Virtual Machine Additions RAID5 hard disk and partition, format, mount use

When installing a new device after a new hard drive, in order to more fully secure the use of hard disk space must first partition, and then format and finally mount use.

1. Before you turn on a virtual machine, first add the hard disk device, here I added five hard disk (disk 5, three blocks do RAID5,2 do backups)

Click "Add"

Select the hard drive, click "Next"

Select the disk type

Select "Create a new virtual hard disk"

Set disk size

The default disk name like, click "Finish"

Successfully added hard disk appear in the list, here are the steps above have been completed in five hard disk, click "OK" to open the virtual machine to disk partitions

2. Open a terminal

input the command:

View disk partition fdisk -l

3. Create a backup disk

[root@huming-hbza ~]# mdadm -Cv /dev/md0 -n 3 -l 5 -x 2 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf
mdadm: layout defaults to left-symmetric
mdadm: layout defaults to left-symmetric
mdadm: chunk size defaults to 512K
mdadm: size set to 20954112K
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md0 started.
[root@huming-hbza ~]#

4. ext4 file system format

[root@huming-hbza ~]# mkfs.ext4 /dev/md0
mke2fs 1.42.9 (28-Dec-2013)
文件系统标签=
OS type: Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=128 blocks, Stripe width=256 blocks
2621440 inodes, 10477056 blocks
523852 blocks (5.00%) reserved for the super user
第一个数据块=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: 完成                            
正在写入inode表: 完成                            
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成   

[root@huming-hbza ~]#

5.挂载磁盘

[root@huming-hbza ~]# mkdir /home/news
[root@huming-hbza ~]# mount /dev/md0 /home/news/

6.查看磁盘状况

[root@huming-hbza ~]# mdadm -D /dev/md0
/dev/md0:
           Version : 1.2
     Creation Time : Mon Oct 21 01:45:48 2019
        Raid Level : raid5
        Array Size : 41908224 (39.97 GiB 42.91 GB)
     Used Dev Size : 20954112 (19.98 GiB 21.46 GB)
      Raid Devices : 3
     Total Devices : 5
       Persistence : Superblock is persistent

       Update Time : Mon Oct 21 01:54:32 2019
             State : clean 
    Active Devices : 3
   Working Devices : 5
    Failed Devices : 0
     Spare Devices : 2

            Layout : left-symmetric
        Chunk Size : 512K

Consistency Policy : resync

              Name : huming-hbza:0  (local to host huming-hbza)
              UUID : d7544320:d9e3eea0:3fefd0b6:5df6848d
            Events : 18

    Number   Major   Minor   RaidDevice State
       0       8       16        0      active sync   /dev/sdb
       1       8       32        1      active sync   /dev/sdc
       5       8       48        2      active sync   /dev/sdd

       3       8       64        -      spare   /dev/sde
       4       8       80        -      spare   /dev/sdf
[root@huming-hbza ~]#

Virtual Machine Additions RAID5 hard disk and partition, format, mount use

Guess you like