diff options
| author |   dlg <dlg@openbsd.org> | 2011-04-06 11:54:56 +0000 |
|---|---|---|
| committer | dlg <dlg@openbsd.org> | 2011-04-06 11:54:56 +0000 |
| commit | 356137b90bdd4d2a404b6cd373d744be516d2f59 (patch) | |
| tree | f9f57f02cb092aea826072aa3795fe9566c49ada /share/man/man4/mpath.4 | |
| parent | Define NULL as a void * instead of a long integer, as required by Single Unix. (diff) | |
| download | wireguard-openbsd-356137b90bdd4d2a404b6cd373d744be516d2f59.tar.xz wireguard-openbsd-356137b90bdd4d2a404b6cd373d744be516d2f59.zip | |
try to document the mpath bits i put in yesterday. thanks to miod for the
words that got me going.
we might not want to make mpath look as special as it is in the scsi
manpage, but i'll let others make the call and fix it in the tree.
Diffstat (limited to 'share/man/man4/mpath.4')
| -rw-r--r-- | share/man/man4/mpath.4 | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/share/man/man4/mpath.4 b/share/man/man4/mpath.4 index 3c66f895b15..7414d9c1d06 100644 --- a/share/man/man4/mpath.4 +++ b/share/man/man4/mpath.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: mpath.4,v 1.2 2009/08/09 17:57:43 jmc Exp $ +.\" $OpenBSD: mpath.4,v 1.3 2011/04/06 11:54:56 dlg Exp $ .\" .\" Copyright (c) 2009 David Gwynne <dlg@openbsd.org> .\" @@ -14,27 +14,35 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: August 9 2009 $ +.Dd $Mdocdate: April 6 2011 $ .Dt MPATH 4 .Os .Sh NAME .Nm mpath .Nd SCSI multipath .Sh SYNOPSIS +.Cd "emc* at scsibus?" +.Cd "rdac* at scsibus?" +.Cd "sym* at scsibus?" +.Pp .Cd "mpath0 at root" .Cd "scsibus* at mpath?" .Sh DESCRIPTION .Nm -intercepts the attachment of devices on physical SCSI buses -that could be available via several paths. -These devices are then presented via the -.Xr scsibus 4 -attached to -.Nm . +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 +.Xr sym 4 , +as backends to a single device attached to its own +.Xr scsibus 4 . .Sh SEE ALSO .Xr ioctl 2 , +.Xr emc 4 , .Xr intro 4 , -.Xr scsi 4 +.Xr rdac 4 , +.Xr scsi 4 , +.Xr sym 4 .Sh HISTORY The .Nm |