Cinder

Is it possible to change the volume backing file size?

Asked by Vincent Hou

By specifying the value for VOLUME_BACKING_FILE_SIZE in localrc, devstack can determize the total size for volumes and volume snapshots.
After I have run the devstack for the first time, is it possible to change the volume backing file size?
I have tried to change the value for VOLUME_BACKING_FILE_SIZE, but it did not seem to work. The size is still the same to the one I gave for the first time.

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Solved
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Cinder Edit question
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Solved by:
Mike Perez
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This question was originally filed as bug #1028707.

Revision history for this message
Vincent Hou (houshengbo) said : 		#1

By specifying the value for VOLUME_BACKING_FILE_SIZE in localrc, devstack can determize the total size for volumes and volume snapshots.
After I have run the devstack for the first time, is it possible to change the volume backing file size?
I have tried to change the value for VOLUME_BACKING_FILE_SIZE, but it did not seem to work. The size is still the same to the one I gave for the first time.

Revision history for this message
Best Mike Perez (thingee) said : 		#2

You have to do the following:

1) Delete /opt/stack/data/stack-volumes-backing-file
2) Delete the volume group by running the following command: vgchange -a n stack-volumes && vgremove stack-volumes

Then rerun devstack.

Revision history for this message
Vincent Hou (houshengbo) said : 		#3

Thanks Mike Perez, that solved my question.