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모든 디스크의 파티션을 생성하고...
리눅스를 Minimal 모드로 설치하면 mdadm이 설치 되지 않는다.
그러므로 레이드 구성을 하려면 mdadm을 먼저 설치해야 한다.
[root@slave1 dev]# yum install -y mdadm
Loaded plugins: fastestmirror
base | 3.6 kB 00:00
extras | 3.4 kB 00:00
updates | 3.4 kB 00:00
(1/4): extras/7/x86_64/primary_db | 185 kB 00:04
(2/4): base/7/x86_64/group_gz | 156 kB 00:05
(3/4): updates/7/x86_64/primary_db | 6.9 MB 00:06
(4/4): base/7/x86_64/primary_db | 5.7 MB 12:23
Determining fastest mirrors
* base: centos.mirror.cdnetworks.com
* extras: centos.mirror.cdnetworks.com
* updates: centos.mirror.cdnetworks.com
Resolving Dependencies
--> Running transaction check
---> Package mdadm.x86_64 0:4.0-5.el7 will be installed
--> Processing Dependency: libreport-filesystem for package: mdadm-4.0-5.el7.x86_64
--> Running transaction check
---> Package libreport-filesystem.x86_64 0:2.1.11-38.el7.centos will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository
Size
================================================================================
Installing:
mdadm x86_64 4.0-5.el7 base 428 k
Installing for dependencies:
libreport-filesystem x86_64 2.1.11-38.el7.centos base 39 k
Transaction Summary
================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 467 k
Installed size: 1.0 M
Downloading packages:
경고: /var/cache/yum/x86_64/7/base/packages/mdadm-4.0-5.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Public key for mdadm-4.0-5.el7.x86_64.rpm is not installed
(1/2): mdadm-4.0-5.el7.x86_64.rpm | 428 kB 00:00
(2/2): libreport-filesystem-2.1.11-38.el7.centos.x86_64.rp | 39 kB 00:02
--------------------------------------------------------------------------------
Total 177 kB/s | 467 kB 00:02
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Importing GPG key 0xF4A80EB5:
Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) "
Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
Package : centos-release-7-4.1708.el7.centos.x86_64 (@anaconda)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : libreport-filesystem-2.1.11-38.el7.centos.x86_64 1/2
Installing : mdadm-4.0-5.el7.x86_64 2/2
Verifying : libreport-filesystem-2.1.11-38.el7.centos.x86_64 1/2
Verifying : mdadm-4.0-5.el7.x86_64 2/2
Installed:
mdadm.x86_64 0:4.0-5.el7
Dependency Installed:
libreport-filesystem.x86_64 0:2.1.11-38.el7.centos
Complete!
[root@slave1 dev]#
[root@slave1 dev]# mdadm --create /dev/md/level10 --level=10 --raid-devices=8 /dev/sdb1 /dev/sdc1 \
> /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md/level10 started.
[root@slave1 dev]# mdadm --detail --scan
ARRAY /dev/md/level10 metadata=1.2 name=slave1:level10 UUID=3d54309f:5be7a594:5c187d27:6a5da1bc
[root@slave1 dev]# mdadm --detail /dev/md/level10
/dev/md/level10:
Version : 1.2
Creation Time : Tue Apr 24 09:38:14 2018
Raid Level : raid10
Array Size : 41906176 (39.96 GiB 42.91 GB)
Used Dev Size : 10476544 (9.99 GiB 10.73 GB)
Raid Devices : 8
Total Devices : 8
Persistence : Superblock is persistent
Update Time : Tue Apr 24 09:38:54 2018
State : clean, resyncing
Active Devices : 8
Working Devices : 8
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 512K
Consistency Policy : resync
Resync Status : 21% complete
Name : slave1:level10 (local to host slave1)
UUID : 3d54309f:5be7a594:5c187d27:6a5da1bc
Events : 3
Number Major Minor RaidDevice State
0 8 17 0 active sync set-A /dev/sdb1
1 8 33 1 active sync set-B /dev/sdc1
2 8 49 2 active sync set-A /dev/sdd1
3 8 65 3 active sync set-B /dev/sde1
4 8 81 4 active sync set-A /dev/sdf1
5 8 97 5 active sync set-B /dev/sdg1
6 8 113 6 active sync set-A /dev/sdh1
7 8 129 7 active sync set-B /dev/sdi1
[root@slave1 dev]#
[root@slave1 dev]# mkfs -t ext4 /dev/md/level10
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=128 blocks, Stripe width=512 blocks
2621440 inodes, 10476544 blocks
523827 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2157969408
320 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
[root@slave1 dev]#
[root@slave1 dev]# mkdir /dfs
[root@slave1 dev]# mount /dev/md/level10 /dfs
[root@slave1 dev]# vi /etc/fstab
#
# /etc/fstab
# Created by anaconda on Mon Apr 23 17:12:53 2018
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos_slave1-root / xfs defaults 0 0
UUID=75f8e769-5a12-46f8-a3e3-5091f4eea81b /boot xfs defaults 0 0
/dev/mapper/centos_slave1-swap swap swap defaults 0 0
/dev/md/level10 /dfs ext4 defaults 0 2
~
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