Table of Contents

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  1. Preface
  2. Analyst Service
  3. Content Management Service
  4. Data Integration Service
  5. Data Integration Service Architecture
  6. Data Integration Service Management
  7. Data Integration Service Grid
  8. Data Integration Service Applications
  9. Metadata Manager Service
  10. Model Repository Service
  11. PowerCenter Integration Service
  12. PowerCenter Integration Service Architecture
  13. High Availability for the PowerCenter Integration Service
  14. PowerCenter Repository Service
  15. PowerCenter Repository Management
  16. PowerExchange Listener Service
  17. PowerExchange Logger Service
  18. SAP BW Service
  19. Search Service
  20. System Services
  21. Test Data Manager Service
  22. Web Services Hub
  23. Application Service Upgrade
  24. Application Service Databases
  25. Connecting to Databases from Windows
  26. Connecting to Databases from UNIX
  27. Updating the DynamicSections Parameter of a DB2 Database

PowerCenter Integration Service Failover and Recovery Configuration

PowerCenter Integration Service Failover and Recovery Configuration

During failover and recovery, the PowerCenter Integration Service needs to access state of operation files and process state information.
The state of operation files store the state of each workflow and session operation. The PowerCenter Integration Service always stores the state of each workflow and session operation in files in the $PMStorageDir directory of the PowerCenter Integration Service process.
Process state information includes information about which node was running the master PowerCenter Integration Service process and which node was running each session. You can configure the PowerCenter Integration Service to store process state information on a cluster file system or in the PowerCenter repository database.

Store High Availability Persistence on a Cluster File System

By default, the PowerCenter Integration Service stores process state information along with the state of operation files in the $PMStorageDir directory of the Integration Service process. You must configure the $PMStorageDir directory for each PowerCenter Integration Service process to use the same directory on a cluster file system.
Nodes that run the PowerCenter Integration Service must be on the same cluster file system so that they can share resources. Also, nodes within a cluster must be on the cluster file system’s heartbeat network. Use a highly available cluster file system that is configured for I/O fencing. The hardware requirements and configuration of an I/O fencing solution are different for each file system.
The following cluster file systems are certified by Informatica for use for PowerCenter Integration Service failover and session recovery:
Storage Array Network
Veritas Cluster Files System (VxFS)
IBM General Parallel File System (GPFS)
Network Attached Storage using NFS v3 protocol
EMC UxFS hosted on an EMV Celerra NAS appliance
NetApp WAFL hosted on a NetApp NAS appliance
Contact the file system vendors directly to evaluate which file system matches your requirements.

Store High Availability Persistence in a Database

You can configure the PowerCenter Integration Service to store process state information in database tables. When you configure the PowerCenter Integration Service to store process state information in a database, the service still stores the state of each workflow and session operation in files in the $PMStorageDir directory. You can configure the $PMStorageDir directory to use a POSIX compliant shared file system. You do not need to use a cluster file system.
Configure the PowerCenter Integration Service to store process state information in database tables in the advanced properties. The PowerCenter Integration Service stores process state information in persistent database tables in the associated PowerCenter repository database.
During failover, automatic recovery of workflows resume when the service process can access the database tables.