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  • 1.  Any issues with running AIX Toolbox for Linux Application rpm packages on a rootvg disk that has a disk block size of 4096?

    Posted Thu February 04, 2021 08:06 PM
    Hello:  We are purchasing some new Power 9 Servers and in the past we've always purchased a physical disk drive with a 512 byte block size for rootvg.  The VAR that we are using to purchase these Power 9 Servers through is recommending that we change to a physical disk (whether a HDD or SSD) that uses the 4096 byte block size.  I know that IBM would prefer customers use the 4096 byte block size as well.

    The AIX OS's that we are running our LPAR's on support the 4096 byte block size but has anyone had any issues in running any "AIX Toolbox for Linux Application" rpm packages on a rootvg disk with a 4096 byte block size?  Listed below are the rpm packages that we currently have installed.

    # rpm -qa
    db-4.8.24-3.ppc
    gettext-0.19.7-1.ppc
    tcl-8.4.7-3.ppc
    sudo-1.8.21p2-1.ppc
    bzip2-1.0.6-2.ppc
    unzip-6.0-3.ppc
    AIX-rpm-7.2.4.1-45.ppc
    expect-5.42.1-3.ppc
    openldap-2.4.40-2.ppc
    tk-8.4.7-3.ppc
    bash-4.4-3.ppc
    zlib-1.2.11-1.ppc

    Thanks,
    Brady

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    Brady Stoner
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  • 2.  RE: Any issues with running AIX Toolbox for Linux Application rpm packages on a rootvg disk that has a disk block size of 4096?

    Posted Fri February 05, 2021 06:21 PM
    We were able to install all the noted RPM packages over "NVMe 4K Flash Disk" on e980, no issues.

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    Selvamurugan Kuppusamy
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    Original Message


  • 3.  RE: Any issues with running AIX Toolbox for Linux Application rpm packages on a rootvg disk that has a disk block size of 4096?

    Posted Sun February 07, 2021 09:22 AM
    ​Hi Selvamurugan:  Thank you very much for taking the time to install those rpm packages to see if they would install successfully.  Very much appreciated!!

    Just so that I understand, being that these rpm packages installed successfully, we can make the assumption that the 4096 byte block size shouldn't be an issue when these applications are called to be used then?

    Thanks!
    Brady


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    Brady Stoner
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    Original Message


  • 4.  RE: Any issues with running AIX Toolbox for Linux Application rpm packages on a rootvg disk that has a disk block size of 4096?

    Posted Tue February 09, 2021 10:26 AM
    Edited by SANKET RATHI Tue February 09, 2021 11:16 AM
    Hi Brady,
    All the rpm packages and applications use filesystem and do not use disk directly.
    Filesystem and LVM hide the details of disk block size and provide a flat space for applications.
    I do not see any reason why any of the rpm should have any issue if you are running on 4096 block size disk.

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    SANKET RATHI
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    Original Message


  • 5.  RE: Any issues with running AIX Toolbox for Linux Application rpm packages on a rootvg disk that has a disk block size of 4096?

    Posted Tue February 09, 2021 10:50 AM
    ​Hi Sanket:  Thanks for the explanation as to why this shouldn't be an issue for the rpm packages.  That makes sense.

    Thanks again for your help!
    Brady

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    Brady Stoner
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    Original Message