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2044861 - Server boot sequence error messages: "Attempt to set zfs file to Direct i/o mode failed." and “The device does not support directio.” - SAP ASE


  • If ASE has been installed on a ZFS file system, the following error messages may be returned during ASE bootup:

    Attempt to set zfs file '/newzfs/chiachen/sp121/data/master.dat' to Direct i/o mode failed, error: Inappropriate ioctl for device
    The device does not support directio. '/newzfs/chiachen/sp121/data/master.dat' will be activated using dsync instead of directio.



SAP Adaptive Server Enterprise (ASE) All Versions


SAP Adaptive Server Enterprise 15.7 ; Sybase Adaptive Server Enterprise 15.0 ; Sybase Adaptive Server Enterprise 15.5


file system, raw device, boot sequence, Direct I/O , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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