IBM Storage Virtualize announced a new version of the product (9.1.1) with support for FlashSystem grid partition migration with iSCSI hosts.
This blog illustrates the process of FlashSystem grid Partition Migration in environments that use both Fibre Channel (FC) and iSCSI hosts. It highlights the similarities and differences in how host paths are managed during migration, ensuring non-disruptive data access.
Migration with iSCSI Hosts
Migration with FC and iSCSI Hosts
Prerequisites and Limitations for FlashSystem grid Partition Migration
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Aspect
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Details
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Supported Protocols
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Fibre Channel (FC) and iSCSI
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FlashSystem grid Requirement
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Source and target systems must be in the same FlashSystem grid with active partnerships or in active zoning/in candidate for partnership creation
(as it will get created as part of migration)
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Connectivity
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FC zoning for SAN; IP connectivity for iSCSI
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Host Configuration
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Multipath software installed and configured on all hosts
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Snapshot Handling
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Snapshot policies can be preserved or recreated on target system
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Host Path Updates
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Automatic for ESXi and multipath-enabled hosts; manual rescan may be needed
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Downtime
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Non-disruptive (I/O continues during migration)
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Limitations
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Requires compatible firmware versions; some OS may need manual intervention
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For more details on storage partition migration, see the product documentation page at: Migrating storage partitions between systems