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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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Impact and Restrictions

Impact and Restrictions

This section describes the restrictions on using HyperVault.

Restrictions on the Versions of the Source and Backup Storage Systems

The following table lists the restrictions on the versions of the source and backup storage systems of which file systems are used to create HyperVault tasks.

Table 1-2 Restrictions on the versions of the primary and secondary storage systems

Version of the Source Storage System

Version of the Backup Storage System

HyperVault Task Creation Supported or Not

Earlier than V300R006C00SPC100 (of which file systems are used to create HyperVault tasks)

V300R006C00SPC100 and later versions (of which file systems are used to create HyperVault tasks)

  • If shares of newly added coded sets are not created on the backup storage system, HyperVault tasks can be created.
  • If shares of newly added coded sets are created on the backup storage system, HyperVault tasks cannot be created.

V300R006C00SPC100 and later versions (of which file systems are used to create HyperVault tasks)

Earlier than V300R006C00SPC100 (of which file systems are used to create HyperVault tasks)

No. You are advised to upgrade the backup storage system to V300R006C00SPC100 or later.

V300R006C00SPC100 and later versions (of which file systems are used to create HyperVault tasks)

V300R006C00SPC100 and later versions (of which file systems are used to create HyperVault tasks)

Yes

Note: The new coded sets include ZH, GBK, EUC-TW, BIG5, DE, PT, ES, FR, IT, and KO.

Before creating a HyperVault pair, ensure that the Alternate Data Streams (ADS) status of the primary file system is the same as that of the secondary file system. Otherwise, the HyperVault pair fails to be created.
  • For V300R006C20 and earlier versions, the ADS function is disabled by default and cannot be changed. If a HyperVault pair is created using a file system created in V300R006C20 or an earlier version and a file system created in V300R006C30 or a later version, the ADS function must be disabled during file system creation in the new version to ensure that the ADS status of the primary file system is the same as that of the secondary file system.
  • For V300R006C30 and later versions, the ADS function is enabled by default. When creating a file system, you can set the ADS status in the advanced properties. Once the function is enabled, the ADS status cannot be set again. If the ADS function is disabled and no file systems are added to a HyperVault pair, the ADS function can be enabled again.

When you create a HyperVault pair, the primary and secondary file systems must have the same long file name settings. Otherwise, the pair cannot be created.

  • The long file name function is available only in V300R006C50 and later versions.
  • The long file name function is enabled by default and is valid only for individual file systems. Once it is enabled, you cannot disable it.
    NOTE:

    If you upgrade a storage system from an earlier version to V300R006C50 or later, the long file name function for existing file systems is disabled by default.

  • You can only change the long file name settings using the create file_system general or change file_system general command. The long_filename_enabled parameter in the command controls whether to enable this function. For more details about the command, see the command reference corresponding to your product model.
    NOTE:

    You cannot modify the long file name settings for file systems that are already in a HyperVault pair.

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Updated: 2019-07-12

Document ID: EDOC1000138860

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