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Recovery Management Solution 50 Ways to Move Your Data (a.k.a., Make a New Plan Stan) Phil Grainger Donna Di Carlo BMC Software Session Code: 414 Wed,

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Presentation on theme: "Recovery Management Solution 50 Ways to Move Your Data (a.k.a., Make a New Plan Stan) Phil Grainger Donna Di Carlo BMC Software Session Code: 414 Wed,"— Presentation transcript:

1 Recovery Management Solution 50 Ways to Move Your Data (a.k.a., Make a New Plan Stan) Phil Grainger Donna Di Carlo BMC Software Session Code: 414 Wed, May 01, :00 PM - 02:00 PM| Platform: DB2 for z/OS

2 Click to edit Master title style Agenda Data migration overview Capturing a consistent image Migrating with RMD Solution V New V Copy Migration feature Migration scenarios Summary Questions 2

3 Click to edit Master title style Why do we move data around? Production data is our business And it is often handy to have that data elsewhere From production DB2 to “somewhere else” Data analytics and decision support Application testing System testing Problem diagnostics 3

4 Click to edit Master title style What are our choices? As with most things in DB2, we have choices to make We could use Unload and Load Costly process and time consuming We could use DSN1COPY Much faster But no knowledge of DB2 internals DSN1COPY can complete without errors, but the data may still be inaccessible There are more and more reasons NOT to use DSN1COPY: Schema changes that are not yet instantiated RRF vs BRF Object definition differences We could use hardware snapshots IF the object structures are IDENTICAL between subsystems For safety we would need to revert to Unload and Load Costly process and time consuming 4

5 Click to edit Master title style There has to be a better way And there is Restore the data using a consistent image This process is very efficient And if the data movement needs to be repeated, we could Refresh the migrated data Or even propagate changes via log 5

6 Click to edit Master title style Consistent image copy Image copy can’t have in-flight transactions All updates must be committed 6 UR 1 UR 2 UR 3 UR 4 Consistent Point Inconsistent Point

7 Click to edit Master title style Obtaining a consistent image SHRLEVEL REFERENCE image copy Requires a large outage Instant Snapshot Copy Uses intelligent storage to snap a SHRLEVEL REFERENCE copy Requires a small outage OUTCOPY ONLY Merges existing image copy with log to produce a copy Must specify a quiet point or use Timestamp Recovery feature Can use Log Master to find a quiet point QUIESCE not necessary Online Consistent Copy (OCC) Creates a SHRLEVEL CHANGE Snapshot Uses log to back out in-flight transactions No outage required 7

8 Click to edit Master title style Recover Plus INCOPY feature Use when the target subsystem is remote Specify an unregistered consistent copy in the INCOPY clause Supply OBID translation values Values can be defaulted for single-table table spaces and indexes 8 DB2A DB2B

9 Click to edit Master title style Recover Plus INCOPY feature (cont.) Difficult to use with OBJECTSET An OBJECTSET allows you to process a group of objects in a single statement All OBID translation values must be defaulted All image copy data set names must use the same data set model Can’t use cabinet copies A cabinet copy contains several small images in one data set Eliminates several data set allocate/open/close commands Needs BMCXCOPY information to read the cabinet 9

10 Click to edit Master title style Recover Plus INDEP OUTSPACE Use when shared DASD is available Specify source object name and quiet point The appropriate image copy will be used based on the quiet point Will merge log with image copy to create a consistent image Can use Timestamp Recovery and specify a time instead of a quiet point Specify VSAM data set name of target Supply OBID translation values Defaults source values for single-table table spaces and indexes 10 DB2A DB2B VSAM DS DB2A Log

11 Click to edit Master title style Recover Plus INDEP OUTSPACE (cont.) Can’t be used with cabinet copies or an OBJECTSET that contains multi-table table spaces 11

12 Click to edit Master title style V Copy Migration feature Copy Migration feature helps automate migration The migration file is key Supplies image copy names and translation ID values Used to verify compatibility between source and target attributes 12

13 Click to edit Master title style V Copy Migration feature (cont.) Uses the following products Copy Plus EXPORT creates the migration file Recover Plus processes the migration file IMPORT automates INCOPY MIGRATE automates INDEP OUTSPACE Change Manager EXPORT IMPORT Allows for multi-tasking Allows BMCXCOPY access Instant Snapshot Cabinet copies Encrypted copies Allows LOB migration 13

14 Click to edit Master title style Migration file Brains of Copy Migration Contains information from SYSCOPY, BMCXCOPY and the DB2 catalog Image copy names Object ID values Schema definitions Versioning information Allows for a high level of error checking Created by the Copy Plus EXPORT command Input to the Recover Plus IMPORT and MIGRATE commands 14

15 Click to edit Master title style Copy Plus EXPORT command The output descriptor defines the migration file allocation The object list names the table spaces to be exported TABLESPACE Can be wildcarded OBJECTSET APPLICATION Table spaces will be included if a full image copy is found Can request to include indexes with INDEXES YES Must have an available index image copy Image copy selection Most recent copy is default If INDEXES YES, index copy log point doesn’t have to match table space copy Can request a copy at a specific point If INDEXES YES, index copy log point must match table space copy 15

16 Click to edit Master title style Copy Plus EXPORT example OUTPUT EXPFILE UNIT WORK EXPOUT YES DSNAME RDADMB.PBGMIG.EXPORT EXPORT TABLESPACE DMDSRC*.* EXPORTDDN(EXPFILE) ATLOGPOINT LASTFULLCOPY INDEXES YES 16

17 Click to edit Master title style Recover Plus IMPORT command Automates the INCOPY technology The EXPORT runs on the source while the IMPORT runs on the target The object list names the table spaces to be imported TABLESPACE OBJECTSET No specification means import everything You have a choice on how to handle indexes REBUILD RECOVER AUTO - let Recover Plus decide NO - don’t process any indexes Command available to map object names from source to target Ability to migrate only data that has changed since last EXPORT/IMPORT 17

18 Click to edit Master title style IMPORT 18 IMPORT TS IX TS IX IC MIG FILE MIG FILE DB2 CATALOG DB2 CATALOG BMC XCOPY BMC XCOPY SYSCOPY DB2 CATALOG DB2 CATALOG BMC XCOPY BMC XCOPY EXPORTCOPY

19 Click to edit Master title style Recover Plus IMPORT example IMPORT USING RDADMB.PBGMIG.EXPORT NOCOPYPEND INDEXES AUTO SYNC AUTO CHANGE TABLE FROM RDADMB.DMDSRC* TO RDADMB.DMDTGT* CHANGE INDEX FROM RDADMB.DMDSRC* TO RDADMB.DMDTGT* 19

20 Click to edit Master title style Recover Plus MIGRATE command Automates the INDEP OUTSPACE technology The EXPORT runs on the target while the MIGRATE runs on the source The object list names the table spaces to be exported TABLESPACE OBJECTSET No specification means migrate everything Choices to handle indexes are limited Recovering the indexes is advisable Cannot rebuild the indexes with MIGRATE Must supply a model of the VSAM data set name Command available to map object names from source to target 20

21 Click to edit Master title style MIGRATE 21 EXPORT TS IX ICIC ICIC MIG FILE MIG FILE DB2 Catalog DB2 Catalog BMC XCOPY BMC XCOPY DB2 CATALOG DB2 CATALOG MIGRATE Log SYSCOPY

22 Click to edit Master title style Recover Plus MIGRATE example MIGRATE USING RDADMB.PBGMIG.EXPORT1 CHANGE TABLE FROM RDADMB.DMDTGT* TO RDADMB.DMDSRC* CHANGE INDEX FROM RDADMB.DMDTGT* TO RDADMB.DMDSRC* INDEP OUTSPACE MODEL &VCAT.DSNDBC.&DB.&TS.I0001.&PART 22

23 Click to edit Master title style Migration scenarios BACKOUT updates Log Master ongoing process Copy Migration refresh 23

24 Click to edit Master title style BACKOUT updates IMPORT production to test On the source subsystem Create an OCC for the table spaces Execute Copy Plus EXPORT to create a migration file On the target subsystem Use Change Manager to Create the target objects Specify IMPORT to migrate the data Rebuild the indexes Execute Copy Plus to create copies of the new table spaces Perform testing BACKOUT AUTO to refresh data Forward recovery will be performed if one of the following occurs REORG LOAD REBUILD 24

25 Click to edit Master title style Log Master ongoing process MIGRATE production to RO subsystem On the target subsystem Use Change Manager to create the target objects Create an image copy for the table spaces Execute Copy Plus EXPORT to create a migration file Stop the table spaces On the source subsystem Find and generate a quiet point with Log Master Run Recover Plus MIGRATE to move the data to the target VSAM On the target subsystem Start the table spaces Rebuild the indexes 25

26 Click to edit Master title style Log Master ongoing process (cont.) Refresh from production On the source subsystem Collect Logical Log (LLOG) with Log Master ongoing process Use the quiet point from the MIGRATE as a starting point Specify end point with a date/time, LRSN or LOGMARK On the target Use High Speed Apply Engine to apply LLOG Repeat this process on a regular basis Some customers repeat as regularly as every 15 minutes 26

27 Click to edit Master title style Copy Migration refresh IMPORT production to test On the source subsystem Create an OCC for the table spaces and indexes Execute Copy Plus EXPORT to create a migration file On the target subsystem Use Change Manager to Create the target objects Use Recover Plus to IMPORT the table space and indexes 27

28 Click to edit Master title style Copy Migration refresh (cont.) Refresh test data On the source subsystem Create an OCC for the table spaces and indexes Execute Copy Plus EXPORT to create a migration file On the target subsystem Use Recover Plus to IMPORT with SYNC AUTO Only refreshes data that was changed on the source and/or the target No need to rebuild indexes 28

29 Click to edit Master title style Summary BMC Software provides several different ways to Create consistent image copies Migrate data Refresh data Mix and match to suit your environment All options provide Speed Efficiency Ease of use If you would like a copy of this presentation We will be at the booth or us 29

30 Phil Grainger Donna Di Carlo BMC Software Session Code: 414 Recovery Management Solution 50 Ways to Move Your Data (a.k.a., Make a New Plan Stan) Evaluate my session online:


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