How can I use scsi_debug to test device-mapper-multipath
The scsi_debug kernel module is a 'fake' scsi device driver that can be configured in various ways for testing the RHEL scsi layers, including device-mapper-multipath.
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The official (upstream) documentation for scsi_debug and all of the kernel module parameters is at http://sg.danny.cz/sg/sdebug26.html
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For RHEL6, RHEL7 and Fedora - the scsi_debug kernel module...
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