HPlogo Communicator 3000 MPE/iX Release 6.0 (Platform Software Release C.60.00): HP 3000 MPE/iX Computer Systems > Chapter 3 System Management

Transaction Manager

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Overview

Transaction Manager (XM) is an integral part of the MPE/iX file system. It provides a facility to log all the transactions that are done on a file that is attached to XM via a system intrinsic. It ensures data integrity by protecting such files across system crashes. Three new enhancements are added to XM with 6.0 to provide improved performance and reliability. The enhancements are the following:

  • System Log Expansion

  • Transaction Copy-forward

  • Checkpoint Improvement

For more technical information, refer to "Transaction Manager" in Chapter 10, "Technical Articles."

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