Major version upgrades on R81.10 Management Servers do not support the installation of a firmware package on Quantum Spark Appliances that are part of a cluster.
Follow the step below to upgrade an R80.20 cluster of Quantum Spark Appliances:
In the cluster object in SmartConsole, change the Version field from R80.20 to R81.10.
Install policy on the cluster object. When installing, uncheck the "For gateway clusters, if installation on a cluster member fails, do not install on that cluster." checkbox. The result should be success with a “Pending” installation:
In the WebUI, upgrade the Standby member. When it boots, it should fetch the R81.10 policy.
Upgrade the Active member in the same way.
This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.