# Module `netapp_ontap.resources.snapmirror_policy`

Copyright © 2020 NetApp Inc. All rights reserved.

## Managing SnapMirror policies

This API is used to manage SnapMirror policies of type "async" and "sync". When applied to a SnapMirror relationship, the SnapMirror policy controls the behavior of the relationship and specifies the configuration attributes for that relationship.
The policy type "async" can be associated with a SnapMirror relationship that has either the FlexVol volume or FlexGroup volume or SVM as the endpoint.
The policy type "sync" can be associated with a SnapMirror relationship that has FlexVol volume or a Consistency Group as the endpoint. The policy type "sync" can have a "sync_type" of either "sync", "strict_sync" or "automated_failover". If the "sync_type" is "sync" then a write success is returned to the client after writing the data to the primary endpoint and before writing the data to the secondary endpoint. If the "sync_type" is "strict_sync" then a write success is returned to the client after writing the data to the both primary and secondary endpoints.
The "sync_type" of "automated_failover" can be associated with a SnapMirror relationship that has Consistency Group as the endpoint.<\br> Mapping of SnapMirror policies from CLI to REST |--------------------|----------------------------| | CLI | REST | |--------------------|----------------------------| |mirror-vault | async | |--------------------|----------------------------| | | | sync_type | | | |--------------------| |sync-mirror | sync | sync | |strict-sync-mirror | sync | strict_sync | |automated-failover | sync | automated_failover | |--------------------|----------------------------|

## Classes

`class SnapmirrorPolicy (*args, **kwargs)`

  SnapMirror policy information. SnapMirror policy can either be of type "async" or "sync".
  The policy type "async" can be associated with a SnapMirror relationship that has either the FlexVol volume or FlexGroup volume or SVM as the endpoint.
  The policy type "sync" along with "sync_type" as "sync" or "strict_sync" can be associated with a SnapMirror relationship that has FlexVol volume as the endpoint. The policy type "sync" can have a "sync_type" of either "sync", "strict_sync" or "automated_failover". If the "sync_type" is "sync" then a write success is returned to the client after writing the data to the source endpoint and before writing the data to the destination endpoint. If the "sync_type" is "strict_sync" then a write success is returned to the client after writing the data to the both source and destination endpoints.
  If the "sync_type" is "automated_failover" then the policy can be associated with a SnapMirror relationship that has Consistency Group as the endpoint. Use the "sync" policy with "sync_type" as "automated_failover" to establish SnapMirror relationships for business continuity usecases. SnapMirror relationships with policy type as "sync" and "sync_type" as "automated_failover" can be monitored by the Mediator, if configured. In case the source Consistency Group endpoint is not reachable, the Mediator may trigger a failover to the destination Consistency Group endpoint.

  Initialize the instance of the resource.

  Any keyword arguments are set on the instance as properties. For example, if the class was named 'MyResource', then this statement would be true:

      MyResource(name='foo').name == 'foo'

  ## Args

  `*args`
    Each positional argument represents a parent key as used in the URL of the object. That is, each value will be used to fill in a segment of the URL which refers to some parent object. The order of these arguments must match the order they are specified in the URL, from left to right.
  `**kwargs`
    each entry will have its key set as an attribute name on the instance and its value will be the value of that attribute.

  ### Ancestors

  - Resource

  ### Static methods

  `def count_collection(*args, connection: HostConnection = None, **kwargs) -> int`

    Retrieves SnapMirror policies of type "async" and "sync".

    ### Related ONTAP commands

    - `snapmirror policy show`

    ### Example

    The following example shows how to retrieve a collection of SnapMirror policies.

        GET "/api/snapmirror/policies"

    ### Learn more

    - `DOC /snapmirror/policies`

    Fetch a count of all objects of this type from the host.

    This calls GET on the object to determine the number of records. It is more efficient than calling get_collection() because it will not construct any objects. Query parameters can be passed in as kwargs to determine a count of objects that match some filtered criteria.

    ## Args

    `*args`
      Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to get the count of bars for a particular foo, the foo.name value should be passed.
    `connection`
      The `HostConnection` object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
    `**kwargs`
      Any key/value pairs passed will be sent as query parameters to the host. These query parameters can affect the count. A return_records query param will be ignored.

    ## Returns

    On success, returns an integer count of the objects of this type. On failure, returns -1.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400, or if there is no connection available to use either passed in or on the library.

  `def delete_collection(*args, body: typing.Union = None, connection: HostConnection = None, **kwargs) -> NetAppResponse`

    Deletes a SnapMirror policy.

    ### Related ONTAP commands

    - `snapmirror policy delete`

    ### Example

        DELETE "/api/snapmirror/policies/510c15d4-f9e6-11e8-bdb5-0050568e12c2"

    ### Learn more

    - `DOC /snapmirror/policies`

    Delete all objects in a collection which match the given query.

    All records on the host which match the query will be deleted.

    ## Args

    `*args`
      Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to delete the collection of bars for a particular foo, the foo.name value should be passed.
    `body`
      The body of the delete request. This could be a Resource instance or a dictionary object.
    `connection`
      The `HostConnection` object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
    `**kwargs`
      Any key/value pairs passed will be sent as query parameters to the host. Only resources matching this query will be patched.

    ## Returns

    A `NetAppResponse` object containing the details of the HTTP response.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400

  `def find(*args, connection: HostConnection = None, **kwargs) -> Resource`

    Retrieves SnapMirror policies of type "async" and "sync".

    ### Related ONTAP commands

    - `snapmirror policy show`

    ### Example

    The following example shows how to retrieve a collection of SnapMirror policies.

        GET "/api/snapmirror/policies"

    ### Learn more

    - `DOC /snapmirror/policies`

    Find an instance of an object on the host given a query.

    The host will be queried with the provided key/value pairs to find a matching resource. If 0 are found, None will be returned. If more than 1 is found, an error will be raised or returned. If there is exactly 1 matching record, then it will be returned.

    ## Args

    `*args`
      Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to find a bar for a particular foo, the foo.name value should be passed.
    `connection`
      The `HostConnection` object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
    `**kwargs`
      Any key/value pairs passed will be sent as query parameters to the host.

    ## Returns

    A `Resource` object containing the details of the object or None if no matches were found.

    ## Raises

    `NetAppRestError`: If the API call returned more than 1 matching resource.

  `def get_collection(*args, connection: HostConnection = None, max_records: int = None, **kwargs) -> typing.Iterable`

    Retrieves SnapMirror policies of type "async" and "sync".

    ### Related ONTAP commands

    - `snapmirror policy show`

    ### Example

    The following example shows how to retrieve a collection of SnapMirror policies.

        GET "/api/snapmirror/policies"

    ### Learn more

    - `DOC /snapmirror/policies`

    Fetch a list of all objects of this type from the host.

    This is a lazy fetch, making API calls only as necessary when the result of this call is iterated over. For instance, if max_records is set to 5, then iterating over the collection causes an API call to be sent to the server once for every 5 records. If the client stops iterating before getting to the 6th record, then no additional API calls are made.

    ## Args

    `*args`
      Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to get the collection of bars for a particular foo, the foo.name value should be passed.
    `connection`
      The `HostConnection` object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
    `max_records`
      The maximum number of records to return per call
    `**kwargs`
      Any key/value pairs passed will be sent as query parameters to the host.

    ## Returns

    A list of `Resource` objects

    ## Raises

    `NetAppRestError`: If there is no connection available to use either passed in or on the library. This would be not be raised when get_collection() is called, but rather when the result is iterated.

  `def patch_collection(body: dict, *args, connection: HostConnection = None, **kwargs) -> NetAppResponse`

    Updates the SnapMirror policy.

    ### Important notes

    - The properties "transfer_schedule" and "throttle" can be modified only if all the SnapMirror relationships associated with the specified SnapMirror policy have the same values.
    - The properties "retention.label" and "retention.count" are mandatory if "retention" is provided in the input. The provided "retention.label" is the final list and is replaced with the existing values.
    - The value of the "identity_preservation" property cannot be changed if the SnapMirror relationships associated with the policy have different identity_preservation configurations.
    - If the SnapMirror policy "identity_preservation" value matches the "identity_preservation" value of the associated SnapMirror relationships, then the "identity_preservation" value can be changed from a higher "identity_preservation" threshold value to a lower "identity_preservation" threshold value but not vice-versa. For example, the threshold value of the "identity_preservation" property can be changed from "full" to "exclude_network_config" to "exclude_network_and_protocol_config", but could not be increased from "exclude_network_and_protocol_config" to "exclude_network_config" to "full".

    ### Related ONTAP commands

    - `snapmirror policy modify`

    ### Example

    Updating the "retention" property
    `PATCH "/api/snapmirror/policies/fe65686d-00dc-11e9-b5fb-0050568e3f83" '{"retention" : {"label" : ["sm_created", "lab2"], "count": ["1","2"], "creation_schedule": {"name": ["weekly"]}}}'`
    Updating "transfer_schedule", "throttle", and "identity_preservation" properties
    `PATCH "/api/snapmirror/policies/8aef950b-3bef-11e9-80ac-0050568ea591" '{"transfer_schedule.name" : "weekly", "throttle" : "100", "identity_preservation":"exclude_network_and_protocol_config"}'`

    ### Learn more

    - `DOC /snapmirror/policies`

    Patch all objects in a collection which match the given query.

    All records on the host which match the query will be patched with the provided body.

    ## Args

    `body`
      A dictionary of name/value pairs to set on all matching members of the collection.
    `*args`
      Each entry represents a parent key which is used to build the path to the child object. If the URL definition were /api/foos/{foo.name}/bars, then to patch the collection of bars for a particular foo, the foo.name value should be passed.
    `connection`
      The `HostConnection` object to use for this API call. If unset, tries to use the connection which is set globally for the library or from the current context.
    `**kwargs`
      Any key/value pairs passed will be sent as query parameters to the host. Only resources matching this query will be patched.

    ## Returns

    A `NetAppResponse` object containing the details of the HTTP response.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400

  ### Methods

  `def delete(self, body: typing.Union = None, poll: bool = True, poll_interval: typing.Union = None, poll_timeout: typing.Union = None, **kwargs) -> NetAppResponse`

    Deletes a SnapMirror policy.

    ### Related ONTAP commands

    - `snapmirror policy delete`

    ### Example

        DELETE "/api/snapmirror/policies/510c15d4-f9e6-11e8-bdb5-0050568e12c2"

    ### Learn more

    - `DOC /snapmirror/policies`

    Send a deletion request to the host for this object.

    ## Args

    `body`
      The body of the delete request. This could be a Resource instance or a dictionary object.
    `poll`
      If set to True, the call will not return until the asynchronous job on the host has completed. Has no effect if the host did not return a job response.
    `poll_interval`
      If the operation returns a job, this specifies how often to query the job for updates.
    `poll_timeout`
      If the operation returns a job, this specifies how long to continue monitoring the job's status for completion.
    `**kwargs`
      Any key/value pairs passed will be sent as query parameters to the host.

    ## Returns

    A `NetAppResponse` object containing the details of the HTTP response.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400

  `def get(self, **kwargs) -> NetAppResponse`

    Retrieves a specific SnapMirror policy.

    ### Example

        GET "/api/snapmirror/policies/567aaac0-f863-11e8-a666-0050568e12c2"

    ### Learn more

    - `DOC /snapmirror/policies`

    Fetch the details of the object from the host.

    Requires the keys to be set (if any). After returning, new or changed properties from the host will be set on the instance.

    ## Returns

    A `NetAppResponse` object containing the details of the HTTP response.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400

  `def patch(self, hydrate: bool = False, poll: bool = True, poll_interval: typing.Union = None, poll_timeout: typing.Union = None, **kwargs) -> NetAppResponse`

    Updates the SnapMirror policy.

    ### Important notes

    - The properties "transfer_schedule" and "throttle" can be modified only if all the SnapMirror relationships associated with the specified SnapMirror policy have the same values.
    - The properties "retention.label" and "retention.count" are mandatory if "retention" is provided in the input. The provided "retention.label" is the final list and is replaced with the existing values.
    - The value of the "identity_preservation" property cannot be changed if the SnapMirror relationships associated with the policy have different identity_preservation configurations.
    - If the SnapMirror policy "identity_preservation" value matches the "identity_preservation" value of the associated SnapMirror relationships, then the "identity_preservation" value can be changed from a higher "identity_preservation" threshold value to a lower "identity_preservation" threshold value but not vice-versa. For example, the threshold value of the "identity_preservation" property can be changed from "full" to "exclude_network_config" to "exclude_network_and_protocol_config", but could not be increased from "exclude_network_and_protocol_config" to "exclude_network_config" to "full".

    ### Related ONTAP commands

    - `snapmirror policy modify`

    ### Example

    Updating the "retention" property
    `PATCH "/api/snapmirror/policies/fe65686d-00dc-11e9-b5fb-0050568e3f83" '{"retention" : {"label" : ["sm_created", "lab2"], "count": ["1","2"], "creation_schedule": {"name": ["weekly"]}}}'`
    Updating "transfer_schedule", "throttle", and "identity_preservation" properties
    `PATCH "/api/snapmirror/policies/8aef950b-3bef-11e9-80ac-0050568ea591" '{"transfer_schedule.name" : "weekly", "throttle" : "100", "identity_preservation":"exclude_network_and_protocol_config"}'`

    ### Learn more

    - `DOC /snapmirror/policies`

    Send the difference in the object's state to the host as a modification request.

    Calculates the difference in the object's state since the last time we interacted with the host and sends this in the request body.

    ## Args

    `hydrate`
      If set to True, after the response is received from the call, a a GET call will be made to refresh all fields of the object.
    `poll`
      If set to True, the call will not return until the asynchronous job on the host has completed. Has no effect if the host did not return a job response.
    `poll_interval`
      If the operation returns a job, this specifies how often to query the job for updates.
    `poll_timeout`
      If the operation returns a job, this specifies how long to continue monitoring the job's status for completion.
    `**kwargs`
      Any key/value pairs passed will normally be sent as query parameters to the host. If any of these pairs are parameters that are sent as formdata then only parameters of that type will be accepted and all others will be discarded.

    ## Returns

    A `NetAppResponse` object containing the details of the HTTP response.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400

  `def post(self, hydrate: bool = False, poll: bool = True, poll_interval: typing.Union = None, poll_timeout: typing.Union = None, **kwargs) -> NetAppResponse`

    Creates a SnapMirror policy. The property "identity_preservation" is applicable to only SnapMirror relationships with SVM endpoints and it indicates which configuration of the source SVM is replicated to the destination SVM. It takes the following values: - `full` - indicates that the source SVM configuration is replicated to the destination SVM endpoint. - `exclude_network_config` - indicates that the source SVM configuration other than network configuration is replicated to the destination SVM endpoint. - `exclude_network_and_protocol_config` - indicates that the source SVM configuration is not replicated to the destination SVM endpoint.

    ### Important note

    - The property "identity_preservation" is applicable to only SnapMirror relationships with SVM endpoints and it indicates which configuration of the source SVM is replicated to the destination SVM.
    - The properties "identity_preservation" and "transfer_schedule" are not applicable for "sync" type policies.
    - The properties "retention.creation_schedule" and "retention.prefix" are not applicable for "sync" type policies.
    - The property "sync_common_snapshot_schedule" is not applicable for an "async" type policy.
    - The property "retention.count" specifies the maximum number of Snapshot copies that are retained on the SnapMirror destination volume.
    - When the property "retention.label" is specified, the Snapshot copies that have a SnapMirror label matching this property is transferred to the SnapMirror destination.
    - When the property "retention.creation_schedule" is specified, Snapshot copies are directly created on the SnapMirror destination. The Snapshot copies created have the same content as the latest Snapshot copy already present on the SnapMirror destination.

    ### Required properties

    - `name` - Name of the new SnapMirror policy.

    ### Recommended optional properties

    - `svm.name` or `svm.uuid` - Name or UUID of the SVM that owns the SnapMirror policy.

    ### Default property values

    If not specified in POST, the following default property values are assigned: * `type` - async * `sync_type` - sync (when `type` is sync) * `network_compression_enabled` - false * `throttle` - 0 * `identity_preservation` - `_exclude_network_and_protocol_config_`

    ### Related ONTAP commands

    - `snapmirror policy create`

    ### Examples

    Creating a SnapMirror policy of type "sync"
    `POST "/api/snapmirror/policies/" '{"name": "policy1", "svm.name": "VS0", "type": "sync", "sync_type": "sync"}'`
    Creating a SnapMirror policy of type "async" with retention values
    `POST "/api/snapmirror/policies" '{"name": "policy_ret", "svm": {"name": "vs1"}, "retention": {"label": ["smcreate"], "count": ["2"], "creation_schedule": ["weekly"]}}'`
    Creating a SnapMirror policy of type "async" `POST "/api/snapmirror/policies" '{"name": "newPolicy", "svm":{"name" : "vs1"}, "type": "async"}'`
    Creating a SnapMirror policy of type "sync" with sync_type as "automated_failover"
    `POST "/api/snapmirror/policies/" '{"name": "policy1", "svm.name": "VS0", "type": "sync", "sync_type": "automated_failover" }'`

    ### Learn more

    - `DOC /snapmirror/policies`

    Send this object to the host as a creation request.

    ## Args

    `hydrate`
      If set to True, after the response is received from the call, a a GET call will be made to refresh all fields of the object.
    `poll`
      If set to True, the call will not return until the asynchronous job on the host has completed. Has no effect if the host did not return a job response.
    `poll_interval`
      If the operation returns a job, this specifies how often to query the job for updates.
    `poll_timeout`
      If the operation returns a job, this specifies how long to continue monitoring the job's status for completion.
    `**kwargs`
      Any key/value pairs passed will normally be sent as query parameters to the host. If any of these pairs are parameters that are sent as formdata then only parameters of that type will be accepted and all others will be discarded.

    ## Returns

    A `NetAppResponse` object containing the details of the HTTP response.

    ## Raises

    `NetAppRestError`: If the API call returned a status code >= 400

  ### Inherited members

  - `Resource`:
    - `from_dict`
    - `get_collection_url`
    - `get_connection`
    - `instance_location`
    - `path_keys`
    - `poll`
    - `set_connection`
    - `to_dict`
`class SnapmirrorPolicySchema (*, only: typing.Union = None, exclude: typing.Union = (), many: bool = False, context: typing.Dict = None, load_only: typing.Union = (), dump_only: typing.Union = (), partial: typing.Union = False, unknown: str = None)`

  The fields of the SnapmirrorPolicy object

  ### Ancestors

  - netapp_ontap.resource.ResourceSchema
  - marshmallow.schema.Schema
  - marshmallow.base.SchemaABC

  ### Class variables

  `comment GET POST PATCH`

    Comment associated with the policy.

  `identity_preservation GET POST PATCH`

    Specifies which configuration of the source SVM is replicated to the destination SVM. This property is applicable only for SVM data protection with "async" policy type.

    Valid choices:

    - full
    - exclude_network_config
    - exclude_network_and_protocol_config
  `links GET`

    The links field of the snapmirror_policy.

  `name GET POST`

    The name field of the snapmirror_policy.

    Example: Asynchronous

  `network_compression_enabled GET POST PATCH`

    Specifies whether network compression is enabled for transfers. This is applicable only to the policies of type "async".

  `retention GET POST PATCH`

    Policy on Snapshot copy retention.

  `scope GET`

    Set to "svm" for policies owned by an SVM, otherwise set to "cluster".

    Valid choices:

    - svm
    - cluster
  `svm GET POST`

    The svm field of the snapmirror_policy.

  `sync_common_snapshot_schedule GET POST PATCH`

    The sync_common_snapshot_schedule field of the snapmirror_policy.

  `sync_type GET POST`

    The sync_type field of the snapmirror_policy.

    Valid choices:

    - sync
    - strict_sync
    - automated_failover
  `throttle GET POST PATCH`

    Throttle in KB/s. Default to unlimited.

  `transfer_schedule GET POST PATCH`

    The transfer_schedule field of the snapmirror_policy.

  `type GET POST`

    The type field of the snapmirror_policy.

    Valid choices:

    - async
    - sync
  `uuid GET`

    The uuid field of the snapmirror_policy.

    Example: 4ea7a442-86d1-11e0-ae1c-123478563412