new hp solution for replicating nonstop sql ddl: sdr...
TRANSCRIPT
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© 2008 Hewlett-Packard Development Company, L.P.The information contained herein is subject to change without notice
New HP Solution for Replicating NonStop SQL DDL: SDR SDR SDR SDR Bob Loftis, HP Product ManagerJohanne Corbeil, SDR Support MgrOct 2nd, 2008
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Agenda
• Where HP NonStop SDR fits• Product overview• Release plan• Q&A
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NonStop Business Continuity Strategy
Provide access to our partners who offer heterogeneous data transformation, and replication options
Provide high performance, reliable, NonStop to NonStop database replication products that:• Allow smooth migration and upgrade
• Support no lost business in disaster events – very hot standby
• Provide zero lost transactions where required
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NonStop Customers
• Over 300 current Business Continuity customers− Banking
− Exchanges
− Telecomm
− Retail
− Healthcare
− Government
• Some success stories online, but most prefer no publicity
Ensuring business processes
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HP NonStop Disaster ProofDisaster Tolerant Solutions That Work!
• No lost transactions: 550 tps
• Fast Takeover ~30 seconds
• All HP systems performed as expected−All data protected on Storageworks XP
24000
−All shared network gear (Procurve, Brocade, etc.)
• See our ATC white paper at: www.hp.com/go/nonstopcontinuity
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Integrated HP NonStop Server products
•Transaction Management Facility (TMF) −Foundation for transaction integrity and data protection
•Remote Database Facility (RDF)−High-performance database replication – fast Takeover
•AutoTMF−NonStop TMF protection for non audited databases
•AutoSYNC−Synchronization non database files
Integrated products providing business continuity without specialist programming knowledge
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And introducing this month, our latest addition…
HP NonStop SQL DDL Replicator, or, SDR!−Automatic SQL DDL replication
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Why HP NonStop SDR?
• Much requested and needed
• To automate procedures
• To reduce errors
• To be more efficient
• To be more cost effective
• It’s so easy…from the team that brings you AutoTMF and AutoSYNC
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• Where HP NonStop SDR fits• Product overview• Release plan• Q&A
Agenda
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NonStop SQL DDL Replicator (SDR)
• Extracts, replicates and applies NS SQL/MP DDL operations to backup tables
• Designed to work with RDF
• All SQL DDL operations replicated−CREATE, DROP, COMMENT operations
−ALTER TABLE and ALTER INDEX (including split and merge partitions)
−Can replicate DDL on non-audited tables (configurable)
• No impact on performance or operations of applications on primary
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• SDR is a companion to, and depends upon, RDF
• SDR requires no operator intervention when RDF is being initialized, configured, started or stopped
• SDR and RDF coordinate replication to execute DDL in proper sequence
• RDF data replication configuration (volumes, network, etc.) used for DDL replication
• Like RDF, operates automatically, day in and out−No operator intervention for normal operations
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SDR and RDF
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SDR Supports Typical RDF Topologies
Centralized Multiple duplicates RingSimplex
A-Z A-Z
Network Transaction Replication
A-L
M-Z
Reciprocal Chain
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One Exception - Unsupported TopologyMultiple
Same volume pair
$P1$P1 $B1$B1
RDF PRIMARDF PRIMA
RDF PRIMBRDF PRIMB
EXCLUDE TEST.*EXCLUDE TEST.*
INCLUDE TEST.*
\BACK\PRIM
Same primary to same backupwith same volume pair
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TMF and RDF – Now SDR and RDF
• Audited data updates captured by TMF are replicated by RDF
• Similarly, SQL DDL updates captured by SDR are replicated by RDF
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Data Replication – TMF and RDF (1 of 4)
Data Manager
DP2
Application
Utilities
Primary
DB
Applications and utilities update data in the primary tables
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Data Replication – TMF and RDF (2 of 4)
TMF
Data Manager
DP2
Application
Utilities
Primary
DB
Data Update Extraction
TMF captures, updates and stores changes in the audit trails
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Data Replication – TMF and RDF (3 of 4)
TMF
Data Manager
DP2
RDF
Data Manager
DP2
Application
Utilities
Primary
DB
Data Update Extraction
Data Update Replication
RDF transports data updates to the backup system
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Data Replication – TMF and RDF (4 of 4)
TMF
Data Manager
DP2
RDF
Data Manager
DP2
Application
Utilities
Primary
DB
Backup
DB
Data Update Extraction
Data Update Replication
RDF applies data updates to the backup tables
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Now SDR and RDF
• Audited data updates captured by TMF are replicated by RDF
• Similarly, SQL DDL updates captured by SDR are replicated by RDF
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DDL Replication – SDR and RDF (1 of 4)
SQLApplicatio
n
Utilities
Primary
DB
Applications and utilities apply DDL changes to primary tables
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DDL Replication – SDR and RDF (2 of 4)
SDR
SQLApplicatio
n
Utilities
Primary
DB
DDL Extraction
SDR captures the DDL operations performed on the primary tables
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DDL Replication – SDR and RDF (3 of 4)
SDR
SQLApplicatio
n
Utilities
Primary
DB
DDL Extraction
DDL Replication
RDF SDR
RDF transports captured DDL operations to the backup system
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RDF
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DDL Replication – SDR and RDF (4 of 4)
SDR
SQL
SDR
SQL
Application
Utilities
Primary
DB
Backup
DB
DDL Extraction
DDL Execution
DDL ReplicationSDR applies replicated DDL operations to the backup tables
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SDR Product Components
• SDRCOM – Command Interpreter
• SDRMON – Monitor Process
• SDRRUNTM – Runtime for DDL Extraction
• SDRUPDT – Updater for DDL Replication
• Message, Help, Template and Filter files
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SDR Installation
Download or IPSETUP the SDR PAK file1. Run INSTALL macro2. Create SDR database (SDRCOM command)3. Install product license4. SDRCOM INSTALL SDR
− Updates SQL software to extract DDL operations− Required after any update to SQL components
5. Update EMS Templates6. Update Cold Load procedures to start SDR
monitor
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DDL Extraction – On Primary
• SDR Runtime captures SQL DDL−SQL statement
−DEFINEs
−Network topology for distributed tables
• Writes DDL to audited SDR Depot file
• Inserts “STOP-RDF-UPDATE” in audit trail
• Does not require RDF to be configured or active
• Does not affect SQL DDL processing
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DDL Extraction – Step by Step (1 of 5)
SQLApplication
SQLCI
Primary
DB
SQL utilities execute DDL changes to the primary tables
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DDL Extraction – Step by Step (2 of 5)
SDR Runtime
SQLApplication
SQLCI
Primary
DB
SDR captures DDL operations executed on the primary tables
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DDL Extraction – Step by Step (3 of 5)
SDR Runtime
SQLApplication
SQLCI
Primary
DB
TMF Audit Trail DDL
SDR stores DDL in audited Depot file and TMF captures changes
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DDL Extraction – Step by Step (4 of 5)
SDR Runtime
SQLApplication
SQLCI
Primary
DB
TMF Audit Trail DDL Stop RDF Update
SDR inserts SRU in the audit trail to control RDF updaters on backup
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DDL Extraction – Step by Step (5 of 5)
SDR Runtime
SQLApplication
SQLCI
Primary
DB
TMF Audit Trail DDL Stop RDF UpdateRDFRDF
Backup System
RDF extracts DDL and SRU from audit trail for replication
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DDL Replication – On Backup
• RDF transports extracted DDL description− Replicated audited update to SDR Depot file
• RDF updaters suspend updating
• SDR Updater monitors RDF configuration and detects it has work to do
• SDR analyzes, translates, and executes DDL
• SDR notifies RDF to resume updating
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DDL Replication – Step by Step (1 of 5)
RDF Image TrailRDF Image Trail DDL Stop RDF Update RDFRDF
RDF UpdatersRDF UpdatersRDF Updaters find updates to Depot file from primary
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DDL Replication – Step by step (2 of 5)
RDF Image TrailRDF Image Trail Stop RDF Update RDFRDF
RDF UpdatersRDF Updaters
DDLUpdaters apply updates to Depot file on the backup
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DDL Replication – Step by step (3 of 5)
RDF Image TrailRDF Image Trail RDFRDF
SDR UpdaterSDR UpdaterRDF UpdatersRDF Updaters
DDL
RDF Updaters stop when processing SRU and SDR Updater reads DDL from replicated Depot file
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DDL Replication – Step by step (4 of 5)
SQL Backup
DB
Backup
DB
RDF Image TrailRDF Image Trail RDFRDF
SDR UpdaterSDR UpdaterRDF UpdatersRDF Updaters
DDLSDR applies DDL operation to backup tables
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DDL Replication – Step by step (5 of 5)
RDF Image TrailRDF Image Trail RDFRDF
RDF UpdatersRDF Updaters
SDR UpdaterSDR Updater
Resume Updating
SDR starts RDF Updaters
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SDR Performance
• No significant impact on SQL DDL operations−A few SDR file updates
−Uses SQL’s transaction
• No impact on RDF audit extraction−Extractor to Receiver audit transfer unimpeded
• RDF updating interrupted for DDL execution−Usually under 5 seconds, but more for long DDL ops like
CREATE INDEX or partition split/move
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Monitoring and Manual Control of SDR
• Simple SDRCOM commands
• “STATUS” commands to show DDL details and state of replication
• “HOLD” SDR Updater−SDR issues EMS message when DDL is ready
• “EXECUTE” or “CANCEL” pending statement
• “RELEASE” Updater to resume automatic operation
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SDR Configuration Based on RDF
• SDR works “out of the box”
• SDR requires no separate configuration; all basic settings are adopted from RDF config:−Primary and Backup nodes
−Primary -> Backup volume mapping
− Includes/Excludes, MAPFILE
−REPLICATEPURGE
−NETWORK
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SDR Configuration Options
• To customize SDR, you can change:−Retention: how long to keep extracted DDL
−CreateID: backup table owner
−AutoCreateCatalog: don’t need to synchronize cats
−KeepPHYSVOL: retain Virtual-to-Physical volumes
−UnAuditedDDL: replicate DDL on unaudited tables
−UserTransaction: how to handle DDL in a user tx
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Interesting Situation – User Transaction
• DDL in User Transactions−User can embed DDL in BeginTX/EndTx with database
updates
−Believed to be very rare in the real world – your input is most welcome
−SDR requires user intervention OR assumed commit
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Interesting Situation – Network Tables
• DDL for Distributed Table −Requires coordination of RDF updating on multiple
backup nodes
−User must have RDF/IMPX
−Otherwise, configure SDR network (SDRCOM NETWORK) on all nodes
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NonStop SDR Summary
• Easy to install, easy to use−User interface SDRCOM is like RDFCOM
−Once installed, just leave SDR running
• Must be deployed on primary and target
• Requires SUPER group to configure and control
• Captures DDL on primary system− Independent of RDF and, like TMF-RDF, can be
configured after SQL DDL capture
• Executes DDL on backup−Works closely with RDF to ensure correct sequence
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• Where HP NonStop SDR fits• Product overview• Release Plan• Q&A
Agenda
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General Product Information
• Marketing ID (H, Q) SA47v1
• Product ID T2828 H01−Supported on S-Series, NS-Series, NS BladeSystems
−One version works on all supported NSOS releases
−One version works with RDF IMP, IMPX, and ZLT except:• T0346ABJ (superceded by T0346ABR)
• T0346ABO (superceded by T0346ABS)
• Base release T0346H08
• Targeted for release late October
• Try it – you’ll like it!
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NonStop Remote Database Facility• High throughput and low CPU
utilization, out of the box
• White hot standby included
• Focused on data integrity (nodes in sync)
• Active/active split reciprocal
• Easy installation and maintenance
• March 2009: 9 enhancements− availability, performance,
manageability
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Look for us in Mannheim
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Stay prepared, be NonStop – test!
• [email protected]• [email protected]• hp.com/go/nonstopcontinuity• Thanks!• Questions?