Table of Contents

FLI Setup and Import workflow

The FLI Setup and Import workflow enables you to prepare and initiate third-party LUN imports. You can select the required foreign disks, create a LUN and take it offline, bring it online for read/write access, map the newly created LUN to an existing initiator group (igroup), set up the LUN import, and verify that the LUN is imported.

Migration of block-level data is a common scenario when you plan for storage consolidation in your data center, purchase or lease new storage arrays, or perform technology refreshes. This requires data migration from one array to another, usually from one vendor array to another. Foreign LUN import (FLI) is a storage-array based migration method that enables a minimally disruptive transition for importing your data from third-party array LUNs to NetApp LUNs.

FLI can be done in two ways, offline FLI or online FLI. The offline FLI functionality supported in Data ONTAP 8.3 and later, does not allow applications to access LUNs that are being migrated while FLI is active. The online FLI functionality supported in Data ONTAP 8.3.1 allows applications to continue to access data while the corresponding LUNs are being imported.

FLI for migrating data from third-party LUNs includes the following three initial phases:

Pre-cutover phase
This phase involves backing up foreign LUNs, configuring the SAN host, and configuring the foreign array.
Cutover phase
This phase involves taking the host applications offline, ensuring that no further access is available from the SAN host to the foreign LUNs outside of clustered Data ONTAP, and presenting NetApp LUNs to the SAN host by adding them to the igroup.
Post-cutover phase
This phase involves bringing the host back online, initiating the import of one or more foreign LUNs, and breaking the import relationship when the import is complete.

The LUN import process occurs in five different phases. The following image illustrates the five phases of SAN data migration.


The image displays the phases in SAN data migration.

This workflow automates the planning phase of the data migration in which you can schedule and verify the LUN import.

Prerequisites for executing the FLI Setup and Import workflow

You must ensure that certain requirements are met before executing the FLI Setup and Import workflow. You must be a cluster administrator for executing this workflow.

  • Your system must be running clustered Data ONTAP.
    Note: This workflow is qualified to work with Data ONTAP 8.3.1 and later.
  • OnCommand Workflow Automation (WFA) 3.1 or later must be installed.
  • You must have added OnCommand Unified Manager 6.3 or later as a data source in WFA and obtained the latest Unified Manager data.
  • You must be using fabric that enables a NetApp cluster to discover the back-end LUNs from third-party arrays.
  • You must ensure that your NetApp cluster has large enough aggregates and volumes to hold the migrated data from the foreign LUNs.
  • The destination Storage Virtual Machine (SVM) and igroup must already exist.
  • The destination FlexVol volume must already exist.
  • You must have ensured that paths to the foreign disks from all the nodes in the cluster are reachable.
  • You must have ensured that the FC logical interface is available on all nodes.

What happens when you execute the FLI Setup and Import workflow

The FLI Setup and Import workflow enables you to organize source LUNs (third-party LUNs) and destination LUNs (NetApp LUNs) for migration. The workflow enables you to create LUNs and take them offline, bring them online, map the LUNs to the igroup, set up LUN import, and verify that LUN import is complete.

The following illustration displays the tasks involved in executing the workflow:


The image displays the tasks performed in the Preparing LUN Migration Job workflow.

Executing the FLI Setup and Import workflow

The FLI Setup and Import workflow enables you to set up the LUN import and verify the LUN import to a cluster. You can also select the required foreign disks, create a LUN and take it offline, map the newly created LUN to an existing igroup, set up LUN import, and verify that the LUN is imported.

Before you begin

  • Based on the operating system selected for Unified Manager 6.3 and 6.4, you must have downloaded and placed the data-collector_lun_import_ext.conf configuration file in the following location:
    • Windows user: C:\Program Files\NetApp\ocum\etc\data-collector
    • Linux user(with root login): /opt/netapp/ocum/etc/data-collector/
    • N.B.: Data collector functionality is not supported when Unified Manager (version: 6.3, 6.4) is hosted as a Virtual Appliance (vApp)

    You can access the configuration file from here.

  • From 7.0 Unified Manager onwards, Data collector functionality will be supported for Windows, Linux, and vApp workflows. Unified Manager DataCollector file manager workflow places the DataCollector configuration files in the appropriate operating system folders for OnCommand Unified Manager.
  • You must have downloaded the workflow pack from the Storage Automation Store.
  • You must have reviewed the prerequisites for executing the workflow.
  • About this task

    You should have the following input parameters available for executing the workflow:

    • Cluster name
    • Node name
    • Foreign disks
    • Storage Virtual Machine (SVM) name
    • Volume name
    • LUN prefix name
    • OS type
    • igroup name
    • Maximum throughput limit

    Steps

    1. Log in to WFA by providing the necessary credentials.
    2. Click Portal > Migration > FLI Setup and Import.
      Tip: You can use the filter () to locate the workflow.
    3. Click the Execute icon ().
      The Execute Workflow 'FLI Setup and Import' dialog box is displayed.
    4. Select the cluster.
    5. Select the node.
    6. Select the required foreign disks.
    7. Provide LUN details such as the SVM name, volume name, LUN prefix, operating system type, and the igroup name.
    8. Optional: Provide the maximum throughput limit.
    9. Specify whether you want to start the LUN import and whether you want to verify the LUN imports.
      Note: LUN import can be done either using Online FLI or Offline FLI.
    10. Optional: Click Preview to validate your workflow before executing it.
    11. Click Execute.
      You can also schedule the workflow for execution at a later date and time by selecting the Choose Date and Time for Execution check box.