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OceanStor 2200 V3 and 2600 V3 Storage System V300R005 SmartVirtualization Feature Guide 07

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Requirement Analysis

Requirement Analysis

Before implementing data migration, analyze service requirements, make a service-related plan, and determine an implementation solution, so that data migration can be implemented as smoothly as possible.

Requirement Source

  • Service introduction

    An enterprise has three storage systems: Huawei OceanStor 2600 V3, HDS USP-V storage system, and S5600T V100R005 storage system. The OceanStor 2600 V3 storage system is newly purchased and no service is running on it. In addition, the assets information management system and archive backup system are running on two storage systems respectively.
    • The asset management information system, which is served by an Oracle database, records the enterprise's asset information.
    • The archive&backup system archives service data that is infrequently accessed.
    Table 6-1 lists the hardware components of the asset management information system and the archive&backup system.
    Table 6-1  Hardware components of service systems

    System Name

    Hardware Component

    Asset management information system

    • AIX-based application server
    • HDS USP-V storage system

    Archive&backup system

    • AIX-based application servera
    • S5600T storage system V100R005b

    a: The asset management information system and the archive&backup system run on the same AIX-based application server.

    b: The S5600T only runs basic storage services. No value-added services are in use.

    Figure 6-1 shows the network where the two service systems are deployed.
    Figure 6-1  Existing network

    Table 6-2 lists the zones created to ensure normal communication between the AIX-based application server and each storage system.
    Table 6-2  Network zoning

    Zone Name

    Included Node


    The AIX-based application server and the HDS USP-V


    The AIX-based application server and the S5600T

    Table 6-3 lists the LUN configuration of the HDS UPS-V.
    Table 6-3  LUN configuration of the HDS UPS-V

    LUN Name

    LUN Capacity



    340 GB

    Stores Oracle Cluster Registry (OCR) files of the Oracle database.


    1.9 TB

    Stores data files of the Oracle database.

  • Service requirements

    As the enterprise keeps growing, an ever-increasing amount of asset management information needs to be recorded. The HDS USP-V has been used for a long time. Its lifecycle is about to end, and its storage space is about to be used up. The customer wants to migrate the asset management information system to the S5600T. The asset management information system stores non-critical data. Therefore, the S5600T can meet the performance requirement, and existing storage resources can be reused.

    Specific customer requirements are as follows:
    • Data be migrated to the S5600T non-disruptively.
    • Data be migrated during off-peak hours at night.
    • After data is migrated, the S5600T can take over the asset management information system from the HDS USP-V.

Requirement Analysis and Conclusions

It can be inferred from the customer requirements that an inter-storage-system data migration solution suits the customer. The following value-added features provided by Huawei storage systems can be used for data migration: remote replication, LUN copy, and SmartMigration. Table 6-4 describes the data copy characteristics and typical application scenarios of these features.
Table 6-4  Feature selection analysis


Remote Replication

LUN Copy


Storage system support

Between storage systems

Within a storage system and between storage systems

Within a storage system and between storage systems

Typical application scenarios

Data backup and disaster recovery

Data backup and migration

Data migration

Impact of data migration on system services


Services must be stopped during the data migration.

Online data migration is implemented without affecting services.

  • Conclusion 1: The customer needs to migrate data between storage systems. It can be concluded from the preceding table that LUN copy and SmartMigration can address the need. However, the license file in the S5600T used by the customer does not grant permission to use value-added features. Therefore, the customer cannot use LUN copy or SmartMigration to migrate data from the HDS USP-V to the S5600T.
  • Conclusion 2: The customer wants online data migration. Therefore, SmartMigration can address the need.
  • Conclusion 3: The customer requires data to be migrated during off-peak hours. Therefore, the migration speed can be set to High for higher data migration efficiency.

The S5600T does not contain a SmartMigration license. Therefore, the customer cannot use SmartMigration to migrate data from the HDS USP-V to the S5600T.

The OceanStor 2600 V3 storage system purchased by the customer supports SmartVirtualization and SmartMigration. Therefore, data can be migrated using the following method:
  1. Use the OceanStor 2600 V3 to host LUNs created on the HDS USP-V and the S5600T, and create eDevLUNs corresponding to these LUNs.
  2. On the OceanStor 2600 V3, configure SmartMigration for eDevLUNs to migrate data.

The OceanStor 2600 V3 is used to describe configuration planning and operations. For the OceanStor 2200 V3 storage system, the configuration planning and operations are the same.

Updated: 2018-12-29

Document ID: EDOC1000106155

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