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 Replication Betweem two hyperswap clusters

Yakup HELVACI's profile image
Yakup HELVACI posted Sun November 23, 2025 03:16 PM

Hello,

We have 2 7300's with configured with hyperswap topology and two 7200's are configured with hyperswap. Request is took a snapshot from a volume in 7300 then put this in to a volume in to 7200 as immutable copy. Is this scenario is possible? Even if we don't consider this scenario, is the replication is possible?

PBHA may be a solution but we are using Block Storage CSI driver and it seems its only supported with hyperswap so we are stuck with this. I cant find any info for configuration of Block CSI driver with PBHA.

Nezih Boyacioglu's profile image
Nezih Boyacioglu IBM Champion posted Wed November 26, 2025 01:57 AM

Hi Yakup,

HyperSwap topology is only HA solution for CSI configuration. And when you are using Hyperswap volume cloning and creating a volume from a snapshot is not supported. check the limitations at IBM Docs.

I recommend reading the IBM Redbooks publication "A Practical Guide to IBM Storage FlashSystem and Red Hat OpenShift Integration: Red Hat OpenShift Container Platform Virtualization Use Case" at https://www.redbooks.ibm.com/abstracts/redp5753.html

chapter 1.6.4 Reference Architecture has, single site HA, two site HA and two site data resiliency designs. 

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