How To Fix RT857 - SMT Mode (On, Off)


RT857 - Overview

  • Message type: E = Error

  • Message class: RT - Monitoring infrastructure MSG and alert texts

  • Message number: 857

  • Message text: SMT Mode (On, Off)

  • Show details Hide details
  • What causes this issue?

    Denotes whether processor simultaneous multi-threading is active. The
    simultaneous multi-threading mode allows processors to have thread level
    parallelism at the instruction level.

    System Response

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    How to fix this error?

    Procedure for System Administrators


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message RT857 - SMT Mode (On, Off) ?
    The SAP error message RT857 related to SMT (Simultaneous Multithreading) mode typically indicates an issue with the configuration of the system's hardware or the settings in the SAP environment regarding the use of SMT. Here’s a breakdown of the cause, potential solutions, and related information:
    
    Cause: SMT Configuration: The error may arise if the SMT mode is not properly configured on the server. SMT allows multiple threads to run on a single physical core, which can improve performance but may also lead to issues if not managed correctly. Hardware Limitations: The server hardware may not support SMT, or it may be disabled in the BIOS settings. SAP Kernel Version: The version of the SAP kernel being used may not be compatible with the current SMT settings. Operating System Settings: The operating system may have settings that conflict with the SMT configuration.
    Solution: Check BIOS Settings: Ensure that SMT is enabled in the BIOS settings of the server.

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Related SAP Error Messages

Click the links below to see the following related messages:
  • RT856 Partition Type
    What causes this issue? Denotes whether an LPAR is a Dedicated LPAR or a Shared Pool LPAR. Shared Pool LPAR's allow for a sharing of resources, ...

  • RT855 Partition ID
    What causes this issue? Denotes the partition identifier.System Response The system issues an error message and will not allow you to continue with ...

  • RT858 Number of SMT Threads
    What causes this issue? Denote the number parallel (SMT) threads the processor is currently supporting.System Response The system issues an error me...

  • RT859 Capped (On, Off)
    What causes this issue? Denotes whether a Shared Pool LPAR can exceed its defined physical CPU entitlement by acquiring additional resources from an ...

Click on this link to search all SAP messages.


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