Workaround Attach Additional Disk to VM: Difference between revisions

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(Created page with "= Abstract = It is currently not possible to attach additional virtual disks directly via the default webinterface. What you do in principle: * Update the VMs configuration...")
 
 
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= Abstract =
= Abstract =


It is currently not possible to attach additional virtual disks directly via the default webinterface.
It is currently not possible to attach additional virtual disks directly via the webinterface.


What you do in principle:
What you do in principle:


* Update the VMs configuration data in the LDAP directory
* Update the VMs configuration data in the LDAP directory
* Manually reate the virtual disk
* Manually create the virtual disk
* Regenerate the VM configuration on the node
* Regenerate the VM configuration on the node


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== Part I ==
== Part I ==


* Expand the VM entry for the VM you want to add an additional disk to and note the UUID below VM name ('''VMUUID''')
* In the vm-manager: Expand the VM entry for the VM you want to add an additional disk to and note the UUID below VM name ('''$VMUUID''')
* Use <code>uuidgen</code> and generate a new UUID ('''DISKUUID''')
* In a shell: Use <code>uuidgen</code> and generate a new UUID ('''$DISKUUID''')
* Calculate the size of the new disk in bytes: <code>N * 1073741824</code> for N gigabyte ('''DISKSIZE''')
* Calculate the size of the new disk in bytes: <code>N * 1073741824</code> for N gigabyte ('''$DISKSIZE''')
* Open the URL http://YOURSTONEYCLOUD/phpldapadmin/ and login using <code>dc=Manager,...</code>
* Open the URL http://YOURSTONEYCLOUD/phpldapadmin/ and login using <code>dc=Manager,...</code>
* Navigate to: <code>sstDisk=vda,ou=devices,sstVirtualMachine='''VMUUID''',ou=virtual machines,ou=virtualization,ou=services,dc=foss-cloud,dc=org</code> using the tree structure on the left
* Navigate to: <code>sstDisk=vda,ou=devices,sstVirtualMachine='''$VMUUID''',ou=virtual machines,ou=virtualization,ou=services,dc=stoney-cloud,dc=org</code> using the tree structure on the left
* Click on <code>Copy or move this entry</code> and choose <code>sstDisk=vdb,ou=devices,sstVirtualMachine='''VMUUID''',ou=virtual machines,ou=virtualization,ou=services,dc=foss-cloud,dc=org</code> as <code>Destination DN</code>
* Click on <code>Copy or move this entry</code> and choose <code>sstDisk=vdb,ou=devices,sstVirtualMachine='''$VMUUID''',ou=virtual machines,ou=virtualization,ou=services,dc=foss-cloud,dc=org</code> as <code>Destination DN</code>
* Replace:
* Replace:
** the UUID in <code>sstVolumeName</code>
** the UUID in <code>sstVolumeName</code>
** and the same UUID in <code>sstSourceFile</code> with '''DISKUUID''' (warning: in <code>sstSourceFile</code> are at least two UUIDs, replace only the one matching <code>sstVolumeName</code>)
** and the same UUID in <code>sstSourceFile</code> with '''$DISKUUID''' (warning: in <code>sstSourceFile</code> are at least two UUIDs, replace only the one matching <code>sstVolumeName</code>)
** the value in <code>sstVolumeCapacity</code> by '''DISKSIZE'''
** the value in <code>sstVolumeCapacity</code> by '''$DISKSIZE'''
* Click on <code>Create</code> and confirm with <code>Commit</code>
* Click on <code>Create</code> and confirm with <code>Commit</code>
* You should get: <code>Creation successful!</code>
* You should get: <code>Creation successful!</code>
* Note the first UUID in the attribute <code>sstSourceFile</code> ('''POOLUUID''')
* Note the first UUID in the attribute <code>sstSourceFile</code> ('''$POOLUUID''')


== Part II ==
== Part II ==


* Login to the VM node on which the VM is/was running
* Login to the VM node on which the VM is/was running
* Run the following command as root: <code>virsh vol-create-as '''POOLUUID''' '''DISKUUID'''.qcow2 '''DISKSIZE''' --allocation 0</code>
* Run the following command as root: <code>virsh vol-create-as '''$POOLUUID''' '''$DISKUUID'''.qcow2 '''$DISKSIZE''' --format qcow2 --allocation 0</code>
* You should get <code>Vol '''DISKUUID'''.qcow2 created</code>
* You should get: <code>Vol '''$DISKUUID'''.qcow2 created</code>
* Run: <code>chown root:vm-storage /var/virtualization/'''POOLUUID'''/'''DISKUUID'''.qcow2</code>
* Run: <code>chown root:vm-storage /var/virtualization/vm-*/'''$POOLUUID'''/'''$DISKUUID'''.qcow2</code>
* Run: <code>chmod g+rw /var/virtualization/'''POOLUUID'''/'''DISKUUID'''.qcow2</code>
* Run: <code>chmod g+rw /var/virtualization/vm-*/'''$POOLUUID'''/'''$DISKUUID'''.qcow2</code>
* Switch to the stoney cloud webinterface again and shutdown the VM (if not already done)
 
== Part III ==
 
* Open the stoney cloud webinterface (vm-manager)
* Shutdown the VM (if not already done)
* Click first on the <code>edit VM</code> icon and then <code>save</code> (without changing anything)
* Click first on the <code>edit VM</code> icon and then <code>save</code> (without changing anything)
* Start the VM again
* Start the VM again


[[Category:Workarounds]]
[[Category:Workarounds]]

Latest revision as of 12:14, 2 May 2014

Abstract

It is currently not possible to attach additional virtual disks directly via the webinterface.

What you do in principle:

  • Update the VMs configuration data in the LDAP directory
  • Manually create the virtual disk
  • Regenerate the VM configuration on the node

Step by step

Part I

  • In the vm-manager: Expand the VM entry for the VM you want to add an additional disk to and note the UUID below VM name ($VMUUID)
  • In a shell: Use uuidgen and generate a new UUID ($DISKUUID)
  • Calculate the size of the new disk in bytes: N * 1073741824 for N gigabyte ($DISKSIZE)
  • Open the URL http://YOURSTONEYCLOUD/phpldapadmin/ and login using dc=Manager,...
  • Navigate to: sstDisk=vda,ou=devices,sstVirtualMachine=$VMUUID,ou=virtual machines,ou=virtualization,ou=services,dc=stoney-cloud,dc=org using the tree structure on the left
  • Click on Copy or move this entry and choose sstDisk=vdb,ou=devices,sstVirtualMachine=$VMUUID,ou=virtual machines,ou=virtualization,ou=services,dc=foss-cloud,dc=org as Destination DN
  • Replace:
    • the UUID in sstVolumeName
    • and the same UUID in sstSourceFile with $DISKUUID (warning: in sstSourceFile are at least two UUIDs, replace only the one matching sstVolumeName)
    • the value in sstVolumeCapacity by $DISKSIZE
  • Click on Create and confirm with Commit
  • You should get: Creation successful!
  • Note the first UUID in the attribute sstSourceFile ($POOLUUID)

Part II

  • Login to the VM node on which the VM is/was running
  • Run the following command as root: virsh vol-create-as $POOLUUID $DISKUUID.qcow2 $DISKSIZE --format qcow2 --allocation 0
  • You should get: Vol $DISKUUID.qcow2 created
  • Run: chown root:vm-storage /var/virtualization/vm-*/$POOLUUID/$DISKUUID.qcow2
  • Run: chmod g+rw /var/virtualization/vm-*/$POOLUUID/$DISKUUID.qcow2

Part III

  • Open the stoney cloud webinterface (vm-manager)
  • Shutdown the VM (if not already done)
  • Click first on the edit VM icon and then save (without changing anything)
  • Start the VM again
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