MPATH(4) - Device Drivers Manual #

MPATH(4) - Device Drivers Manual

NAME #

mpath - SCSI multipath

SYNOPSIS #

emc* at scsibus? hds* at scsibus? rdac* at scsibus? sym* at scsibus?

mpath0 at root

DESCRIPTION #

mpath provides access, I/O multiplexing, and failover support to SCSI logical units that can have multiple physical connections to the system. It uses connections presented by path drivers, for example sym(4), as backends to a single device attached to its own scsibus(4).

SEE ALSO #

ioctl(2), emc(4), hds(4), intro(4), rdac(4), scsi(4), sym(4)

HISTORY #

The mpath driver first appeared in OpenBSD 4.7.

AUTHORS #

David Gwynne <dlg@openbsd.org>.

OpenBSD 7.5 - July 16, 2013