Data corruption may occur if you perform a rolling upgrade of InfoScale Storage or InfoScale Enterprise from 7.3.1 or earlier to 7.4 or later during replication (3951527)

Last published : Sep 11, 2026
A rolling upgrade to InfoScale 7.4 or later is not supported in a Volume Replicator (VVR) environment. With InfoScale 7.3.1 or earlier, you could pause replication, perform a rolling upgrade, and then safely resume replication. However, to upgrade to 7.4 or later, you must first stop any ongoing replication, perform a full upgrade of the product and the disk groups on both the sites, and then start replication.
Workaround:
To upgrade to InfoScale 7.4 or later in a VVR environment
  1. Stop replication.
  2. Perform a full upgrade on the primary and the secondary sites to the same InfoScale version.
  3. Upgrade the disk groups on both the sites.
  4. Start replication.
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