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authorJason McIntyre <jmc@cvs.openbsd.org>2010-04-01 17:06:56 +0000
committerJason McIntyre <jmc@cvs.openbsd.org>2010-04-01 17:06:56 +0000
commit9698d2b8e3176084d4d635d12f1e2fdd725ef5c1 (patch)
treef63ea23a1c5f801ecbb215234160ada4dc8bef52 /share/man/man4
parent8af4a82e8387c83fb0949f0f1c8a9ab7ce9120e7 (diff)
WARNINGS -> CAVEATS, and a little neccessary cleanup;
Diffstat (limited to 'share/man/man4')
-rw-r--r--share/man/man4/raid.446
1 files changed, 23 insertions, 23 deletions
diff --git a/share/man/man4/raid.4 b/share/man/man4/raid.4
index f338c9cf3c3..7445c6fb384 100644
--- a/share/man/man4/raid.4
+++ b/share/man/man4/raid.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: raid.4,v 1.30 2008/06/26 05:42:07 ray Exp $
+.\" $OpenBSD: raid.4,v 1.31 2010/04/01 17:06:55 jmc Exp $
.\" $NetBSD: raid.4,v 1.20 2001/09/22 16:03:58 wiz Exp $
.\"
.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -54,7 +54,7 @@
.\" any improvements or extensions that they make and grant Carnegie the
.\" rights to redistribute these changes.
.\"
-.Dd $Mdocdate: June 26 2008 $
+.Dd $Mdocdate: April 1 2010 $
.Dt RAID 4
.Os
.Sh NAME
@@ -289,26 +289,6 @@ Additional debug information can be sent to the console by specifying:
.Bd -unfilled -offset indent
option RAIDDEBUG
.Ed
-.Sh WARNINGS
-Certain RAID levels (1, 4, 5, 6, and others) can protect against some
-data loss due to component failure.
-However the loss of two components of a RAID 4 or 5 system, or the loss
-of a single component of a RAID 0 system, will result in the entire
-filesystems on that RAID device being lost.
-RAID is
-.Ar NOT
-a substitute for good backup practices.
-.Pp
-Recomputation of parity
-.Ar MUST
-be performed whenever there is a chance that it may have been
-compromised.
-This includes after system crashes, or before a RAID
-device has been used for the first time.
-Failure to keep parity correct will be catastrophic should a component
-ever fail -- it is better to use RAID 0 and get the additional space and
-speed, than it is to use parity, but not keep the parity correct.
-At least with RAID 0 there is no perception of increased data security.
.Sh FILES
.Bl -tag -width /dev/XXrXraidX -compact
.It Pa /dev/{,r}raid*
@@ -319,9 +299,9 @@ device special files.
.Xr ccd 4 ,
.Xr sd 4 ,
.Xr wd 4 ,
-.Xr MAKEDEV 8 ,
.Xr config 8 ,
.Xr fsck 8 ,
+.Xr MAKEDEV 8 ,
.Xr mount 8 ,
.Xr newfs 8 ,
.Xr raidctl 8
@@ -352,3 +332,23 @@ driver first appeared in
.Nx 1.4
from where it was ported to
.Ox 2.5 .
+.Sh CAVEATS
+Certain RAID levels (1, 4, 5, 6, and others) can protect against some
+data loss due to component failure.
+However the loss of two components of a RAID 4 or 5 system, or the loss
+of a single component of a RAID 0 system, will result in the entire
+filesystems on that RAID device being lost.
+RAID is
+.Ar NOT
+a substitute for good backup practices.
+.Pp
+Recomputation of parity
+.Ar MUST
+be performed whenever there is a chance that it may have been
+compromised.
+This includes after system crashes, or before a RAID
+device has been used for the first time.
+Failure to keep parity correct will be catastrophic should a component
+ever fail -- it is better to use RAID 0 and get the additional space and
+speed, than it is to use parity, but not keep the parity correct.
+At least with RAID 0 there is no perception of increased data security.