Copilot Deeper Dive. Rasmus Rask Eilersen

Transcription

1 Copilot Deeper Dive Rasmus Rask Eilersen

2 Contents Quick Overview of Copilot Terminology Architecture and Process Dump and Sweep Architecture and Process Whole Database and Incremental Merge Video Demo of the process Veritas Technologies LLC. All rights reserved.

3 What is Copilot for Oracle?

4 Copilot Overview Why Did We Develop It? DBA s may not want to give up control of the backups DBA s and Backup Admins do not always communicate Copilot strikes a balance DBA s back up to the NFS share on the Appliance NetBackup Admin gets them into NetBackup Or we can use Oracle Agent to back up DB and also perform Incremental Merge Benefits Incremental Merge using a DBA familiar process DBA can check status of backups using familiar RMAN tools No performance overhead on Oracle server after initial backup Subsequent copies use resources of the Appliance Incremental Merge means less data transfer Veritas Technologies LLC. All rights reserved.

5 Copilot Overview What Makes It Work? NFS Share on an Appliance DBA can point a Dump to the NFS Share DBA s have been doing this for ages Oracle Agent can be used with OIP if the DBA is willing DBA s should be in the business of being a DBA, not data protection Once data is on NFS share, NBU can interact with it Enhancements to NBU Policy and code Veritas Technologies LLC. All rights reserved.

6 Copilot Requirements Works on all supported master server platforms 5230 or later Appliance All supported Oracle client platforms NBU or later NBU on Appliance DB Pack License Veritas Technologies LLC. All rights reserved.

7 Terminology

8 Terminology Some terms are ours and the DBA may not understand them Dump and Sweep also called Database Backup Share Dump and Sweep is what Veritas calls this action Process where DBA backs up data using RMAN to an NFS share on the Appliance After the data is on the NFS share, NBU picks it up for additional protection options DBA initiates the process Whole Database with Incremental Merge (Accelerator) Uses OIP or traditional RMAN Agent to call the backup from the Oracle server and send it to the NFS share Not to be confused with NBU Accelerator, this is the Oracle process for sending only changed blocks Incremental Merge is understood by the DBA, Accelerator is not (but we check the Accelerator button on the NBU Policy) May or may not directly involve the DBA Veritas Technologies LLC. All rights reserved.

9 Architecture and Process Dump and Sweep

10 Process Flow What Talks To What? 1 Queries DB for backups on appliance share DB Takeaways after the Dump process: NBU talks to the RMAN Catalog BPHDB BPDBSBORA 2 Writes a file in /usr/openv/netbackup/logs/user_ops/dbext/logs containing the backup sets to backed up NB_ORA_BKUPSETSFILE RMAN knows what NetBackup has done NetBackup creates an RMAN script on the fly BPCD 3 Creates and executes a RMAN script that passes the NB_ORA_BKUPSETSFILE name to Oracle agent RMAN script Script is passed to Oracle Agent New options for this are in Policy Veritas Technologies LLC. All rights reserved.

11 What Does It Look Like Oracle Dump Process 11

12 What Does It Look Like Oracle Dump Process After the DBA has Dumped the database There is one copy and it resides on disk After NetBackup has secured the data. There are now 2 copies of the data plus a controlfile backup (933), job ID 40 in activity monitor in subsequent slide. 12

13 What Does It Look Like NetBackup Sweep Process Full schedule backs up everything on the share by default for the Oracle SID Differential and Cumulative Incremental schedules backup what has not already been backed up. The Archive Redo Log schedule behaves the same as other backup selection types. 13

14 What Does It Look Like NetBackup Sweep Process Database Backup Shares will protect any disk based RMAN backups DBA s have placed on the shares Default ALL_DATABASE_BACKUP_SHARES. This keyword will protect all shares found for that instance Browsing for Oracle SID is possible, but a backup must already exist on the share 14

15 What Does It Look Like NetBackup Sweep Process New - Database Backup Share Options to delete backup sets or backup copies Traditionally the DBA would remove the dump after NBU had secured it NBU can do this automatically now The agent verifies that there is a copy in NetBackup before issue the RMAN delete command 15

16 What Does It Look Like NetBackup Sweep Process Job Id 31 backs up the RMAN files Job Id updates the RMAN catalog Job Id 40 backs up the control file direct from the database to ensure we have the latest catalog entries. Typically would want to create a single NFS share for all Dumps 16

17 Architecture and Process Whole Database with Incremental Merge

18 Process Flow What Talks To What? 1 Queries DB DB Takeaways Same process as existing OIP or RMAN Agent Backup Data written to the NFS share 2 Create and executes a RMAN script that backups the database to the appliance NFS share RMAN script Standard Oracle type backup (nothing really new here) 3 Queries DB for backups on appliance share BPHDB BPDBSBORA 4 Writes a file in /usr/openv/netbackup/logs/user_ops/dbext/logs containing the backup sets to backed up NB_ORA_BKUPSETSFILE BPCD 5 Creates and executes a RMAN script that passes the NB_ORA_BKUPSETSFILE name to Oracle agent RMAN script Veritas Technologies LLC. All rights reserved.

19 What Does It Look Like NetBackup Oracle Backup Control file, Archive log and SPFILE backups Datafile backups 19

20 What Does It Look Like NetBackup Oracle Backup Rman list backup will show the proxy copies This will show the checkpoint time of each datafile copy, datafile name and location 20

21 What Does It Look Like NetBackup Oracle Backup List of the Copilot share (NFS mount) will show the updated proxy copy that can be used for restore Size of the files on the NFS share is exactly the same as the size on the Oracle disk 21

22 What Does It Look Like Incremental Merge Process The Use Accelerator checkbox triggers Oracle Incremental Merge This is a Oracle process that the DBA should be familiar with Important to note this is not NBU Accelerator Example Child sent 514MB of data shown below (Job 90 on slide 24) Oracle would see this as a Full 22

23 What Does It Look Like Whole DB Backup Whole Database Datafile Copy Share will create a copy of the data files on the share and then protect them. This option is accelerator enabled Only accepts a single directory location. There is no default Browsing for a share is available 23

24 What Does It Look Like Whole DB Backup 2 separate NetBackup jobs run Jobs are the initial backup and update of the Oracle RMAN catalog Jobs is the backup of the snapshot Typically would want to create a NFS share for each DB due to snapshots being done at the share level 24

25 How Do You Talk To The DBA and Backup Team? Both methods still require the DB to be registered with NBU Dump and Sweep DBA can maintain control over backups if desired NetBackup can use the DB dump and protect it still under Oracle control Tape/Disk/Dedupe DBA can restore from original dump (Oracle disk) if it hasn t been removed, or restore can be initiated from NetBackup (SBT_TAPE) All being done via RMAN Whole DB with Incremental Merge NBU Admin has control Only moving Incremental data but Oracle considers it a Full backup 25

26 Q&A Veritas Technologies LLC. All rights reserved.

27 Thank you! Rasmus Rask Eilersen Copyright 2016 Veritas Technologies LLC. All rights reserved. Veritas and the Veritas Logo are trademarks or registered trademarks of Veritas Technologies LLC or its affiliates in the U.S. and other countries. Other names may be trademarks of their respective owners. This document is provided for informational purposes only and is not intended as advertising. All warranties relating to the information in this document, either express or implied, are disclaimed to the maximum extent allowed by law. The information in this document is subject to change without notice.