gmirror.8:

  Note the default balancing algorithm and stripe size.

geom_mirror.c:
  Slightly friendlier error message.

Reviewed by:	pjd

2 files changed, 4 insertions, 2 deletions

diff --git a/sbin/geom/class/mirror/geom_mirror.c b/sbin/geom/class/mirror/geom_mirror.c
index 74be6e5..00afc28 100644
--- a/sbin/geom/class/mirror/geom_mirror.c
+++ b/sbin/geom/class/mirror/geom_mirror.c
@@ -195,7 +195,7 @@ mirror_label(struct gctl_req *req)
 	}
 	bal = balance_id(str);
 	if (bal == -1) {
-		gctl_error(req, "Wrong balance algorithm.");
+		gctl_error(req, "Invalid balance algorithm.");
 		return;
 	}
 	md.md_balance = bal;
diff --git a/sbin/geom/class/mirror/gmirror.8 b/sbin/geom/class/mirror/gmirror.8
index e789c92..1c021ef 100644
--- a/sbin/geom/class/mirror/gmirror.8
+++ b/sbin/geom/class/mirror/gmirror.8
@@ -138,6 +138,7 @@ Use round-robin algorithm when choosing component to read.
 .It Cm split
 Split read requests, which are bigger than or equal to slice size on N pieces,
 where N is the number of active components.
+This is the default balance algorithm.
 .El
 .It Fl h
 Hardcode providers' names in metadata.
@@ -148,7 +149,8 @@ When using the
 .Cm split
 balance algorithm and an I/O READ request is bigger than or equal to this value,
 the I/O request will be split into N pieces, where N is the number of active
-component.
+components.
+Defaults to 4096 bytes.
 .El
 .It Cm clear
 Clear metadata on the given providers.