Linux RAID 1

Disk Management RAID1

POCEnvironment

in the Linux Added on 2 block of New 30GB HDD Start

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Cat/etc/redhat-releaseCat

Name:mdadm Relocations: (not relocatable)
version:3.2.5 Vendor:red Hat, Inc.
Release:4.el6 Build Date:fri Dec 12:14:45 AM CST
Install Date:fri 06:07:09 PM CST Build host:x86-003.build.bos.redhat.com
Group:system environment/base Source rpm:mdadm-3.2.5-4.el6.src.rpm
size:860588 license:gplv2+
SIGNATURE:RSA/8, Mon, 10:48:06 PM CST, Key ID 199e2f91fd431d51
Packager:red Hat, Inc. url:http://www.kernel.org/pub/linux/utils/raid/mdadm/
Summary:the Mdadm Program Controls Linux MD devices (software RAID arrays)
Description:
The MDADM program was used to create, manage, and monitor Linux MD (software
RAID) devices. As such, it provides similar functionality to the Raidtools
Package. However, Mdadm is a single program, and it can perform
Almost all functions without a configuration file, though a configuration
File can is used to help with some common tasks.

OperationPartitioning

Fdisk-l

disk/dev/sdb:32.2 GB, 32212254720 bytes

255 heads, Sectors/track, 3916 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

disk/dev/sdc:32.2 GB, 32212254720 bytes

255 heads, Sectors/track, 3916 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x00000000

Create a directory, mount the disc to the directory, and enter SDB HDD

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Enter hard drive create sdb1 View

Fdisk/dev/sdb1

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the /DEV/SDC to operate

Fdisk-l/DEV/SDC

disk/dev/sdc:32.2 GB, 32212254720 bytes

255 heads, Sectors/track, 3916 cylinders

Units = Cylinders of 16065 * 8225280 bytes

Sector size (logical/physical): bytes/512 bytes

I/O size (minimum/optimal): bytes/512 bytes

Disk identifier:0x8f7a12ed

Device Boot Start End Blocks Id System

/DEV/SDC1 1 3916 31455238+ fd Linux raid AutoDetect

go to mount directory installation rpm Mdadm Package

Cd/mnt/packages

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EstablishRAID1Volume

make sdb1 SDC1 Array

mdadm-c/dev/md0-l 1-n 2/DEV/SDB1/DEV/SDC1

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Enter to see if the build was successful

Cat/proc/mdstart

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Creating a file system

Format the disk array

Mkfs.ext4/dev/md0

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Create a directory DATA

Mkdir/mnt/data

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will be md0 Mount to Data under

Mount/dev/md0/mnt/data

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in the file Fatab Next Append content

Vi/etc/fstab

/dev/md0/data EXT4 Defaults 0 0

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Write a configuration file

Mdadm-ds >>/etc/mdadm.conf

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Restart

reboot