linux下raid1和raid5创建命令
//创建命令
[root@raid ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 39.5G 0 part
├─centos-root 253:0 0 35.6G 0 lvm /
└─centos-swap 253:1 0 3.9G 0 lvm [SWAP]
sdb 8:16 0 25G 0 disk
├─sdb1 8:17 0 2G 0 part
├─sdb2 8:18 0 2G 0 part
├─sdb3 8:19 0 2G 0 part
├─sdb4 8:20 0 1K 0 part
└─sdb5 8:21 0 2G 0 part
sr0 11:0 1 4G 0 rom
[root@raid ~]# mdadm -Cv /dev/md10 -a yes -n 4 -l 10 /dev/sdb1 /dev/sdb2 /dev/sdb3 /dev/sdb5
mdadm: layout defaults to n2
mdadm: layout defaults to n2
mdadm: chunk size defaults to 512K
mdadm: size set to 2094080K
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md10 started.
//查看信息
[root@raid ~]# mdadm -D /dev/md10
/dev/md10:
Version : 1.2
Creation Time : Mon Oct 4 16:13:39 2021
Raid Level : raid10
Array Size : 4188160 (3.99 GiB 4.29 GB)
Used Dev Size : 2094080 (2045.34 MiB 2144.34 MB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Mon Oct 4 16:14:00 2021
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 512K
Name : raid:10 (local to host raid)
UUID : dc2b2f16:240f1ba9:da5ace71:a49542c2
Events : 17
Number Major Minor RaidDevice State
0 8 17 0 active sync set-A /dev/sdb1
1 8 18 1 active sync set-B /dev/sdb2
2 8 19 2 active sync set-A /dev/sdb3
3 8 21 3 active sync set-B /dev/sdb5
//格式化
[root@raid ~]# mkfs.ext4 /dev/md10
//挂载
[root@raid ~]# mkdir /media/raid10
[root@raid ~]# mount /dev/md10 /media/raid10
//查看挂载信息
[root@raid ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 36G 7.6G 29G 22% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 8.6M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 497M 125M 373M 25% /boot
tmpfs 378M 0 378M 0% /run/user/0
/dev/md10 3.9G 16M 3.7G 1% /media/raid10
linux下raid10创建命令
//创建命令
[root@raid ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 39.5G 0 part
├─centos-root 253:0 0 35.6G 0 lvm /
└─centos-swap 253:1 0 3.9G 0 lvm [SWAP]
sdb 8:16 0 25G 0 disk
├─sdb1 8:17 0 2G 0 part
├─sdb2 8:18 0 2G 0 part
├─sdb3 8:19 0 2G 0 part
├─sdb4 8:20 0 1K 0 part
└─sdb5 8:21 0 2G 0 part
sr0 11:0 1 4G 0 rom
[root@raid ~]# mdadm -Cv /dev/md10 -a yes -n 4 -l 10 /dev/sdb1 /dev/sdb2 /dev/sdb3 /dev/sdb5
mdadm: layout defaults to n2
mdadm: layout defaults to n2
mdadm: chunk size defaults to 512K
mdadm: size set to 2094080K
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md10 started.
//查看信息
[root@raid ~]# mdadm -D /dev/md10
/dev/md10:
Version : 1.2
Creation Time : Mon Oct 4 16:13:39 2021
Raid Level : raid10
Array Size : 4188160 (3.99 GiB 4.29 GB)
Used Dev Size : 2094080 (2045.34 MiB 2144.34 MB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Mon Oct 4 16:14:00 2021
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 512K
Name : raid:10 (local to host raid)
UUID : dc2b2f16:240f1ba9:da5ace71:a49542c2
Events : 17
Number Major Minor RaidDevice State
0 8 17 0 active sync set-A /dev/sdb1
1 8 18 1 active sync set-B /dev/sdb2
2 8 19 2 active sync set-A /dev/sdb3
3 8 21 3 active sync set-B /dev/sdb5
//格式化
[root@raid ~]# mkfs.ext4 /dev/md10
//挂载
[root@raid ~]# mkdir /media/raid10
[root@raid ~]# mount /dev/md10 /media/raid10
//查看挂载信息
[root@raid ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 36G 7.6G 29G 22% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 8.6M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 497M 125M 373M 25% /boot
tmpfs 378M 0 378M 0% /run/user/0
/dev/md10 3.9G 16M 3.7G 1% /media/raid10