Requirement Analysis

Requirement Source

• Service introduction

  An enterprise has three storage systems: Huawei OceanStor Dorado 6000 V6, HDS USP-V storage system, and S5600T V100R005 storage system. The OceanStor Dorado 6000 V6 storage system is newly purchased and no service is running on it. In addition, the assets management information system and archive&backup system are running on the 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 4-1 lists the hardware components of the asset management information system and the archive&backup system.

    Table 4-1 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 4-1 shows the network where the two service systems are deployed.

    Figure 4-1 Existing network
    

    Table 4-2 lists the zones created to ensure normal communication between the AIX-based application server and each storage system.

    Table 4-2 Network zoning

    Zone Name	Included Node
    Zone1	The AIX-based application server and the HDS USP-V
    Zone2	The AIX-based application server and the S5600T

    Table 4-3 lists the LUN configuration of the HDS UPS-V.

    Table 4-3 LUN configuration of the HDS UPS-V

    LUN Name	LUN Capacity	Function
    LUN_HDS1	340 GB	Stores Oracle Cluster Registry (OCR) files of the Oracle database.
    LUN_HDS2	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 should be migrated to the S5600T non-disruptively.
  • Data should 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: HyperReplication and SmartMigration. Table 4-4 describes the data copy characteristics and typical application scenarios of these features.

• Conclusion 1: The customer needs to migrate data between storage systems. It can be concluded from the preceding table that 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 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 Dorado 6000 V6 storage system purchased by the customer supports SmartVirtualization and SmartMigration. Therefore, data can be migrated using the following method:

1. Use the OceanStor Dorado 6000 V6 to take over LUNs created on the HDS USP-V and the S5600T, and create eDevLUNs corresponding to these LUNs.
2. On the OceanStor Dorado 6000 V6, configure SmartMigration for eDevLUNs to migrate data.