LU-930 doc: add audit_mode in lctl-nodemap-modify man page

audit_mode is a nodemap property added by patch under LU-9727.
It can be set via 'lctl nodemap_modify' command, so add reference
in corresponding man page.

Test-Parameters: trivial
Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Change-Id: Ic600756ada257e3e2cfe92a1c30e9b7342f2e4d1
Reviewed-on: https://review.whamcloud.com/34088
Tested-by: Jenkins
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>

diff --git a/lustre/doc/lctl-nodemap-modify.8 b/lustre/doc/lctl-nodemap-modify.8
index 846eb99..6dfd0be 100644 (file)
--- a/lustre/doc/lctl-nodemap-modify.8
+++ b/lustre/doc/lctl-nodemap-modify.8
@@ -53,6 +53,16 @@ trusted are set to off and the user is not mapped.
 Note: directory entries cached by a Lustre client may be visible to unknown
 users located on the same client, though the contents of the files will not be.
 .RE
+.PP
+audit_mode
+.RS 4
+Defaults to on, which lets clients record file system access events to the
+Changelogs, if Changelogs are otherwise activated. If set to 0, events from
+these clients are not logged into the Changelogs, no matter if Changelogs are
+activated or not.
+The reason not to record file system events from given clients is to prevent
+some nodes (e.g. backup, HSM agent nodes) from flooding the Changelogs.
+.RE
 
 .I value
 is the value to set for the property. Should be 0 or 1 for admin and trusted.