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Update the SnapMirror policy

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PATCH /snapmirror/policies/{uuid}

Introduced In: 9.6

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 it replaces 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".

  • No "retention" properties can be modified if the "copy_all_source_snapshots" property is present in the policy.

  • The "copy_all_source_snapshots" property of a policy cannot be modified.

  • snapmirror policy modify

Example

Updating the "retention" property to add rules to a policy without any rules.

 PATCH "/api/snapmirror/policies/fe65686d-00dc-11e9-b5fb-0050568e3f83" '{"retention": [{"label": "newlabel", "count": 2}, {"label": "weekly", "count": 2, "creation_schedule": {"name": "weekly"}}, {"label": "daily", "count": 14}]}'

Updating the "retention" property to add rules to a policy with existing rules {"retention": [{"label": "oldLabel1", "count": 2}, {"label": "oldLabel2", "count": 5}]

 PATCH "/api/snapmirror/policies/fe65686d-00dc-11e9-b5fb-0050568e3f83" '{"retention": [{"label": "oldLabel1", "count": 2}, {"label": "oldLabel2", "count": 5}, {"label": "newlabel", "count": 3}, {"label": "weekly", "count": 1}]}'

Updating the "retention" property to remove a rule (oldLabel1) and add new rule to a policy with existing rules {"retention": [{"label": "oldLabel1", "count": 2}, {"label": "oldLabel2", "count": 3}]

 PATCH "/api/snapmirror/policies/fe65686d-00dc-11e9-b5fb-0050568e3f83" '{"retention": [{"label": "oldLabel2", "count": 3}, {"label": "newlabel", "count": 2}]}'

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

Parameters

Name Type In Required Description

uuid

string

path

True

Policy UUID

return_timeout

integer

query

False

The number of seconds to allow the call to execute before returning. When doing a POST, PATCH, or DELETE operation on a single record, the default is 0 seconds. This means that if an asynchronous operation is started, the server immediately returns HTTP code 202 (Accepted) along with a link to the job. If a non-zero value is specified for POST, PATCH, or DELETE operations, ONTAP waits that length of time to see if the job completes so it can return something other than 202.

  • Default value: 1

  • Max value: 120

  • Min value: 0

Request Body

Name Type Description

_links

_links

comment

string

Comment associated with the policy.

copy_all_source_snapshots

boolean

Specifies whether all source Snapshot copies should be copied to the destination on a transfer rather than specifying specific retentions. This is applicable only to async policies.

identity_preservation

string

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.

name

string

network_compression_enabled

boolean

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

retention

array[snapmirror_policy_rule]

Rules for Snapshot copy retention.

rpo

integer

Specifies the duration of time for which a change to be propogated to a mirror should be delayed, in seconds. This is an intentional propagation delay between mirrors and is configurable down to zero, which means an immediate propogation. This is supported for policies of type 'continuous'.

scope

string

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

svm

svm

sync_common_snapshot_schedule

sync_common_snapshot_schedule

Schedule used to create common Snapshot copies for synchronous relationships.

sync_type

string

throttle

integer

Throttle in KB/s. Default to unlimited.

transfer_schedule

transfer_schedule

The schedule used to update asynchronous relationships. Only cron schedules are supported for SnapMirror.

type

string

uuid

string
Example request 
{
  "_links": {
    "self": {
      "href": "/api/resourcelink"
    }
  },
  "comment": "string",
  "identity_preservation": "string",
  "name": "Asynchronous",
  "retention": [
    {
      "count": 7,
      "creation_schedule": {
        "_links": {
          "self": {
            "href": "/api/resourcelink"
          }
        },
        "name": "weekly",
        "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
      },
      "label": "hourly",
      "prefix": "string"
    }
  ],
  "rpo": 0,
  "scope": "string",
  "svm": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "svm1",
    "uuid": "02c9e252-41be-11e9-81d5-00a0986138f7"
  },
  "sync_common_snapshot_schedule": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "weekly",
    "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
  },
  "sync_type": "string",
  "throttle": 0,
  "transfer_schedule": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "name": "weekly",
    "uuid": "1cd8a442-86d1-11e0-ae1c-123478563412"
  },
  "type": "string",
  "uuid": "4ea7a442-86d1-11e0-ae1c-123478563412"
}

Response

Status: 202, Accepted
Name Type Description

job

job_link
Example response 
{
  "job": {
    "_links": {
      "self": {
        "href": "/api/resourcelink"
      }
    },
    "uuid": "string"
  }
}

Error

Status: Default

ONTAP Error Response codes

Error code Description

6619714

Schedule specified is an interval schedule. SnapMirror does not support interval schedules.

13303842

SnapMirror policy is not supported.

13303843

Conflicting values between SnapMirror policy and SnapMirror relationships for either 'transfer_schedule, throttle or identity_preservation' properties

13303850

Invalid input parameter

13303887

Failed to create SnapMirror policy. Reason: Maximum number of allowed retention rules reached
Name Type Description

error

error
Example error 
{
  "error": {
    "arguments": [
      {
        "code": "string",
        "message": "string"
      }
    ],
    "code": "4",
    "message": "entry doesn't exist",
    "target": "uuid"
  }
}

Definitions

See Definitions

href

Name Type Description

href

string

_links

Name Type Description

self

href

creation_schedule

Schedule used to create Snapshot copies on the destination for long term retention. Only cron schedules are supported for SnapMirror.

Name Type Description

_links

_links

name

string

Job schedule name

uuid

string

Job schedule UUID

snapmirror_policy_rule

SnapMirror policy rule for retention.

Name Type Description

count

integer

Number of Snapshot copies to be kept for retention.

creation_schedule

creation_schedule

Schedule used to create Snapshot copies on the destination for long term retention. Only cron schedules are supported for SnapMirror.

label

string

Snapshot copy label

prefix

string

Specifies the prefix for the Snapshot copy name to be created as per the schedule. If no value is specified, then the label is used as the prefix.

svm

Name Type Description

_links

_links

name

string

The name of the SVM.

uuid

string

The unique identifier of the SVM.

sync_common_snapshot_schedule

Schedule used to create common Snapshot copies for synchronous relationships.

Name Type Description

_links

_links

name

string

Job schedule name

uuid

string

Job schedule UUID

transfer_schedule

The schedule used to update asynchronous relationships. Only cron schedules are supported for SnapMirror.

Name Type Description

_links

_links

name

string

Job schedule name

uuid

string

Job schedule UUID

snapmirror_policy

SnapMirror policy information. SnapMirror policy can either be of type "async", "sync" or "continuous". 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. A policy of type "continuous" can be associated with SnapMirror relationships that have either ONTAP S3 buckets or NON-ONTAP object stores as endpoints. This type of policy is used for FabricLink owned targets.

Name Type Description

_links

_links

comment

string

Comment associated with the policy.

copy_all_source_snapshots

boolean

Specifies whether all source Snapshot copies should be copied to the destination on a transfer rather than specifying specific retentions. This is applicable only to async policies.

identity_preservation

string

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.

name

string

network_compression_enabled

boolean

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

retention

array[snapmirror_policy_rule]

Rules for Snapshot copy retention.

rpo

integer

Specifies the duration of time for which a change to be propogated to a mirror should be delayed, in seconds. This is an intentional propagation delay between mirrors and is configurable down to zero, which means an immediate propogation. This is supported for policies of type 'continuous'.

scope

string

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

svm

svm

sync_common_snapshot_schedule

sync_common_snapshot_schedule

Schedule used to create common Snapshot copies for synchronous relationships.

sync_type

string

throttle

integer

Throttle in KB/s. Default to unlimited.

transfer_schedule

transfer_schedule

The schedule used to update asynchronous relationships. Only cron schedules are supported for SnapMirror.

type

string

uuid

string
Name Type Description

_links

_links

uuid

string

The UUID of the asynchronous job that is triggered by a POST, PATCH, or DELETE operation.

error_arguments

Name Type Description

code

string

Argument code

message

string

Message argument

error

Name Type Description

arguments

array[error_arguments]

Message arguments

code

string

Error code

message

string

Error message

target

string

The target parameter that caused the error.