X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fdoc%2Flctl-get_param.8;h=9ea1529e6a9c3e82f750fbf9d7f1cb1a4f4f597a;hb=955e38051765609fe3a661035c0fab2cfca733ce;hp=e1c992d05963ea443ef4b63962f21359324425ad;hpb=c5bec6a88a927506df5edaaec5a24602b32c6360;p=fs%2Flustre-release.git

diff --git a/lustre/doc/lctl-get_param.8 b/lustre/doc/lctl-get_param.8
index e1c992d..9ea1529 100644
--- a/lustre/doc/lctl-get_param.8
+++ b/lustre/doc/lctl-get_param.8
@@ -3,7 +3,7 @@
 lctl-get_param \- retrieve configuration parameters
 .SH SYNOPSIS
 .br
-.IR "\fBlctl get_param " [ -F "] [" -n | -N "] [" -R "] <" parameter ...>
+.IR "\fBlctl get_param " [ -F "] [" -H "] [" -n | -N "] [" -R "] <" parameter ...>
 .br
 .SH DESCRIPTION
 Get the value of the named Lustre or LNet
@@ -36,6 +36,11 @@ parameters, respectively.
 is equivalent to
 .BR "lctl list_param -F" .
 .TP
+.B -H
+Prefix each parameter value line with the parameter name, as a header. It
+also print a line for empty values. It could be useful when wildcards are
+used and filtering the output.
+.TP
 .B -n
 Print only the parameter value and not parameter name.  This may be confusing
 if multiple parameter names are specified, as the parameters are not
@@ -47,6 +52,12 @@ useful when using patterns.
 .TP
 .B -R
 Recursively show all of the parameter names below the specified name.
+.TP
+.B -y
+Some paramters can be presented in a YAML format but are not by default. This
+will format the parameter data in YAML. If the YAML provides a source: field
+it can be suppressed with the -n option.
+
 .SH EXAMPLES
 .B $ lctl get_param osc.*.max_pages_per_rpc
 .br
@@ -73,6 +84,26 @@ osc.testfs-OST0000-osc-ffff8803c9c0f000.max_rpcs_in_flight=8
 osc.testfs-OST0001-osc-ffff8803c9c0f000.max_rpcs_in_flight=8
 .br
 osc.testfs-OST0002-osc-ffff8803c9c0f000.max_rpcs_in_flight=8
+.br
+.B $ lctl get_param -n devices
+.br
+ 0 UP osd-ldiskfs MGS-osd MGS-osd_UUID 4
+.br
+.B $ lctl get_param -y devices
+.br
+devices:
+.br
+- index: 0
+.br
+  status: UP
+.br
+  type: osd-ldiskfs
+.br
+  name: MGS-osd
+.br
+  uuid: MGS-osd_UUID
+.br
+  refcount: 4
 .SH SEE ALSO
 .BR lustre (7),
 .BR lctl (8),