This page is part of my webdevster.com tutorial, see index to OpenQRM and XEN LVM based HVM VM.

[3.3] Step 3. Provision XEN-Storage Host in OpenQRM as Resource

Login to OpenQRM webUI, and go to:

OpenQRM > Base > Data Center > Appliances > List

You will now see the new resource type Physical System, which was created using the Local-Server plugin CLI command; it has a really nice green checkmark next to it. At this point, you’ll want to click on Edit. Locate, “Resource Type”, and select “XEN-Storage Host”. Create an optional comment; this is a very nice option you should take advantage of. Leave everything alone and click Save.

Should look like this:

[3.4] Step 4. Verify XEN LVM VM on Remote/Local XEN Host Server

Create Storage Name

In order for OpenQRM to show us the LVM storage we created in Xen Host, we have to give this storage a ‘reference’ name. So this step doesn’t actually create a storage, as it’s only to reference the storage so you can view, create, and manage storage.

OpenQRM > Base > Data Center > Components > Create > Storage

• Pay Attention, on the Deployment drop down, select XEN LVM Storage.
• Select x01 Server (Xen host), Physical System on Res. 1, radio button, and click on select.
• Give the new storage a name, x01-lc1-cloud1-lvm, click save.

Should look like this:

Verify Logical Volume Storage on XEN Host (x01-lc1-cloud1-lvm)

In the step we’ll verify the LVM we created in previous Chapter 2.

OpenQRM >Plugins > Plugin Manager > Virtualization > XEN-Storage > XEN Volumes

• Select Xen LVM Storage type (x01-lc1-cloud1-lvm) radio button, and click on select.
• Select ‘vol’ radio button, and click on select-vg
• You’ll notice you will have options like, snap, clone, and resize of the lvm
• You’ll also notice (verify) our vmx01cms01 LV, which we created in chapter 2.

Should look like this:

Verify XEN VM on XEN Host

In this step, we’ll verify the the Xen VM we created in chapter 2.

OpenQRM >Plugins > Plugin Manager > Virtualization > XEN-Storage > XEN VMs

• Select x01 radio button, and click Select.
• You’ll notice (verify) our vmx01cms01, VM we created in chapter 2.
• If you get an X mark on the status of vmx01cms01 VM, you can safely disregard, as this VM cfg file will be recreated, in the latter step.

Should look like this:

[3.5] Step 5. (Optional) PXE Boot

Allow OpenQRM to start Xen Host

• Access bios, and enable PXE Boot for Xen Host.

[3.6] Step 6. (Optional) Import Xen Host Kernel to OpenQRM

This Step 6 is optional. When you first integrate a Xen host, like in our ongoing tutorial, OpenQRM will auto create a Kernel, named “resource1″ (see ‘kernel list’ image below). The following is for reference only.

Copy XEN Host Kernel to OpenQRM Server

To take advantage of OpenQRM’s resources, it’s best to import Xen Host’s kernel. Once you have done this, you won’t have to do it again for this Xen Host server, and probably for this kernel.

On the XEN host server

• Create directory on Xen host server
  prompt>mkdir /export

• Tar the Xen host root file system /. Don’t worry about the errors, “socket ignored”, “file changed as we read it”, etc… (also, the single quotes below are double quotes)
  prompt>tar czf /export/root-fs.tar.gz / –exclude ‘/proc’ –exclude ‘/sys’

• Make directory on OpenQRM server, via ssh
  prompt>ssh root@10.1.11.10 mkdir -p /import/root-fs/x01.lc1.cloud1

• Copy the root-fs.tar.gz to OpenQRM, via ssh
  prompt>scp /export/root-fs.tar.gz 10.1.11.10:/import/root-fs/x01.lc1.cloud1

  It will copy approx. 901mb, for a Xen host with no Gnome, or GUI.

Register the Kernel with OpenQRM; optional.

On the OpenQRM Server

• Import the root-fs.tar.gz, to OpenQRM
  prompt>cd /import/root-fs/x01.lc1.cloud1 && tar -xvvzf root-fs.tar.gz
  

• Now add the kernel files to OpenQRM. More about this can be found at OpenQRM > Base > Components > Create > Kernel
  prompt>/usr/share/OpenQRM/bin/OpenQRM kernel add -n x01.lc1.cloud1.2.6.26-2-xen-amd64 -v 2.6.26-2-xen-amd64 -u OpenQRMWEBUIUSERNAME -p OpenQRMWEBUIPASSWORD -i initramfs -l /import/root-fs/x01.lc1.cloud1 -t /usr/share/OpenQRM/etc/templates/OpenQRM-initrd-template.debian.x86_64.tgz

  If the above command doesn’t work, try the following command. The error is OpenQRM’s fault, due to changing the way they package their files, i.e. openqrm instead of OpenQRM.

  prompt>/usr/share/openqrm/bin/openqrm kernel add -n x01.lc1.cloud1.2.6.26-2-xen-amd64 -v 2.6.26-2-xen-amd64 -u OpenQRMWEBUIUSERNAME -p OpenQRMWEBUIPASSWORD -i initramfs -l /import/root-fs/x01.lc1.cloud1 -t /usr/share/openqrm/etc/templates/openqrm-initrd-template.debian.x86_64.tgz

Go to OpenQRM > Base > Components > Kernel, and view the kernel named x01.lc1.cloud1.2.6.26-2-xen-amd64

Should look like this:

If you messed up, go to OpenQRM>Base>Components>Kernel, select Kernel you messed up and delete it. Start over with, Copy XEN Host Kernel to OpenQRM Server.

Delete root-fs.tar.gz

• If you wish, you can safely delete the approx 900mb, root-fs.tar.gz file and extraction.
  prompt>rm -R /import/root-fs/x01.lc1.cloud1

[3.7] Step 7. Remove and Recreate VM (vmx01cms01.cfg) cfg file

In order to successfully create an appliance (our ultimate goal) in OpenQRM, OpenQRM needs to recreate the VM (vmx01cms01.cfg) cfg file. This is done, by clicking on the +VM, but before we do this let’s make a backup copy of the existing vmx01cms01.cfg file

We will configure OpenQRM to manage the existing VM we created in chapter 2.

On Xen Host

• Backup VM (vmx01cms01.cfg) cfg file - If you haven’t already made a backup copy of the VM Xen cfg file, do so now.
  prompt>cp /etc/xen/vmx01cms01.cfg /bak/vm/

  Delete or Rename the file, as OpenQRM will create this file for us.

  Delete:

  prompt>rm /etc/xen/vmx01cms01.cfg

  Rename:

  prompt>mv /etc/xen/vmx01cms01.cfg /etc/xen/vmx01cms01.cfg.bak

  Unplug the VM

  prompt>xm destroy vmx01cms01

On OpenQRM

• Recreate VM (vmx01cms01.cfg) cfg file
  

  The following process will simply recreate the same Xen VM cfg file (vmx01cms01.cfg).

  OpenQRM >Plugins > Plugin Manager > Virtualization > XEN-Storage > XEN VMs

  • Select x01 radio button, and click Select
  • You’ll notice our vmx01cms01 cfg file is gone.
  • Click on +VM (Create VM).
  • Configure with the following settings:
    Add new VM to Xen Host id 1
    VM name: vmx01cms01
    Virtual Hardware : CPUs - 2 CPUs (Your choice)
    Memory (MB) - 2048 (Your choice)
    Network: Mac address - 00:79:F9:AC:AA:98 (make sure to use the same mac address)
    Boot from: Local Disk
  • Click on, New (Creates Xen VM cfg file).

Screen will look like this:

[3.8] Step 8. Configure VM Image

At this point the VM is created, now we have to tell OpenQRM we’re the VM OS (VM Image) is located.

OpenQRM > Base > Data Center > Components > Create > Image

• Select x01-lc1-cloud1-lvm (Xen LVM Storage), radio button, click select.
• Give the image a name, img_vmx01cms01. Select, vmx01cms01, on the root-device drop down. Leave everything alone, and click on Save.

Screen will look like this:

[3.9] Step 9. Configure Appliance

When ever you create a VM, with Xen-storage plugin, (like we did above) it will autocreate an Idle Appliance.

OpenQRM > Base > Data Center > Appliances > Create

• Select vmx01cms01, radio button, and click on select.
• Configure with the following settings:
  Appliance a name: ap_vmx01cms01
  Kernel: x01.lc1.cloud1.2.6.26-2-xen-amd64 or resource1
  Resource: img_vmx01cms01
  For Requirements Section, fill out appropriately to your specifications, and make sure Resource ‘drop down’ reads, Xen-storage VM.
  

Screen will look similar to this:

After you click save

Screen will look like this:

Notice the grey dot, which means the VM is idle.

[3.10] Step 10. Start the Appliance

OpenQRM > Base > Data Center > Appliances > List

• Select ap_vmx01cms01, radio button, and click on start.
• The grey Idle icon will turn to a pretty green check mark, if it doesn’t, simply click on refresh.

Done

[3.11] Step 11. Have Fun with VM

View and interact with your new VM via VNC Client at the newly created port, 1.

Congratulations!
you finished the tutorial. Thank you for following this tutorial.

I created this step by step; cli; copy and paste; tutorial for the open source community, in an attempt to attract a larger OpenQRM userbase, so that OpenQRM and their community keep evolving the future of Cloud technology. Also, so I, MEE, can have more fun with their technology; truly revolutionary turning point in IT history.

Although it sounds like I am marketing for OpenQRM, I am not affiliated with OpenQRM or any of their partners, whatsoever. I want to especially thank the OpenQRM community; the OpenQRM team; Matt, the project manager; and the OpenQRM sponsor, OpenQRM Enterprise, for bringing these invaluable tools to the open source community. Great job, please keep it up.

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