PART A : Identify the disks available$1.$ Display all the hard disks $($SCREENSHOT$)2.$ Identify the disks $($except $/$dev$/$sda$)$ and note down the disk name and size.PART B : RAID $13.$ Using the $2$ x $300$MB hard disks, partition each disk as single partition and then create RAID$1$ as $/$dev$/$md$1$ and createxfs file system on it and mount it on $/$raid$1$ directory$\mathrm{.}4.$ Assign user and group ownership to yourself for $/$raid$1,$ create files r$1$test$1$ by redirecting the output of man mdadm tor$1$test$1,$ similarly for r$1$test$2$ using man gdisk and r$1$test$3$ using man useradd $/$raid$1$ without using sudo,$5.$ Simulate any one of the disks in $/$dev$/$md$1$ array for failure, remove it and replace it with the unused $300$Mdisk. Following SCREENSHOTS required at each stage given below.