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FlexCache write-back prerequisites

Contributors netapp-dbagwell
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Before you deploy FlexCache in write-back mode, ensure you have met these software, licensing, and system configuration requirements.

ONTAP version

  • The origin must be running ONTAP 9.15.1 or later.

  • Any caching cluster that needs to operate in write-back mode must be running ONTAP 9.15.1 or later.

  • Any caching cluster that does not need to operate in write-back mode can run any supported ONTAP version.

Licensing

FlexCache, including the write-back mode of operation, is included with your ONTAP purchase. No extra license is required.

Peering

  • The origin and cache clusters must be cluster peered

  • The server virtual machines (SVMs) on the origin and cache cluster must be vserver peered with the FlexCache option.

Note You do not need to peer a cache cluster to another cache cluster. There is also no need to peer a cache SVM to another cache SVM.