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[Xen-devel] Re: VDI size on local repository always 0

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Dante <dantespace.ml@xxxxxxxxx>
  • Date: Thu, 6 May 2010 11:07:24 +0200
  • Delivery-date: Thu, 06 May 2010 02:09:35 -0700
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Hi guys,
   from file XendVDI.py:

class XendQCoWVDI(XendVDI):
    def __init__(self, uuid, sr_uuid, qcow_path, cfg_path, vsize, psize):
        XendVDI.__init__(self, uuid, sr_uuid)
        self.auto_save = False
        self.qcow_path = qcow_path
        self.cfg_path = cfg_path
        self.physical_utilisation = psize
        self.virtual_size = vsize
        self.auto_save = True
        self.other_config['location'] = 'tap:qcow:%s' % self.qcow_path

    def get_location(self):
        return self.other_config['location']

class XendLocalVDI(XendVDI):
    def __init__(self, vdi_struct):
        vdi_uuid = vdi_struct['uuid']
        sr_uuid = vdi_struct['SR']
        XendVDI.__init__(self, vdi_uuid, sr_uuid)

        self.auto_save = False
        self.cfg_path = None
        self.name_label = vdi_struct.get('name_label','')
        self.name_description = vdi_struct.get('name_description', '')
        self.physical_utilisation = 0
        self.virtual_size = 0
        self.type = vdi_struct.get('type', '')
        self.sharable = vdi_struct.get('sharable', False)
        self.read_only = vdi_struct.get('read_only', False)
        self.other_config = vdi_struct.get('other_config', {})

As you can see no physical utilisation and virtual size value in local repository. So, how could it possible to check vdi size?


On Wed, May 5, 2010 at 1:40 PM, Dante <dantespace.ml@gmail.com> wrote:
Hello guys,
   I'm working on a cloud computing project involving Xen Hypervisor. I looked for the issue described in the subject in old posts but no success. I'm using the local storage repository and I can't set physical_utilisation and virtual_utilisation via xen API because XendVDI.py has hardcoded the 0 value for local repository while is passed for QcoW storage repoistory.
   Any reason why is VDI implemented in this way? I have to use a workaround and set size in description field to retrieve this information but it's quite annoying since there is a field dedicated to it.
   Posting this question in both xen-devel and xen-api mailing list. I think the question is cross-mailing-list. Sorry for duplication.

Thanks in advance for your help!

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