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====== Data & Storage/Advanced Data & Storage ======

===== Prereqs to Setting Up the RAIDs =====
  
  log into vmserver02
  cd /xen/conf
  vi vm08.cfg
  add the following lines to the file:
	'file:xen/domains/vm08/disk_1.img,xvda3,w',
	'file:xen/domains/vm08/disk_2.img,xvda4,w',
	'file:xen/domains/vmo8/disk_3.img,xvda5,w',
	'file:xen/domains/vm08/disk_4.img,xvda6,w',
  save and exit vi
  modprobe md
  modprobe linear
  modprobe multipath
  modprobe raid0
  modprobe raid1
  modprobe radi5
  modprobe raid6
  modprobe raid10

===== RAID 0 =====
  log into vm08
  shutdown -h now
  log into vmserver02
  cd /xen/domains/vm08
  dd if=/dev/zero of=disk_1.img bs=1M count=1024
  dd if=/dev/zero of=disk_2.img bs=1M count=1024
  cd /xen/conf
  xm create -c vm08.cfg
  log into vm08
  mdadm --create /dev/md0 --level=0 --raid-disks=2 /dev/xvda3 /dev/xvda4
  mkfs.ext3 /dev/md0
  mount /dev/md0 /mnt
  cat /proc/mdstat

===== RAID 1 =====

  log into vm08
  shutdown -h now
  log into vmserver02
  cd /xen/domains/vm08
  dd if=/dev/zero of=disk_1.img bs=1M count=1024
  dd if=/dev/zero of=disk_2.img bs=1M count=1024
  cd /xen/conf
  xm create -c vm08.cfg
  log into vm08
  mdadm --create /dev/md0 --level=1 --raid-disks=2 /dev/xvda3 /dev/xvda4
  mkfs.ext3 /dev/md0
  mount /dev/md0 /mnt
  cat /proc/mdstat

===== RAID 5 =====

  log into vm08
  shutdown -h now
  log into vmserver02
  cd /xen/domains/vm08
  dd if=/dev/zero of=disk_1.img bs=1M count=1024
  dd if=/dev/zero of=disk_2.img bs=1M count=1024
  dd if=/dev/zero of=disk_3.img bs=1M count=1024
  cd /xen/conf
  xm create -c vm08.cfg
  log into vm08
  mdadm --create /dev/md0 --level=5 --raid-disks=3 /dev/xvda3 /dev/xvda4  
						   /dev/xvda5
  mkfs.ext3 /dev/md0
  mount /dev/md0 /mnt
  cat /proc/mdstat

===== RAID 6 =====

  log into vm08
  shutdown -h now
  log into vmserver02
  cd /xen/domains/vm08
  dd if=/dev/zero of=disk_1.img bs=1M count=1024
  dd if=/dev/zero of=disk_2.img bs=1M count=1024
  dd if=/dev/zero of=disk_3.img bs=1M count=1024
  dd if=/dev/zero of=disk_4.img bs=1M count=1024
  cd /xen/conf
  xm create -c vm08.cfg
  log into vm08
  mdadm --create /dev/md0 --level=6 --raid-disks=4 /dev/xvda3 /dev/xvda4
						   /dev/xvda5 /dev/xvda6
  mkfs.ext3 /dev/md0
  mount /dev/md0 /mnt
  cat /proc/mdstat

===== RAID 10 =====

  log into vm08
  shutdown -h now
  log into vmserver02
  cd /xen/domains/vm08
  dd if=/dev/zero of=disk_1.img bs=1M count=1024
  dd if=/dev/zero of=disk_2.img bs=1M count=1024  
  dd if=/dev/zero of=disk_3.img bs=1M count=1024
  dd if=/dev/zero of=disk_4.img bs=1M count=1024
  cd /xen/conf
  xm create -c vm08.cfg
  log into vm08
  mdadm --create /dev/md0 --level=10 --raid-disks=4 /dev/xvda3 /dev/xvda4
					       	    /dev/xvda5 /dev/xvda6
  mkfs.ext3 /dev/md0
  mount /dev/md0 /mnt
  cat /proc/mdstat

=====RAID 01=====

  log into vm08
  shutdown -h now
  log into vmserver02
  cd /xen/domains/vm08
  dd if=/dev/zero of=disk_1.img bs=1M count=1024
  dd if=/dev/zero of=disk_2.img bs=1M count=1024
  dd if=/dev/zero of=disk_3.img bs=1M count=1024
  dd if=/dev/zero of=disk_4.img bs=1M count=1024
  cd /xen/conf
  xm create -c vm08.cfg
  log into vm08
  mdadm --create /dev/md0 --level=0 --raid-disks=2 /dev/xvda3 /dev/xvda4
  mdadm --create /dev/md1 --level=0 --raid-disks=2 /dev/xvda5 /dev/xvda6
  mdadm --create /dev/md2 --level=1 --raid-disks=2 /dev/md0 /dev/md1
  mkfs.ext3 /dev/md2
  mount /dev/md2 /mnt
  cat /proc/mdstat
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