blob: a2825f56cc3353806dbf5b665e80d2515f1fa688 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
---
title: "mdadm"
date: 2011-11-15
description: some mdadm command examples
tags:
- linux
- toolbox
---
## Watch the array status
```sh
watch -d -n10 mdadm --detail /dev/md127
```
## Recovery from livecd
```sh
mdadm --examine --scan >> /etc/mdadm.conf
mdadm --assemble --scan /dev/md/root
mount /dev/md127 /mnt # or vgscan...
```
If auto detection does not work, you can still assemble an array manually :
```sh
mdadm --assemble /dev/md0 /dev/sda1 /dev/sdb1
```
## Resync an array
First rigorously check the output of `cat /proc/mdstat`
```sh
mdadm --manage --re-add /dev/md0 /dev/sdb1
```
## Destroy an array
```sh
mdadm --stop /dev/md0
mdadm --zero-superblock /dev/sda
mdadm --zero-superblock /dev/sdb
```
|
