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

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Installation and Deployment

Installation and Deployment

This section describes how to deploy and install application servers, a heterogeneous storage system, and a local storage system when the online takeover function is configured.

Network Planning

The network between a local storage system and a heterogeneous storage system can be a standard direct-connection network or a standard switch-connection network. Select an appropriate network based on onsite requirements. Table 3-3 lists the possible networking diagrams between a local storage system and a heterogeneous storage system.
Table 3-3  Networking diagrams between a local storage system and a heterogeneous storage system

Network Type

Local Storage System Type

Networking Principle

Networking Diagram

Standard direct-connection network

Dual-controller device

A crossed networking mode is adopted to ensure link redundancy, that is, each controller in the local storage system is connected to that in the heterogeneous storage system through one link.



Multi-controller device

The host ports of the local storage system that are used to connect to the heterogeneous storage system reside on the same engine.



Standard switch-connection network

Dual-controller device

  • A crossed networking mode is adopted to ensure link redundancy, that is, each controller in the local storage system is connected to that in the heterogeneous storage system through two links.
  • If Fibre Channel switches are deployed on the network, ensure that the local storage system's host ports used to connect to the heterogeneous storage system and the host ports used to connect to application servers reside in different zones.



Multi-controller device (local storage system)
NOTE:

Not applicable to OceanStor 2200 V3.

The host ports used to connect to switches reside on the same engine of the local storage system.



Multi-controller device (local storage system and heterogeneous storage system)
NOTE:

Not applicable to OceanStor 2200 V3.

All controllers of an engine on the local storage system are connected to each controller of the heterogeneous storage system.



NOTE:
  • If the local storage system is connected to multiple heterogeneous storage systems, you are advised to connect the heterogeneous storage systems to different engines of the local storage system.
  • The total specification for paths of the external LUNs is limited (Total specification = Maximum path number supported by each external LUN x Number of external LUNs supported by a storage system). If an external LUN connects to more paths than the maximum number of paths supported by each external LUN, the access of other external LUNs will be affected.
  • When a standard switch-connection network is adopted, use different ports on the local storage system to connect the third-party storage system and application server.

Deployment and Installation

Figure 3-2 shows the deployment and installation process of application servers, a heterogeneous storage system, and a local storage system when the online takeover function is configured.
Figure 3-2  Deployment and installation process

NOTE:
Comply with the following rules when deploying and installing the application servers, heterogeneous storage system, and local storage system:
  • The method used to connect the local storage system to application servers must be the same as that used to connect the heterogeneous storage system to application servers. For example, if the heterogeneous storage system is connected to application servers through Fibre Channel links, the local storage system must be connected to application servers through Fibre Channel links.
  • Application servers must use the HBAs from the same vendor and with the same model and driver version to connect to the heterogeneous storage system and local storage system.
Table 3-4 describes the deployment and installation process.
Table 3-4  Description of the deployment and installation process

Procedure

Description

1. Check the initial status.

The application servers are connected to the heterogeneous storage system and the heterogeneous storage system carries service data.

2. Connect the local storage system to the heterogeneous storage system and application servers.

Connect the local storage system to the heterogeneous storage system and application servers.
NOTE:
  • For details about how to connect the local storage system to the heterogeneous storage system, see Table 3-3.
  • If optical fibers are used to connect a local storage device to a remote storage device, the local storage device automatically identifies the remote links. After the remote storage device is disconnected from the local storage device, the remote links disappear.
    NOTE:

    After mapping external LUNs to the local storage system as instructed based on chapter Configuring a Heterogeneous Storage System, implement full automatic scanning for LUNs. Then, the remote device that corresponds to the heterogeneous storage system can be discovered in OceanStor DeviceManager of the local storage system.

  • If network cables are used to connect the local storage device to the remote storage device, perform the operations in Adding a Remote Device so that the local storage device can identify the remote links.

3. Host LUNs.

4. (Optional) Remove the heterogeneous storage system from the service system.

After external LUNs are taken over successfully, use SmartMigration to migrate data on the heterogeneous storage system to the local storage system. Then the local storage system carries service data.

NOTE:

OceanStor 2200 V3&2600 V3 Storage System V300R005 SmartMigration Feature Guide shows the configurations of SmartMigration.

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Updated: 2018-12-29

Document ID: EDOC1000106155

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