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authorNeil Brown <neilb@suse.de>2003-07-28 23:59:00 +0000
committerNeil Brown <neilb@suse.de>2003-07-28 23:59:00 +0000
commitaa88f531b468349982905ecacf11da2cb6678ce6 (patch)
tree9a138bc93ff24d041d638a2dcabe3fb6279aee55 /mdadm.8
parent56eedc1a3f077e1822a4ee0889a78d89e834b037 (diff)
downloadmdadm-aa88f531b468349982905ecacf11da2cb6678ce6.tar.gz
mdadm-aa88f531b468349982905ecacf11da2cb6678ce6.tar.xz
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mdadm-1.3.0mdadm-1.3.0
Diffstat (limited to 'mdadm.8')
-rw-r--r--mdadm.840
1 files changed, 36 insertions, 4 deletions
diff --git a/mdadm.8 b/mdadm.8
index a04f7a0..c9d164d 100644
--- a/mdadm.8
+++ b/mdadm.8
@@ -1,5 +1,5 @@
.\" -*- nroff -*-
-.TH MDADM 8 "" v1.2.0
+.TH MDADM 8 "" v1.3.0
.SH NAME
mdadm \- manage MD devices
.I aka
@@ -232,9 +232,14 @@ Specify rounding factor for linear array (==chunk size)
.TP
.BR -l ", " --level=
-Set raid level. Options are: linear, raid0, 0, stripe, raid1, 1, mirror, raid5, 4,
+Set raid level. When used with
+.IR --create ,
+options are: linear, raid0, 0, stripe, raid1, 1, mirror, raid5, 4,
raid5, 5, multipath, mp. Obviously some of these are synonymous.
-Only the first 4 are valid when Building.
+
+When used with
+.IR --build ,
+only linear, raid0, 0, stripe are valid.
.TP
.BR -p ", " --parity=
@@ -255,7 +260,13 @@ Specify the number of active devices in the array. This, plus the
number of spare devices (see below) must equal the number of
.I component-devices
(including "\fBmissing\fP" devices)
-that are listed on the command line.
+that are listed on the command line. Setting a value of 1 is probably
+a mistake and so requires that
+.B --force
+be specified first. A value of 1 will then be allowed for linear,
+multipath, raid0 and raid1. It is never allowed for raid4 or raid5.
+.br
+Note that this number cannot be changed once the array has been created.
.TP
.BR -x ", " --spare-devices=
@@ -429,6 +440,18 @@ This is useful with
which will only continue monitoring if a mail address or alert program
is found in the config file.
+.TP
+.BR -1 ", " --oneshot
+Check arrays only once. This will generate
+.B NewArray
+events and more significantly
+.B DegradedArray
+events. Running
+.in +5
+.B " mdadm --monitor --scan -1"
+.in -5
+from a cron script will ensure regular notification of any degraded arrays.
+
.SH ASSEMBLE MODE
.HP 12
@@ -776,6 +799,15 @@ A new md array has been detected in the
file.
.TP
+.B DegradedArray
+A newly noticed array appears to be degraded. This message is not
+generated when
+.I mdadm
+notices a drive failure which causes degradation, but only when
+.I mdadm
+notices that an array is degraded when it first sees the array.
+
+.TP
.B MoveSpare
A spare drive has been moved from one array in a
.B spare-group