Enabling path failover for the sg interface

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Through a collaboration effort that is named join driver, control path failover is supported through the sg interface, by using the latest lin_tape driver version on RHEL over Intel only.

Note: It is important to review hardware and software requirements before path failover is enabled. See Path failover and load balancing.

To enable it, the lin_tape_as_sfmp parameter must be set at /etc/modprobe.d/lin_tape.conf as follows:

options lin_tape alternate_pathing=1
options lin_tape lin_tape_as_sfmp=1

If lin_tape is already installed, follow the Uninstallation procedure.

Follow the Installation procedure by using

-with sfmp at rpmbuild.