Upgrade the standby node for a cluster with active and standby nodes before upgrading the active node. You can upgrade the cluster mode directly.
In the active-standby disaster recovery scenario, before upgrading the platform, disable disaster recovery policies, and enable them after the upgrade is complete.
Before upgrading SCP6.7.0_EN or an earlier version to SCP6.9.1_EN, please check and ensure there are four SCP VMs disks and the capacity of disk 4 is at least 400 GB.
Before upgrading versions earlier than SCP6.3.0_R1, please enable the UUIDgenerator for SCP VMs on the HCI cluster where SCP resides to ensure that the security optimization feature takes effect.