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HyperVault Feature Guide

OceanStor V3 Series V300R006

This document is applicable to OceanStor 2200 V3, 2600 V3, 5300 V3, 5500 V3, 5600 V3, 5800 V3, 6800 V3, 18500 V3, and 18800 V3. It describes the implementation principles and application scenarios of the HyperVault feature, and explains how to configure and manage HyperVault.
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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).
Application Scenarios

Application Scenarios

HyperVault applies to data backup, data recovery, and other scenarios.

Data Backup

HyperVault is used to back up data between OceanStor storage systems, ensuring security and recoverability of user data. Figure 1-6 shows how HyperVault is used to back up data.

Figure 1-6 Data backup using HyperVault

HyperVault provides two data backup modes: local backup and remote backup. In local backup mode, a backup policy that backs up data intensively can be configured to achieve quick backup. In addition, local backup is applicable if the connection between the production center and the backup center is down. In remote backup mode, a backup policy that backs up data less intensively can be configured. One full backup and permanent incremental backups improve security and reliability of data.

Data Recovery

If data in a source file system is damaged, HyperVault enables you to obtain the snapshot generated at a specific point in time before the fault occurs from the source or backup storage system to recover the damaged data and minimize the loss. Figure 1-7 shows how HyperVault is used to recover data.

Figure 1-7 Data recovery using HyperVault

HyperVault provides two data recovery modes: local recovery and remote recovery. In local recovery mode, a local snapshot is used to quickly recover data. The remote recovery mode is used when local snapshots are not applicable. In remote recovery mode, all the available snapshots are copied from the backup storage system to the local storage system to recover data.

3DC (Applicable to V300R006C10)

3DC is a disaster recovery solution in which two local data centers and a remote disaster recovery data center are deployed. In the 3DC disaster recovery solution, Huawei combines HyperMetro and HyperVault. The three data centers are described as follows:

  • Production center A

    In the data center, all services are running.

  • Local disaster recovery center B

    The data center resides in the same city as the production center A or in a neighboring city. The data center has a service processing capability similar to that of the production center. Data is synchronized from the production center A to data center B through high-speed links. If a disaster occurs in the production center A, data center B can take over services from the production center A with little or zero data loss.

  • Remote disaster recovery center C

    The data center is a secondary disaster recovery center in a different city. If both the production center A and local disaster recovery center B fail concurrently due to a natural disaster, the remote disaster recovery center C can take over services and use backup data to recover services.

The three data centers can be connected in cascaded or parallel mode based on the networking modes of storage systems in them.

  • Cascaded 3DC

    The production center A, local disaster recovery center B, and remote disaster recovery center C are cascaded in A-B-C mode.

  • Parallel 3DC

    The local disaster recovery center B and remote disaster recovery center C concurrently serve as the disaster recovery sites of the production center A. The three data centers are interconnected in A-B and A-C mode.

Cascaded 3DC Network

Figure 1-8 shows a cascaded 3DC network.

Figure 1-8 Cascaded 3DC network with HyperMetro (for file systems) and HyperVault

On the cascaded 3DC network, data links must be established between the production center A and local disaster recovery center B as well as between the local disaster recovery center B and remote disaster recovery center C. Local disaster recovery is implemented between the production center A and local disaster recovery center B using HyperMetro. The primary file system of HyperVault serves as the secondary file system of HyperMetro, making remote disaster recovery of file systems in the production center A available. Local backup of HyperVault can be implemented on the primary file system of HyperVault.

Parallel 3DC Network

Figure 1-9 shows a parallel 3DC network.

Figure 1-9 Parallel 3DC network with HyperMetro (for file systems) and HyperVault

On the parallel 3DC network, data links must be established between the production center A and local disaster recovery center B as well as between the production center A and remote disaster recovery center C. HyperMetro (for file systems) is configured between the production center A and local disaster recovery center B to achieve local disaster recovery of data. The primary file systems of HyperMetro are used as the primary file systems of HyperVault that is configured between the production center A and remote disaster recovery center C to achieve remote disaster recovery of data. Local backup of HyperVault can also be implemented in the production center A.

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Updated: 2019-07-12

Document ID: EDOC1000138860

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