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The CA MDB. Revised May 16 2006. CA MDB: Summary. Primary version based on Ingres 3.0 Other versions based on MS SQL Server, Oracle Includes thousands of tables, views, indexes Built by combining database models from many CA products. How do you build an MDB?. Single database instance

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the ca mdb

The CA MDB

Revised May 16 2006

ca mdb summary
CA MDB: Summary
  • Primary version based on Ingres 3.0
  • Other versions based on MS SQL Server, Oracle
  • Includes thousands of tables, views, indexes
  • Built by combining database models from many CA products
how do you build an mdb
How do you build an MDB?
  • Single database instance
  • Use unique data types
  • Consistent schemas
    • Naming conventions
    • Stored procedures
    • Design patterns
  • Unified sets of tables for specific entities/objects
where is the mdb today
Where is the MDB today?
  • Single database instance
  • Multiple definitions for some data elements
today continued
Today (continued)
  • Mostly consistent schemas
    • Naming conventions
    • Stored procedures
  • One unified set of tables: for assets
  • eIAM stores applications’ authentication, authorization, access control information
  • May adopt industry standards (e.g. CIM) when possible
  • Single set of data owners, permissions
unified model for assets
Unified model for assets
  • Set of tables defined by developers for:
    • ServiceDesk
    • Unicenter NSM
    • Argis
    • Unicenter Asset Management
  • Entries made by one application visible to all
  • DB triggers used to update other tables, perform additional operations when assets are added.
revolutionary change
Revolutionary Change
  • Applications can access other app’s data directly
  • Simplifies reporting, analysis across apps
  • Multiple products can share database server
what the current mdb offers
What the current MDB offers
  • Central Management
  • Standard Configurations
  • Standard Patch and Upgrade
  • A set of best practices for:
    • Scalability
    • Fault Tolerance
    • Securability (firewall and NAT)
    • MDB Federation
what the current mdb offers1
What the current MDB offers
  • Product Specific Federation
    • Core Bridge
    • Service Desk multiple MDBs, contact replication, and request broker
    • Desktop and Server Management hierarchical selective replication (2-tier but n-tier designed)
what the current mdb offers2
What the current MDB offers
  • An ERwin physical model-based collection of all tables & columns used by the CA products
  • A physical model that was assembled by combining DDL from various product teams
  • A breakdown of tables & columns into Subject Areas that map to the respective CA products
  • A partial definition of the relationships between the tables that comprise MDB
what the current mdb offers3
What the current MDB offers
  • A model that supports basic IP-address based asset reconciliation capabilities
  • A model that recognizes the central importance of asset and provides some modeling of the complexity of asset
    • Asset Logical model is documented
    • Tools used in conjunction with ADT allow asset import using the common object registration API (CORA)
summary
Summary
  • MDB is used in r11 products and value is huge
  • Most applications co-exist, with selective sharing
  • Several “best in class” products coordinate use of, and share data – especially for assets and users
  • Application-specific interfaces, communications are still used
  • Deployment options generally rich
common misunderstandings
Common Misunderstandings…
  • MDB’s availability on a specific DB does not mean all applications support that DB
  • No common method/API for modifying all data in MDB
  • Not used consistently by all CA products
  • MDB is not a CMDB
asset information scenarios
Asset Information Scenarios
  • ServiceDesk and Argis:
    • As Service Desk is about to enter data about an asset, the user can search through existing assets in the MDB, including those created by Argis.
    • Users can pick an existing asset and avoid data entry, or the addition of a duplicate entry.
  • NSM and UAM:
    • When Discovery runs, every object is registered as an asset.  UAM is triggered by asset registration and can push out an agent to do a full hardware and software inventory.
    • Trigger provides the “glue” between "continuous discovery" and UAM.
  • Result: When an incident is recorded in ServiceDesk, SD will check registered assets, even those discovered by NSM, and the inventory info will be available as well.
limitations
Limitations
  • No public (client) API for asset definition through the MDB
    • Definitions may change, or may rely upon undocumented behavior or business logic
    • Exception: UAPM packages a copy of ADT with CORA integration to add assets
  • Existing application-specific APIs should be used (for now)
deployment choices
Deployment Choices
  • One product, one MDB instance
  • Multiple products, one MDB instance
  • Multiple products, multiple MDB instances
integration
Integration
  • Model level: normalized data
  • Database level
    • triggers, stored procedures
  • Application level
    • API, scripts
    • “Bridge” for CORe
  • Presentation level
    • Portal, Reporter, F&T
deployment issues
Deployment Issues
  • Ingres issues
    • Performance – you architect in scalability
  • MDB issues
    • May not want information shared between applications; e.g. UAM assets become managed objects in NSM
    • Legally may be unable to put all data in one MDB
  • Application issues?
moving forward mdb
Moving Forward – MDB
  • Distributed installation and access services
  • Federation services
  • Abstraction Layers
  • Connectors
  • Platform and additional RDBMS Support
  • “ Hot” upgrade services
  • Granular DDL definition/extension
moving forward mdb1
Moving Forward – MDB
  • Some Techie Details Under Study:
  • Reduce data type duplication
  • Normalize data model
  • Add common methods across applications for:
    • Extension of models
    • Entity addition, updates
  • Address MDB-specific issues:
    • Filtering of shared data
    • Replication vs. application distribution
moving forward mdb2
Moving Forward – MDB
  • More Techie Details Under Study :
  • A model that supports a central Asset registry to which all physical instances can register Assets
  • A model that supports a technical solution without a single point of failure
  • A model that can scale in a predictable manner
  • A model that supports a central authentication and consistent data authorization facility
  • A model documented at the entity and attribute level
moving forward mdb3
Moving Forward – MDB
  • Even More Details Under Study :
  • A model in which non IP-address based assets are accommodated
  • A model that recognizes and registers assets with satisfactory performance
  • A model in which critical taxonomies (Owned versus Discovered Asset, Logical versus Physical Asset, Locations, Organizations, Contacts/Users, Services, and Configuration) are normalized