Relocatable Virtual Port for SAN Migration
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Solution Overview
Problem
The migration of virtual servers in storage area networks (SANs) is time-consuming and error-prone due to the need for reassigning virtual-port assignments, which can compromise security and require extensive reconfiguration of LUNs and SAN management utilities.
Innovation Solution
The implementation of relocatable virtual ports, which are registered and managed through a registry, allowing seamless migration between physical ports on different servers without changing the virtual server's configuration or LUN mappings, ensuring exclusive access and minimizing conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If virtual-port assignment is reassigned during virtual server migration, then the virtual server can access LUNs on the new host platform, but the migration process becomes time-consuming and error-prone
Solution Approach 1:
The system pre-assigns relocatable virtual port names to LUNs before migration occurs. When a virtual server migrates to a new host platform, these pre-assigned relocatable virtual port names are automatically recognized and bound to the appropriate physical ports, eliminating the need for time-consuming reconfiguration during migration.
Solution Approach 2:
Relocatable virtual port names serve as an intermediary layer between virtual servers and physical HBA ports. This intermediary abstraction allows virtual servers to migrate between hosts without direct reconfiguration, as the relocatable virtual port names automatically resolve to the correct physical ports on the new platform.
2Adaptability or versatility
If virtual-port assignment is reassigned during virtual server migration, then the virtual server can access LUNs on the new host platform, but errors increase due to reconfiguration requirements
Solution Approach 1:
The system pre-assigns relocatable virtual port names to LUNs before migration occurs. When a virtual server migrates to a new host platform, these pre-assigned relocatable virtual port names are automatically recognized and bound to the appropriate physical ports, eliminating the need for time-consuming reconfiguration during migration.
Solution Approach 2:
The relocatable virtual port system enables self-service migration where the port naming and binding automatically adjusts to the new host platform without requiring manual intervention. The system self-configures the port mappings based on the relocatable virtual port names, reducing human error potential.
3Adaptability or versatility
If LUNs are configured to be accessible from different physical ports for migration, then migration is enabled, but security is compromised
Solution Approach 1:
The system implements LUN masking at the level of relocatable virtual port names, ensuring that each LUN remains accessible only to authorized virtual servers regardless of which physical host it migrates to. This localized security control maintains security boundaries while enabling migration.
Solution Approach 2:
Relocatable virtual port names serve as an intermediary layer between virtual servers and physical HBA ports. This intermediary abstraction allows virtual servers to migrate between hosts without direct reconfiguration, as the relocatable virtual port names automatically resolve to the correct physical ports on the new platform.
4Object-affected harmful factors
If virtual-port reassignment is performed manually, then security can be maintained, but the process becomes more complex and error-prone
Solution Approach 1:
The relocatable virtual port system enables self-service migration where the port naming and binding automatically adjusts to the new host platform without requiring manual intervention. The system self-configures the port mappings based on the relocatable virtual port names, reducing human error potential.
Solution Approach 2:
The system pre-assigns relocatable virtual port names to LUNs before migration occurs. When a virtual server migrates to a new host platform, these pre-assigned relocatable virtual port names are automatically recognized and bound to the appropriate physical ports, eliminating the need for time-consuming reconfiguration during migration.
Data Source
AI summary
The present invention provides for relocatable virtual ports for accessing external storage.