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OceanStor BCManager 6.5.0 eReplication User Guide 02

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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).
LUN

LUN

This section introduces the DR restrictions for LUN protected objects.

You must comply with version restrictions when implementing DR for a protected object supported by eReplication. Read description in Table 1-18 before implementing DR for a LUN.
Table 1-18  DR Restrictions for LUNs

Object

Restriction

Compatibility

In the DR Star network scenario, when you create an LUN protected group, only the storage with DR Star is supported (V3 series V500R007C20 and later versions, Dorado series V300R002C00 and later versions).

For details about LUN compatibility, see the .OceanStor BCManager 6.5.0 eReplication Compatibility List.

DR protection

The number of LUNs in the protected group cannot exceed that of LUNs mapped from disk arrays to hosts.

Recovery operations

  • In the geo-redundant DR solution based on cascading replication (synchronous and asynchronous) or parallel replication (synchronous and asynchronous), when services are switched over to the remote DR site, reprotection cannot be implemented.
  • In the geo-redundant DR solution based on cascading replication (asynchronous and asynchronous), when services are switched over to the remote DR site, reprotection cannot be implemented.
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Updated: 2019-05-21

Document ID: EDOC1100075861

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