Recommended Configurations for 6.x Series Storage Systems for Taking Over Data from Other Huawei Storage Systems When the Host Uses the OS Native Multipathing Software

OceanStor Dorado 6.x and OceanStor 6.x Host Connectivity Guide for Windows

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When data is migrated from other Huawei storage systems (including Dorado V3, OceanStor V3, and OceanStor V5) to 6.x series storage systems, the old storage system and 6.x series storage systems will connect to the host concurrently. You must select a proper migration and configuration method based on the configurations of the old storage and host to ensure proper running. The following provides recommended configurations.

1. Configuration method for 6.x series storage systems working in load balancing mode
Host OS	Current Configuration on the Customer's Live Network			Configuration Before Migration (Both the Old Storage and 6.x Storage Exist)			Configuration After Migration (Old Storage Offline)
Host OS	Old Storage Scenario	Old Storage Configuration	Current Host Configuration	Old Storage Configuration	6.x Storage Configuration	Host Configuration	6.x Storage Configuration	Host Configuration
Windows	Non-HyperMetro	ALUA	ALUA	Unchanged	Use the default host access mode, that is, load balancing.	Unchanged	Unchanged	Unchanged
	Non-HyperMetro	ALUA not used	AA	Unchanged	Use the default host access mode, that is, load balancing.	Unchanged	Unchanged	Unchanged
	HyperMetro	ALUA	ALUA	Unchanged	Use the default host access mode, that is, load balancing.	Unchanged	Unchanged	Unchanged
Note 1: If LUNs have been mapped to the host, you must restart the host for the configuration to take effect after changing the initiator mode or host access mode on the storage systems.
2. Configuration method for 6.x series storage systems working in asymmetric mode
Host OS	Current Configuration on the Customer's Live Network			Configuration Before Migration (Both the Old Storage and 6.x Storage Exist)			Configuration After Migration (Old Storage Offline)
Host OS	Old Storage Scenario	Old Storage Configuration	Current Host Configuration	Old Storage Configuration	6.x Storage Configuration	Host Configuration	6.x Storage Configuration	Host Configuration
Windows	Non-HyperMetro	ALUA	ALUA	Unchanged	Set the host access mode to asymmetric.	Unchanged	Unchanged	Unchanged
	Non-HyperMetro	ALUA not used	AA	Unchanged	Set the host access mode to asymmetric.	Unchanged	Unchanged	Unchanged
	HyperMetro	ALUA	ALUA	Unchanged	Set the host access mode to asymmetric.	Unchanged	Unchanged	Unchanged
Note 1: If LUNs have been mapped to the host, you must restart the host for the configuration to take effect after changing the initiator mode or host access mode on the storage systems.

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Updated: 2023-08-17

Document ID: EDOC1100116985

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