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 09, 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.
Related information
Replication known issues