Shulou(Shulou.com)06/02 Report--

Note: raid5 must be in three hard disks or more and the capacity should be the same raid5 hard disk utilization rate of n-1

Add 3 hard disks to the virtual machine and the capacity is 0.2G

Open the virtual machine after adding to view the added hard disks

fdisk -l

Create partition format as raid separately

fdisk /dev/sdbfdisk/dev/sdc fdisk /dev/sddn //Create partition p //Create primary partition 1 //Create partition 1 Enter Default//Start sector and Last sector Select Default Press Enter t //Convert partition format fd //Convert to raid p //View partition results created w //Save Exit

view results

fdisk -l | grep fd

Start creating disk arrays

mdadm -C /dev/md0 -a yes -l 5 -n 3 /dev/sd{b,c,d} //parameter l is raid level n is number of disks

Create a file system of type xfs for the newly created/dev/md0

mkfs.xfs /dev/md0

View Created Results

mdadm -D /dev/md0

Creating a folder requires mounting raid5 into this folder

vim /etc/fstab

Add at the end

/dev/md0 /mnt/raid5 xfs defaults 0 0

mdadm.conf was created to enable soft raid automatically after a reboot

mdadm -D -s > /etc/mdadm.conf //This step is important or it will cause mount failure

Restart Verification

rebootdf -h

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