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-rw-r--r--multipath/multipath.815
1 files changed, 13 insertions, 2 deletions
diff --git a/multipath/multipath.8 b/multipath/multipath.8
index b9436e5..56f8703 100644
--- a/multipath/multipath.8
+++ b/multipath/multipath.8
@@ -25,7 +25,7 @@ multipath \- Device mapper target autoconfig.
.RB [\| \-b\ \c
.IR bindings_file \|]
.RB [\| \-d \|]
-.RB [\| \-h | \-l | \-ll | \-f | \-t | \-F | \-B | \-c | \-q | \|-r | \|-i | \-a | \|-u | \-w | \-W \|]
+.RB [\| \-h | \-l | \-ll | \-f | \-t | \-F | \-B | \-c | \-C | \-q | \-r | \-i | \-a | \-u | \-U | \-w | \-W \|]
.RB [\| \-p\ \c
.IR failover | multibus | group_by_serial | group_by_prio | group_by_node_name \|]
.RB [\| \-R\ \c
@@ -86,7 +86,7 @@ Flush all unused multipath device maps.
.
.TP
.B \-t
-Print internal hardware table to stdout.
+Display the currently used multipathd configuration.
.
.TP
.B \-r
@@ -110,6 +110,12 @@ Set user_friendly_names bindings file location. The default is
Check if a block device should be a path in a multipath device.
.
.TP
+.B \-C
+Check if a multipath device has usable paths. This can be used to
+test whether or not I/O on this device is likely to succeed. The command
+itself doesn't attempt to do I/O on the device.
+.
+.TP
.B \-q
Allow device tables with \fIqueue_if_no_path\fR when multipathd is not running.
.
@@ -123,6 +129,11 @@ Check if the device specified in the program environment should be
a path in a multipath device.
.
.TP
+.B \-U
+Check if the device specified in the program environment is a multipath device
+with usable paths. See \fB-C\fB.
+.
+.TP
.B \-w
Remove the WWID for the specified device from the WWIDs file.
.