Linux Forum, October 12, 2010 Erez Alsheich C.E.O Erez@valinor.co.il
    • - Introduction • Leading database service provider • Merged with on July 2010 • All major databases • Gold Partners • OEM – Grid Control expertise and leadership • Currently looking for talented DBAs: jobs@valinor.co.il Erez@valinor.co.il
    • Some of our (300+) Customers Erez@valinor.co.il
    • Agenda About OEM – Grid Control RAC Administration RAC Monitoring RAC Performance Diagnostics & Tuning RAC Configuration Management Erez@valinor.co.il
    • About OEM – Grid Control Erez@valinor.co.il
    • OEM & RAC • Entire stack: cluster, hosts, database, database instances,, ASM instances, listeners • All aspects: Administration, Monitoring, Performance diagnostics Performance tuning Configuration management Erez@valinor.co.il
    • RAC Administration Erez@valinor.co.il
    • Cluster Administration Erez@valinor.co.il
    • Manage Resources Erez@valinor.co.il
    • Resource Information Erez@valinor.co.il
    • Resource Advanced Settings Erez@valinor.co.il
    • Manage Resource Types Erez@valinor.co.il
    • Cluster - Interconnects Erez@valinor.co.il
    • Topology & Status Erez@valinor.co.il
    • Dashboards – Cluster Database Erez@valinor.co.il
    • Dashboards – Host Erez@valinor.co.il
    • Dashboards – ASM Erez@valinor.co.il
    • RAC Monitoring Erez@valinor.co.il
    • Monitoring Highlights • OOTB metrics for all target types • OOTB thresholds and sample frequencies • Over-Time graphs for each metric!! • Automatic Corrective Actions • User Defined Monitoring metrics • Built-in Email notification • SNMP traps to Manager-of-Managers (MoM) • Built-in connectivity with leading MoM solutions Erez@valinor.co.il
    • Database OOTB Metrics Erez@valinor.co.il
    • Host OOTB Metrics Erez@valinor.co.il
    • Cluster OOTB Metrics Erez@valinor.co.il
    • ASM OOTB Metrics Erez@valinor.co.il
    • Metric Data over Time - Diagnostics - Trend Analysis - Capacity Planning - Comparison Erez@valinor.co.il
    • RAC Performance Diagnostics & Tuning Erez@valinor.co.il
    • Host Performance Dashboard Erez@valinor.co.il
    • ASM Performance Dashboard Erez@valinor.co.il
    • Database Performance Dashboard Erez@valinor.co.il
    • ADDM – Automatic Diagnostics Erez@valinor.co.il
    • Automatic Tuning Advisor Erez@valinor.co.il
    • RAC Configuration Management Erez@valinor.co.il
    • View Configuration: HW,SW,Patches,Params Erez@valinor.co.il
    • Compare Configurations Erez@valinor.co.il
    • Comparison Results - Summary Erez@valinor.co.il
    • Comparison Results - HW Erez@valinor.co.il
    • Comparison Report - OS Erez@valinor.co.il
    • Change Tracking Erez@valinor.co.il
    • Thanks Erez@valinor.co.il
    • <Insert Picture Here> Real Life Experience with RAC 11GR2 RAC, ASM and Linux Forum, October 12, 2010 Avi Apelbaum DBA & System engineer Erez@valinor.co.il
    • Agenda Upgrading 10g cluster to 11gR2 grid Moving ASM to extended RAC Questions Erez@valinor.co.il
    • Upgrading 10g cluster to 11gR2 GI • Technique 1 : Creating a new cluster. Erez@valinor.co.il
    • Technique 1 : Creating a new cluster Step 1 : If your db is 10.2.0.1 or below so first upgrade it to 10.2.0.4 Step 2 : Taking (of course) a full backup of the db (rman or storage snapshot). The following steps are if you are using the same machine: Step 3 : Backup spfile (if not in asm)/init.ora Step 4 : Take notes of the current services (prefered nodes,TAF policies,etc…) Erez@valinor.co.il
    • Technique 1 : Creating a new cluster Step 5 : Uninstall rdbms software (both ASM and DB if separated) and cluster software. Step 6 : Uninstall clusterware and cleanup the machine (use metalink:239998.1) Step 7 : Install 11gR2 Grid Infrastructure Step 8 : Install 10.2.0.1 rdbms software and upgrade it to 10.2.0.4 (or the version of your DB). Erez@valinor.co.il
    • Technique 1 : Creating a new cluster Step 9 : Copy the backed up spfile/init.ora to it‟s new place. Step 10 : Add the DB to the new cluster by using “srvctl add database” and add then add instances by using “srvctl add instance” Step 11 : Add services by using srvctl add service. Erez@valinor.co.il
    • Technique 1 : Creating a new cluster If you choose to do it on a new machine you have 3 possibilities: • After shutdown the DB, unmap LUNs from old machines and map them to the new machine (has to be same OS). If using linux run the command oracleasm scandisks as root user and then oracleasm listdisks. In other case you can use the following command “kfod disks=all dscvgroup=TRUE” Erez@valinor.co.il
    • Technique 1 : Creating a new cluster • Export the data and then import it into a newly created database. • Using Transportable database to move it to a new machine. In this case the DB can me moved between platforms (look at oracle documentation for limitations). Erez@valinor.co.il
    • Upgrading 10g cluster to 11gR2 GI • Technique 2 : Upgrading the existing cluster. Erez@valinor.co.il
    • Technique 2 : Upgrading the existing cluster This technique is well documented in oracle but I‟ve choose to build a new one for the following reasons/issues: • When beginning the upgrade we had only 1 votedisk. After running rootUpgrade.sh on the first node this node changed/upgraded the only votedisk available and the second node upgrade (of course) failed. Erez@valinor.co.il
    • Technique 2 : Upgrading the existing cluster • After a second retry, which succeeded, at the final step we‟ve made a restart to the cluster but it failed to start because for some unknown reason the interconnect and public interface configuration were changed in such a way the cluster was not able to start anymore and it was unable to get to a state were the reconfiguration was possible (using oifcfg ). Erez@valinor.co.il
    • Upgrading 10g cluster to 11gR2 GI • Using ASM for Extended RAC. Erez@valinor.co.il
    • Moving ASM to Extended RAC Extended ASM is actually a diskgroup in normal or high redundancy in which each Failure Group is on a separate storage machines in different locations. Erez@valinor.co.il
    • Moving ASM to Extended RAC I used the following main steps to migrate our 11gR2 asm to extended RAC: • Step 1 : Map new volumes from both storage machines to all the cluster nodes. The same number and size of volume should be use in both storages. • Step 2 :Create a new Diskgroup/s with normal redundancy when each failgroup is on a different storage. Erez@valinor.co.il
    • Moving ASM to Extended RAC • Step 2a: Create a normal redundancy diskgroup with at least 3 disks for the votedisks and OCR. • Step 3 Move votedisks to new DG (“crsctl replace votedisk +<NEW DG NAME>”) • Step 4 Move ocr disks (ocrconfig) • Step 5 Move controlfiles to new DG‟s Erez@valinor.co.il
    • Moving ASM to extended RAC • Step 6 When DB is in mount state copy datafiles to new DG by using the command: “backup as copy database format +<NEW DATA DG” • Step 7 After succsessfully competion of the copy perform the following to update control file with the copied datafiles :”switch database to copy” and then “alter database open” Erez@valinor.co.il
    • Moving ASM to extended RAC • Step 8 : Create a new temp TBS or add a new file to the current one and then delete the old file from that temp TBS(alter database tempfile „path to file‟ drop;) • DONE. Erez@valinor.co.il
    • Upgrading 10g cluster to 11gR2 GI Q&A Erez@valinor.co.il
    • Upgrading 10g cluster to 11gR2 GI contact@valinor.co.il Erez@valinor.co.il