Changes

Libvirt external snapshot with GlusterFS

1,171 bytes added, 15:07, 14 May 2014
/* Command overview */
# when finished, have Qemu finish it (TODO: check whether we would have to install a dirty block tracer at some point):
# EDIT PKL: No we don't need to trace the dirty blocks as qemu already does something similar. After the block commit,
# both disks are in a way synchronized. I.e. if a write operation is performed, it is written to the snapshot image as
# well as to base image. After the block-job-complete command the write operations are written to the base image only
virsh qemu-monitor-command 8196bb77-7478-4bfb-a6ea-52b3a2c65eba --pretty '{"execute": "block-job-complete", "arguments": { "device": "drive-virtio-disk0"} }'
virsh edit 8196bb77-7478-4bfb-a6ea-52b3a2c65eba
</source>
 
== VSS & Qemu-GA ==
 
'''TODO''': at the moment, the following error appears in the Windows Application Log:
<pre>
Volume Shadow Copy Service error: Unexpected error querying for the iVssWriterCallback interface, hr = 0x8007005, Access is denied.
</pre>
 
This error can be solved by executing the following steps:
* From the Start Menu, select Run
** In the Open field, input dcomcnfg and click OK.
* OR Open the PowerShell and type dcomcnfg.exe and hit enter
* Expand Component Services, Computers, and My Computer.
** Right-click My Computer and click Properties on the pop-up menu.
* Click the COM Security tab.
** Under Access Permission click Edit Default.
** From the Access Permissions dialog, add the "Network Service" account with Local Access allowed.
* Close all open dialogs.
* Restart the computer.
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