NVMe Write Consistency in Synchronous Replication

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Docketook98
Posts: 1
Joined: Mon Mar 30, 2026 8:00 am

Mon Mar 30, 2026 8:05 am

How does StarWind handle write-order consistency and cache coherency when using NVMe-backed storage with high IOPS under synchronous replication across nodes?
yaroslav (staff)
Staff
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Joined: Mon Nov 18, 2019 11:11 am

Mon Mar 30, 2026 12:35 pm

The "master" or "primary" node handles i/o. The i/o is being replicated to the "listener".
I am not sure that you can create a HA device with the cache. VSAN considers data "written" once it hits the underlying storage. If the underlying storage array is cache-backed, software does not take it into account; data integrity then is more on the hardware side.
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