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Status Future consideration
Workspace PowerHA for AIX
Created by Guest
Created on Dec 30, 2020

trustchk error message issued druiing bosboot after changing powerHA syncd value

On AIX and powerHA we receive a trustchk error message when performing bosboot after changing the synd value from the default value of 60 to 10.

Idea priority Medium
  • Guest
    Jan 28, 2021

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - PowerHA
    Component - PowerHA for AIX
    Operating system - IBM AIX
    Source - Client

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM AIX
    Component - Product functionality
    Operating system - IBM AIX
    Source - Client

  • Guest
    Jan 19, 2021

    Thanks for the clarification as to what exactly is being requested in the RFE. IBM will continue to review this request and update the RFE as evaluation progresses

  • Guest
    Jan 15, 2021

    If it were the case that rc.boot was edited I would never have submitted an RFE. The syncd value was changed by issuing the HA command /usr/es/sbin/cluster/utilities/clchsyncd - an IBM supplied command used to modify a parameter of an IBM product. This is why I feel IBM should address the issue.

  • Guest
    Jan 14, 2021

    AIX is not considering changing the warning message generated when performing bosboot after changing the synd value by editing rc.boot. AIX does provide the means to override the syncd interval for j2 filesystems, and that is the j2_syncByVFS tunable via the ioo command:

    Here is the output from the help command:
    > ioo -h j2_syncByVFS
    Help for tunable j2_syncByVFS:
    Specifies the number of seconds to wait between calls to sync a JFS2 file system. This value supercedes the value specified on the syncd command line.
    Default: 0
    Range: 0 - 86400
    Type: Dynamic
    Unit: seconds
    The value specified for this control is the number of seconds between iterations of the sync processing. That is, the sync daemon will wait 'j2_syncByVFS' seconds between initiating calls to syncvfs for JFS2 file systems. This overrides the time specified on the syncd command line.

    question: If IBM were to enhance the ioo command such that the syncd value applies system wide regardless of the filesytem type, would that be sufficient to address the concerns in this RFE?