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SYM(4)                   BSD Kernel Interfaces Manual                   SYM(4)

NAME
     sym -- symmetric access SCSI devices

SYNOPSIS
     sym* at scsibus?

DESCRIPTION
     The sym driver attaches to SCSI logical units that support symmetric
     access, i.e. all paths to the device are as good as each other.  Each
     path attached to by sym is presented to mpath(4) which uses it as a back-
     end to the logical unit attached to its own scsibus(4).

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

HISTORY
     The sym driver first appeared in OpenBSD 5.0.

AUTHORS
     David Gwynne <dlg@openbsd.org>.

BSD                             March 30, 2017                             BSD