def pvremove(pvname):
pv = filter(lambda x: x['name'] == pvname, pvdisplay())
# check if pv exists
if not pv:
raise errors.PVNotFoundError(
'Error while removing pv: pv %s not found' % pvname)
# check if pv is attached to some vg
if pv[0]['vg'] is not None:
raise errors.PVBelongsToVGError('Error while removing pv: '
'pv belongs to vg %s' % pv[0]['vg'])
utils.execute('pvremove', '-ff', '-y', pvname, check_exit_code=[0])
def _vg_attach_validate(pvnames):
pvs = pvdisplay()
# check if all necessary pv exist
if not set(pvnames).issubset(set([pv['name'] for pv in pvs])):
raise errors.PVNotFoundError(
'Error while creating vg: at least one of pv is not found')
# check if all necessary pv are not already attached to some vg
if not set(pvnames).issubset(
set([pv['name'] for pv in pvs if pv['vg'] is None])):
raise errors.PVBelongsToVGError(
'Error while creating vg: at least one of pvs is '
'already attached to some vg')
def pvremove(pvname):
pv = get_first_by_key_value(pvdisplay(), 'name', pvname)
# check if pv exists
if not pv:
raise errors.PVNotFoundError(
'Error while removing pv: pv %s not found' % pvname)
# check if pv is attached to some vg
if pv['vg'] is not None:
raise errors.PVBelongsToVGError('Error while removing pv: '
'pv belongs to vg %s' % pv['vg'])
utils.execute('pvremove', '-ff', '-y', pvname, check_exit_code=[0])
def vgreduce(vgname, pvname, *args):
# check if vg exists
if not filter(lambda x: x['name'] == vgname, vgdisplay()):
raise errors.VGNotFoundError(
'Error while reducing vg: vg %s not found' % vgname)
pvnames = [pvname] + list(args)
# check if all necessary pv are attached to vg
if not set(pvnames).issubset(
set([pv['name'] for pv in pvdisplay() if pv['vg'] == vgname])):
raise errors.PVNotFoundError(
'Error while reducing vg: at least one of pv is '
'not attached to vg')
utils.execute('vgreduce', '-f', vgname, *pvnames, check_exit_code=[0])
