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RDAC(4) Device Drivers Manual RDAC(4)

rdacEngenio/LSI RDAC SCSI devices

rdac* at scsibus?

The rdac driver attaches to Engenio/LSI RDAC SCSI logical units. Each path to an active service processor attached to by rdac is presented to mpath(4) which uses it as a backend to the logical unit attached to its own scsibus(4).

ioctl(2), intro(4), mpath(4), scsi(4)

The rdac driver first appeared in OpenBSD 5.0.

David Gwynne <>.

July 16, 2013 OpenBSD-current