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Software Raid on UBUNTU

  Provide file system to RAID | Create Mount point | Mount RAID | check root@raid:/dev# mkfs.ext4 -F /dev/md0 mke2fs 1.42.13 (17-May-2015) Creating filesystem with 523520 4k blocks and 131072 inodes Filesystem UUID: ce503c86-aa4f-470c-b39c-f5e1002cf80e Superblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912 Allocating group tables: done Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done root@raid:/# mkdir RAID root@raid:/RAID# pwd /RAID root@raid:/# mount /dev/md0 /RAID root@raid:/#df -hT Filesystem     Type      Size  Used Avail Use% Mounted on udev           devtmpfs  468M     0  468M   0% /dev tmpfs          tmpfs      98M  5.9M   92M   6% /run /dev/sda1      ext4      8.8G...

Raid Concepts

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Below attached video provides good concept for raid on linux. Ref: https://youtu.be/nxkXNZlJDJc