ZStack Cloud 5.3.0>Tutorials>Private Cloud>Platform Upgrade Tutorial>Considerations

Considerations

When you upgrade ZStack Cloud, note that:

During the upgrading, the management nodes are inaccessible and you cannot apply VM and volume resources. Therefore, we recommend that you upgrade the cloud platform during business troughs to avoid resource application and business change needs.
After the management node upgrading is completed, all hosts, primary storage, image storage, VPC vRouters are reconnected and related resources are auto-upgraded. During the connection, you cannot perform operations on VM instances and volumes.
If an error occurs during the upgrading and interrupts the upgrading, you can troubleshoot the error. After the error is solved, you can upgrade the cloud platform again. If you have any question or need a help, contact the official technical support.

Table 1. Key Feature Upgrade Information
Version	Upgrade Information	Details
ZStack Cloud 5.1.0	Removes the UI button Set VM RDP Mode.	Starting from 5.1.0, it is not supported to set the VM RDP mode on the UI. To enable the RDP mode for a VM instance, run the CLI command `SetVmRDP uuid=${vmuuid} enable=true`
ZStack Cloud 4.7.21	Renames Entertainment Management as Tenant Management.	Starting from 4.7.21, the feature module Entertainment Management is renamed as Tenant Management. This does not affect the functions of this module.
ZStack Cloud 4.6.0	Upgrades Affinity Group to VM Scheduling Policy.	Starting from 4.6.0, the feature Affinity Group is upgraded to VM Scheduling Policy: The VM Scheduling Policy feature provides four types of policies: VM Exclusive from Each Other, VM Affinitive to Each Other, VMs Affinitive to Hosts, and VMs Exclusive from Hosts. Each policy has two execution mechanisms: Hard and Soft. Anti-Affinity Group (Hard) and Anti-Affinity Group (Soft) policies provided in earlier versions are upgraded to VM Affinitive to Each Other (Hard) and VM Affinitive to Each Other (Soft) respectively, without any modification to the underlying working principles. This upgrade has no impact on your existing application workloads and is annoyance-free.
ZStack Cloud 4.0.0	Upgrades vRouter to VPC vRouter.	Starting from 4.0.0, vRouter is upgraded to VPC vRouter and vRouter network is upgraded to VPC network. vRouter is no longer available on the UI. The seamless upgrade does not affect your business continuity.
	Replaces User Group and User by the account system in Entertainment Management.	Starting from 4.0.0, User Group and User are replaced by the system account in Entertainment Management Account System. User Group and User are no longer available on the UI. You cannot login to the Cloud by using a user or user group account. Before you implement upgrading, migrate the user and user group account data to Entertainment Management. Note: User accounts created by the admin and have the admin permissions are also can celled. Platform admins in Entertainment Management have the equivalent permissions. You can use Entertainment Management to create platform managers based on your business needs.
	Adjusts the integration of AD/LDAP and accounts.	Starting from 4.0.0, the integration of AD/LDAP and accounts is managed by Entertainment Management. Before you implement upgrading, migrate the AD/LDAP account data managed by the original account system to Entertainment Management.

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