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    SubjectRe: SCSI device probing non-deterministic in 5.3
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    On 10/4/19 11:39 AM, Bart Van Assche wrote:
    > Have you already had a look at the /dev/disk/by-path directory? An
    > example of the contents of that directory:
    >
    > $ (cd /dev/disk/by-path && ls -l | grep /s)
    > lrwxrwxrwx 1 root root  9 Oct  3 16:49 pci-0000:00:02.0-ata-1 -> ../../sda
    > lrwxrwxrwx 1 root root  9 Oct  3 16:49 pci-0000:00:08.0-scsi-0:0:0:1 ->
    > ../../sr0
    >
    > Have you considered to use these soft links in /etc/fstab?
    >
    > In case using these links would be impractical: have you considered to
    > add a udev rule that creates H:C:I:L soft links under a subdirectory of
    > /dev, that makes these soft links point at the /dev/sd* device nodes and
    > to use these soft links in /etc/fstab? That's probably a much more
    > elegant solution than what has been proposed above.
    >
    > As one can see the information that is needed to implement such a udev
    > rule is already available in sysfs:
    >
    > $ (cd /sys/class/scsi_device && ls -ld */device/block/*)
    > drwxr-xr-x 9 root root 0 Oct  3 16:48 2:0:0:1/device/block/sr0
    > drwxr-xr-x 9 root root 0 Oct  3 16:48 3:0:0:0/device/block/sda
    >
    > Bart.

    Thanks for the reply! I wasn't aware that sysfs exposed the mapping that
    way. That is very useful, and we should be able to utilize that.

    Regards,
    Bradley LaBoon

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