Workaround Attach Additional Disk to VM: Difference between revisions

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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''')
* Expand the VM entry for the VM you want to add an additional disk to and note the UUID below VM name ('''$VMUUID''')
* Use <code>uuidgen</code> and generate a new UUID ('''DISKUUID''')
* Use <code>uuidgen</code> and generate a new UUID ('''$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=foss-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''' --format qcow2 --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/vm-*/'''POOLUUID'''/'''DISKUUID'''.qcow2</code>
* Run: <code>chown root:vm-storage /var/virtualization/vm-*/'''$POOLUUID'''/'''$DISKUUID'''.qcow2</code>
* Run: <code>chmod g+rw /var/virtualization/vm-*/'''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)
* Switch to the stoney cloud webinterface again and 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)

Revision as of 14:13, 22 July 2013

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 data in the LDAP directory
  • Manually reate the virtual disk
  • Regenerate the VM configuration on the node

Step by step

Part I

  • Expand the VM entry for the VM you want to add an additional disk to and note the UUID below VM name ($VMUUID)
  • Use uuidgen and generate a new UUID ($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=foss-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
  • Switch to the stoney cloud webinterface again and 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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