get_all_records_where

In [13]: s.xenapi.VDI.get_all_records_where('field "name__label" = "win7.iso"')
Out[13]: 
{'OpaqueRef:d10ac97a-137d-3258-dcbf-23d292f96eb7': {'SR': 'OpaqueRef:fca40ee2-08df-0a57-139e-6cce980f621a',
  'VBDs': [],
  'allow_caching': False,
  'allowed_operations': ['copy', 'snapshot'],
  'crash_dumps': [],
  'current_operations': {},
  'is_a_snapshot': False,
  'location': 'win7.iso',
  'managed': True,
  'metadata_latest': False,
  'metadata_of_pool': 'OpaqueRef:NULL',
  'missing': False,
  'name_description': '',
  'name_label': 'win7.iso',
  'on_boot': 'persist',
  'other_config': {'content_id': '57160295-88e0-9f62-22fb-1e593fdadfe3'},
  'parent': 'OpaqueRef:NULL',
  'physical_utilisation': '2400419840',
  'read_only': True,
  'sharable': False,
  'sm_config': {},
  'snapshot_of': 'OpaqueRef:NULL',
  'snapshot_time': <DateTime '19700101T00:00:00Z' at 7f6053627878>,
  'snapshots': [],
  'storage_lock': False,
  'tags': [],
  'type': 'user',
  'uuid': '3b789fa7-3110-439d-8a27-977b7ff002d8',
  'virtual_size': '2400419840',
  'xenstore_data': {}}}