目標(biāo)：通過vmware虛擬機(jī)安裝deepin 20.8，其中diska裝系統(tǒng)，diskb和diskc做raid1鏡像。
我的vmware版本是VMware? Workstation 16 Pro 16.2.3 build-19376536，操作系統(tǒng)選項(xiàng)沒有deepin，我選擇debian 10.x 64位。
根據(jù)本人筆記本電腦情況，我賦予虛擬機(jī)4線程4G內(nèi)存，diaka容量60GB，diskb和dickc分別40GB
啟動(dòng)安裝，選擇第1項(xiàng)5.15內(nèi)核，選擇中文
diska的磁盤分區(qū)
選擇手動(dòng)安裝/選擇sda
（1）選擇sda可用空間，掛載點(diǎn)中選擇/boot，默認(rèn)分區(qū)大小為1536M
（2）選擇sda可用空間，文件系統(tǒng)中選擇交換分區(qū)，設(shè)置大小為4096M
（3）選擇sda可用空間，掛載點(diǎn)選擇/（根分區(qū)），設(shè)置大小為sda的剩余部分。
點(diǎn)擊下一步，選擇繼續(xù)安裝。持續(xù)安裝。。。
tshug@tshug-PC:~/Desktop$ sudo fdisk -l
Disk /dev/sda: 60 GiB, 64424509440 bytes, 125829120 sectors
Disk model: VMware Virtual S
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xabf7c327
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 3147776 3145729 1.5G 83 Linux
/dev/sda2 3149824 11538432 8388609 4G 82 Linux swap / Solaris
/dev/sda3 11540480 125829118 114288639 54.5G 83 Linux
Disk /dev/sdb: 40 GiB, 42949672960 bytes, 83886080 sectors
Disk model: VMware Virtual S
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x2a4ac06b
Disk /dev/sdc: 40 GiB, 42949672960 bytes, 83886080 sectors
Disk model: VMware Virtual S
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x423548af
tshug@tshug-PC:~/Desktop$
sdb,sdc 是兩個(gè)40GB大小的磁盤，需要做raid1鏡像
tshug@tshug-PC:~/Desktop$ sudo fdisk /dev/sdb
Welcome to fdisk (util-linux 2.38.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-83886079, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-83886079, default 83886079):
Created a new partition 1 of type 'Linux' and of size 40 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
//////
tshug@tshug-PC:~/Desktop$ sudo fdisk /dev/sdc
Welcome to fdisk (util-linux 2.38.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-83886079, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-83886079, default 83886079):
Created a new partition 1 of type 'Linux' and of size 40 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
tshug@tshug-PC:~/Desktop$ sudo fdisk /dev/sdc
Welcome to fdisk (util-linux 2.38.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-83886079, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-83886079, default 83886079):
Created a new partition 1 of type 'Linux' and of size 40 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
創(chuàng)建陣列
mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1
命令解釋：
--create：創(chuàng)建陣列
--verbose：輸入詳細(xì)信息
/dev/md0：創(chuàng)建后的陣列的設(shè)備名
level：要?jiǎng)?chuàng)建的 RAID 的級別，這里使用模式 1
raid-devices：指定 RAID 副本的磁盤數(shù)。在這里指定了 2 ，意思是平時(shí)有兩個(gè)磁盤在工作。
如果以后添加了第三塊硬盤，那么第三塊硬盤將作為備用磁盤。當(dāng)工作中的兩塊磁盤有一塊壞了，第三塊將立刻啟動(dòng)，并將完好的一塊的內(nèi)容復(fù)制到新的盤中。
查看陣列是否創(chuàng)建成功
由于上面命令創(chuàng)建后的陣列設(shè)備名為：/dev/md0，所以直接使用 fdisk -l 命令查看即可。
創(chuàng)建文件系統(tǒng)并掛載
- sudo mkfs.ext4 -F /dev/md0
掛載存儲到 /data 目錄
- mount /dev/md0 /data
保存陣列布局
完成以上步驟后，將陣列保存下來，在下次啟動(dòng)的時(shí)候自動(dòng)加載，
因此需要將陣列信息保存到 /etc/mdadm/mdadm.conf 文件中。可以通過以下命令來自動(dòng)掃描活動(dòng)陣列并追加文件：
mdadm --detail --scan | sudo tee -a /etc/mdadm/mdadm.conf
更新初始RAM文件系統(tǒng)(initramfs)
update-initramfs -u
保存掛載信息，修改 /etc/fstab 文件
/dev/md0 /data ext4 defaults 0 0
啟用ssh
sudo apt install openssh-server
sudo systemctl start ssh
sudo systemctl stop ssh
sudo systemctl enable ssh
everything is OK.
