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authorIgor Sobrado <sobrado@cvs.openbsd.org>2009-10-11 14:29:50 +0000
committerIgor Sobrado <sobrado@cvs.openbsd.org>2009-10-11 14:29:50 +0000
commit75c9279c791ec4276d9bbb969aa18b7dd9356260 (patch)
tree969f575a04187904069403b0113df5ede8d8abed /share
parent854fb319f4a5b98cb71c506564a7ca433eb5af88 (diff)
emphasize the parity classes supported by current softraid disciplines.
tweaked by jmc@ ok jmc@
Diffstat (limited to 'share')
-rw-r--r--share/man/man4/softraid.412
1 files changed, 8 insertions, 4 deletions
diff --git a/share/man/man4/softraid.4 b/share/man/man4/softraid.4
index 865a64b8d48..d56f9e132ba 100644
--- a/share/man/man4/softraid.4
+++ b/share/man/man4/softraid.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: softraid.4,v 1.24 2009/07/20 04:12:25 cnst Exp $
+.\" $OpenBSD: softraid.4,v 1.25 2009/10/11 14:29:49 sobrado Exp $
.\"
.\" Copyright (c) 2007 Todd T. Fries <todd@OpenBSD.org>
.\" Copyright (c) 2007 Marco Peereboom <marco@OpenBSD.org>
@@ -15,7 +15,7 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: July 20 2009 $
+.Dd $Mdocdate: October 11 2009 $
.Dt SOFTRAID 4
.Os
.Sh NAME
@@ -80,13 +80,17 @@ Unlike traditional RAID 1,
.Nm
supports the use of more than two chunks in a RAID 1 setup.
.It RAID 4
-A striping discipline with a fixed parity chunk.
+A striping discipline with a
+.Em fixed parity
+chunk.
It stripes data across chunks and provides parity to prevent data loss of
a single chunk failure.
Read performance is increased,
though write performance is limited by the parity chunk.
.It RAID 5
-A striping discipline with floating parity across all chunks.
+A striping discipline with
+.Em floating parity
+across all chunks.
It stripes data across chunks and provides parity to prevent data loss of
a single chunk failure.
Read performance is increased;