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Oracle RAC and PowerFlex Asynchronous Replication
Executive Summary Introduction Product overview PowerFlex asynchronous replication architecture Basic concepts Solution architecture Oracle RAC configuration
Oracle RAC configuration
General best practices
Configuration overview
Configuration procedure
Test failover
Failure scenarios Conclusion Appendix References

Test failover

Test failover

    1. Perform test failover to bring up database on the target.

    DASHBOARD CONFIGURATION Domains Fault Sets Storage pools Acceleration Pools O Replication: RCGs Showing 2 Of 3 RCGs. I Selected LJ Show Selected ADD reg 2/24/21.8 39 PM 2/24/21, 839 Target Sys secondary secondary TOPOLOGY t eway (Local) oracle secondary e) MANAGE Pause RCG MODIFY Sy Stem bdc-soln y b dc-soln•gateway v Name oracle_DATARED0 oracle_FQA Details VOLUME PAIRS (10) RPO QCG Create Snapshots Abort Snapshot Creation Failcwer Aestore Test Failover Set Target to Inconsistent Mode Set Target to Consistent Mode MORE NCE REPLICATION Peer Systems Journal Capacity ALERTS Status Test Mode Last Cycle Time Next Cycle Last Cycle Size Replication BW S KB/s oracle _ DATAREDO oracle _ DATAREDO Last Journal Time: 2/24/21.8:39 PM 100% LastApplied Time: 2/24/21.8:39PM Activate Wind Go to Settings to

    When a test failover is performed, the grid infrastructure on the target cluster can detect the ASM disks.

    Note: The ASM disks is in dismounted state.

    1. Mount the devices, then register the database, before starting the database on the target.
    2. Target database is now ready to be used for other activities such as backup, reporting and so on.
    3. Go back to the initial state of replication from source to target:
      1. Stop database.
      2. Unmount DATA, REDO, and FRA ASM disk groups from the target.

    Machine generated alternative text: ASM Configuration Assistant: Disk Groups Disk Groups ASM ASM Instances Disk Groups DATA MGMT REDO • OCRVOTE Volumes ACFS File Systems Settings Help Disk Group Name MGM REDO OCRVO Size (GB) 0.00 40.00 0.00 0.00 32.00 Free (GB) 0.00 15.28 0.00 0.00 31.63 Usable 0.00 15.28 0.00 0.00 31.63 Redundancy EXTERN EXTERN Grid Infrastructure State DISMOUNTED MOUNTED(3 of 3) DISMOUNTED DISMOUNTED MOUNTED(3 of 3) Note: Use right click to see more options Create Mount All Dismount All Refresh

    1. Log in to PowerFlex presentation server UI and perform the ‘test failover stop’ from the selected RCG.

    Machine generated alternative text: DASHBOARD CONFIGURATION Protection Domains Fault Sets SDSs Storage Pools Acceleration Pools O Replication: 3 RCGs, 1 Selected Cl Show Selected RCGs Source Syst bdc-soln bdc-soln bdc-soln Targe secon... secon... secon... Status Ok Stopped By U... Stopped By U... Search for RCGs State Active Failover Test Failover Test ADD RPO Complia 100% 100% 100% MANAGE Pause RCG Resume RCG MODIFY El A Name Appsync_test RPO 1m 30s 30s MORE ;tenc stent stent stent oracle oracle Details DATAREDO Devices Volumes SDCs REPLICATION Overview Peer Systems RCGs SDRs Journal Capacity ALERTS 30 45 Create Snapshots Abort Snapshot Creation Failover Restore Test Failover Test Failover Stop Set Target to Inconsistent Mode Set Target to Consistent Mode s Go to Settings to activate Windows.

    1. Ensure that the RCG status displays as OK and state is ACTIVE after the test failover has stopped,

    Machine generated alternative text: DASHBOARD CONFIGURATION Protection Domains Fault Sets SDSs Storage Pools Replication: 3 RCGs, 1 Selected Cl Show Selected RCGs ADD MANAGE MODIFY MORE El O Name Appsync_test oracle oracle DATAREDO Source Syst bdc-soln bdc-soln bdc-soln Targe secon... secon... secon... Status Ok Ok Ok Search for RCGs State Active Active Active RPO 1m 30s 30s RPO Compliana 100% 100% 100% LAG 16s 16s 16s Acceleration Pools O Devices Volumes SDCs REPLICATION Overview Peer Systems RCGs SDRs Journal Capacity 30 45 O Consistenc Consistent Consistent Consistent s

    Result: The ASM disk groups DATA, REDO, and FRA on the target becomes read-only again and is not visible until the next failover/switchover from the source.