openstack/cinder
Code Issues Proposed changes

[Pure Storage] Add volume metadata

Browse Source 
Add two fields to the volume metadata to expose the
actual backend array the volume is created on and
the actual volume name on the backend array.

When multiple OpenStack clusters are using the same
backend array, or if there are multiple backends that
the cinder scheduler can choose from, this makes
identification and location of the physical volume
easier for the storage administrator.

[pylint] Fix two bad member references

Change-Id: Ib4135c67f57c36de31fdcd8b23976b2fafabdc91
This commit is contained in:
Simon Dodsley 2021-11-16 09:55:00 -05:00
parent 8e3bf3af21
commit d5cfbf41f2
2 changed files with 45 additions and 11 deletions
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48
cinder/volume/drivers/pure.py
View File

@ -431,10 +431,22 @@ class PureBaseVolumeDriver(san.SanDriver):
for vol in volumes:
if not vol.provider_id:
vol.provider_id = self._get_vol_name(vol)
vol_updates.append({
'id': vol.id,
'provider_id': self._generate_purity_vol_name(vol),
})
vol_name = self._generate_purity_vol_name(vol)
if vol.metadata:
vol_updates.append({
'id': vol.id,
'provider_id': vol_name,
'metadata': {**vol.metadata,
'array_volume_name': vol_name,
'array_name': self._array.array_name},
})
else:
vol_updates.append({
'id': vol.id,
'provider_id': vol_name,
'metadata': {'array_volume_name': vol_name,
'array_name': self._array.array_name},
})
return vol_updates, None
@pure_driver_debug_trace
@ -529,11 +541,23 @@ class PureBaseVolumeDriver(san.SanDriver):
if self._is_vol_in_pod(purity_vol_name) or async_enabled:
repl_status = fields.ReplicationStatus.ENABLED
model_update = {
'id': volume.id,
'provider_id': purity_vol_name,
'replication_status': repl_status,
}
if not volume.metadata:
model_update = {
'id': volume.id,
'provider_id': purity_vol_name,
'replication_status': repl_status,
'metadata': {'array_volume_name': purity_vol_name,
'array_name': self._array.array_name}
}
else:
model_update = {
'id': volume.id,
'provider_id': purity_vol_name,
'replication_status': repl_status,
'metadata': {**volume.metadata,
'array_volume_name': purity_vol_name,
'array_name': self._array.array_name}
}
return model_update
def _enable_async_replication_if_needed(self, array, volume):
@ -740,7 +764,7 @@ class PureBaseVolumeDriver(san.SanDriver):
except purestorage.PureError as err:
# Swallow any exception, just warn and continue
LOG.warning("Disconnect on secondary array failed with"
" message: %(msg)s", {"msg": err.text})
" message: %(msg)s", {"msg": err.reason})
# Now disconnect from the current array
self._disconnect(self._get_current_array(), volume,
connector, remove_remote_hosts=False,
@ -1318,6 +1342,8 @@ class PureBaseVolumeDriver(san.SanDriver):
return {
'provider_id': new_vol_name,
'replication_status': repl_status,
'metadata': {'array_volume_name': new_vol_name,
'array_name': current_array.array_name},
}
@pure_driver_debug_trace
@ -2855,7 +2881,7 @@ class PureFCDriver(PureBaseVolumeDriver, driver.FibreChannelDriver):
except purestorage.PureError as err:
# Swallow any exception, just warn and continue
LOG.warning("Disconnect on sendondary array failed with"
" message: %(msg)s", {"msg": err.text})
" message: %(msg)s", {"msg": err.reason})
# Now disconnect from the current array, removing any left over
# remote hosts that we maybe couldn't reach.

8
releasenotes/notes/pure_storage_add_volume_metadata-89f1e23573efcf83.yaml Normal file
View File

@ -0,0 +1,8 @@
---
features:
- |
Pure Storage driver adds volume metadata describing the backend
array name (``array_name``) and volume name (``array_volume_name``).
This allows easier identification and location of a cinder volume
when multiple clusters are using the same backend arrays, or when
the cinder scheduler has multiplae backends to choose from.