Improved Windows Runtime Stability

ZStack Cloud 5.5.30 optimizes Windows nested virtualization and lets you enable or disable it globally or for an individual VM instance. Nested virtualization is disabled by default to improve the compatibility and runtime stability of newer workloads such as Windows Server 2025 and reduce risks such as blue screens. You can enable it as needed.

Management Network Supports IPv6

Starting with ZStack Cloud 5.5.30, you can assign IPv6 addresses to the Management Network and deploy and operate the platform in IPv6 environments, meeting evolving network requirements.

Optimized ZBS Volume Read/Write Performance

Starting with ZStack Cloud 5.5.30, you can configure volume multi-queue globally or at the cluster, VM instance, or volume level. You can also enable a dedicated I/O thread for an individual volume on ZBS Primary Storage as needed. These enhancements optimize the volume I/O path and performance and improve storage access efficiency in I/O-intensive scenarios.

Supports More Storage Combinations in a Single Cluster

Starting with ZStack Cloud 5.5.30, a single cluster can attach either Ceph, SharedBlock, and ZBS (CBD protocol) Primary Storage or Ceph and Vhost (XINFINI) Primary Storage, providing greater flexibility in resource planning and workload deployment.

Vhost (XINFINI) Supports VM Scheduling Policies

Starting with ZStack Cloud 5.5.30, you can configure VM scheduling policies for clusters attached to Vhost (XINFINI) Primary Storage, providing greater resource scheduling flexibility in Vhost (XINFINI) storage environments.

Supports Host-Local I/O Cache

Starting with ZStack Cloud 5.5.30, you can use host-local I/O cache. Host-local I/O cache uses high-performance local disks, such as SSDs or NVMe drives, on a host as cache media and organizes them into cache pools to accelerate volumes on ZBS (CBD protocol), Ceph, or Local Storage. Volume data remains persistently stored on the corresponding primary storage. This feature applies to workloads that are sensitive to I/O performance and access latency, such as databases and high-performance computing. Administrators can manage cache pool capacity, health, and lifecycle at the host level and enable local I/O cache for volumes as needed. This improves storage access efficiency for frequent reads and writes.

Supports Unified ZBS Primary Storage Access

Starting with ZStack Cloud 5.5.30, ZBS is integrated into the cloud platform as a unified Primary Storage type. The capabilities of the former CBD Primary Storage remain available under the CBD protocol of ZBS Primary Storage. ZBS Primary Storage also adds a Vhost protocol path. You can connect storage resources through the unified ZBS Primary Storage entry and select the storage protocol appropriate for your workload when creating a VM instance or volume.

Note: Currently, when you create a VM instance on ZBS Primary Storage over the Vhost protocol, only images whose BIOS mode is UEFI are supported.

This capability enables ZBS Primary Storage to support VM instance and volume scenarios over different I/O paths, providing more flexible performance and compatibility options in a unified storage resource pool. The platform also provides a connectivity view between ZBS Primary Storage and hosts, helping administrators inspect protocol link status and quickly locate storage access issues.

Dashboard Displays Resource Utilization Statistics

Starting with ZStack Cloud 5.5.30, the dashboard displays resource utilization statistics so that you can view the real-time usage of key resources at a glance. Currently, the dashboard supports VM memory utilization (internal monitoring) and VM memory utilization (external monitoring). To view internal monitoring data, install GuestTools on the VM instance first.

Optimized Resource Alarm Recovery Notifications

ZStack Cloud 5.5.30 optimizes the resource alarm recovery mechanism. You can set recovery conditions based on a duration and the percentage of normal monitoring points. The system collects monitoring data at fixed intervals and calculates the percentage of monitoring points that do not meet the alarm condition within the specified duration. When this percentage reaches the specified threshold, the resource is considered recovered from the alarm state. This mechanism reduces misleading results caused by metric fluctuations and improves the accuracy of recovery assessment.

You can also select Alarm Messages > Set Silence Period to suppress alarm and recovery notifications triggered by an individual resource for a specified period. This operation does not affect other resources monitored by the same alarm, improving O&M flexibility without creating monitoring blind spots.

Refined Resource Alarm Monitoring Granularity

Starting with ZStack Cloud 5.5.30, you can view the alarm trigger status of each resource monitored by an alarm on the alarm details page, providing a more granular view for monitoring and troubleshooting.

Alibaba Cloud Linux 4 ISO Supports GreatDB

Starting with ZStack Cloud 5.5.30, the x86 edition of Alibaba Cloud Linux 4 ISO supports GreatDB, and the ARM edition supports GreatDB and MySQL.

Supports Bulk Project Member Management

Starting with ZStack Cloud 5.5.30, you can add multiple project members and assign roles in a single operation. This reduces permission configuration costs in multi-user environments and improves permission management and team collaboration efficiency.

Deduplicates VM Console Tabs

Starting with ZStack Cloud 5.5.30, the platform identifies and deduplicates multiple console tabs for the same VM instance, ensuring that at most one console tab is displayed per VM instance for a clear and easy-to-use tab view.

Previous Versions

For more ZStack Cloud versions, see ZStack Cloud.

High-Performance Storage Pools Support Two Replicas and Replica Switching

You can create high-performance storage pools with two replicas and switch an existing healthy high-performance storage pool between two and three replicas. This allows you to choose the replica count based on service requirements for data reliability and storage utilization.

Compared with three replicas, two replicas reduce data redundancy overhead and improve storage utilization. Two-replica mode still requires at least three logical failure domains to ensure Raft consistency. One node acts as a witness that participates in voting but does not store a complete copy of the data.

Changing the replica count triggers data migration in the storage pool. During migration, the storage pool enters the Recovering state and returns to Healthy after migration is complete. Perform this operation outside of peak business hours.

Delete an Empty High-Performance Storage Cluster

You can delete a high-performance storage cluster that contains no servers. This helps clean up clusters that were not fully initialized or whose servers have all been removed, so that the high-performance storage environment can be replanned and reinitialized.

If servers remain in the cluster, the platform disables the delete action and prompts you to remove the servers first. Deleting a cluster removes its configuration information and cannot be undone. Before proceeding, confirm the risks and complete login password verification.

Read-Only Access When the License Is Abnormal or Expired

When the license status is abnormal or expired, you can still access the ZStack ZStone UI, browse feature pages, and view resource lists, resource details, and runtime status.

In read-only mode, the platform supports only query and browse operations. Operations that change platform configuration or resource status, such as creating, modifying, or deleting resources and handling alarms, are not available. This helps you continue checking cluster and storage resource status while the license is being restored, so that you can troubleshoot issues and restore authorization in time.

Previous Versions

For more ZStack ZStone versions, see ZStack ZStone.

Access Control Overview and Role Authorization

The Unified Portal adds access control overview and role authorization management, supporting centralized viewing of authorization relationships among users, user groups, projects, roles, and organizations. After signing in through the unified identity authentication entry, administrators can view permission distribution in Global Management > Access Control, maintain role bindings, and identify roles inherited from user groups, projects, or organizations. This helps clarify access boundaries in multi-product environments.

Unified Authentication Configuration Delivery

The Unified Portal enhances unified authentication configuration. Administrators can apply identity data and SSO configurations to connected components in Cloud Federation > SSO. For ZStack Cloud scenarios, the system can automatically populate parameters required for identity synchronization, reducing manual configuration mistakes.

Cloud Unified Identity Source Integration

ZStack Cloud 5.5.30 can identify identity data from the Unified Portal. Administrators can distinguish local identities from unified identity sources on the user management page in ZStack Cloud, and use the role permission relationships from the Unified Portal. This reduces duplicate maintenance and the risk of unintended changes to unified identity data.

Connect ZSphere Virtualization Platform

Adds ZSphere connection. Administrators can add a ZSphere virtualization platform and verify the connection in Cloud Federation > Platform Management, using the page entry in the Platform Access list or area. After connection, users can view ZSphere data on pages such as assets, monitoring, logs, dashboards, reports, and alarms, reducing context switching during cross-platform viewing and troubleshooting.

Connect ZNS Network Service

Adds ZNS connection. Administrators can enter the access address and integration account in Cloud Federation > Platform Access to verify the ZNS Network Service connection and enable asset collection as needed. After asset collection is enabled, ZCF can display basic network assets such as Transport Nodes, Edge Nodes, Edge Clusters, Segments, Tier-0 Gateways, and Tier-1 Gateways, providing a data foundation for network inventory and subsequent observability analysis.

Anheng Security Service Provisioning and Operations

Based on the existing Anheng Tianchi connection, adds Security Service provisioning and operations for Log Audit, Bastion, and Host Security EDR. Administrators can provision and manage the required security capabilities on the Security Service page in the cloud default region, adding audit, operations access, and host protection support for cloud hosts.

View ZCF Platform Health

Adds the ZCF Platform Health view to centralize platform key services, health domains, component details, and external dependencies. Administrators can view platform health, metrics, and alarm indicators in Monitoring Center > Platform Health, and track exceptions in Alarm Center to identify capacity and pipeline risks earlier.

Custom Dashboard Editor

Adds custom dashboard editing. Users can create, edit, and delete custom dashboards in Dashboards & Reports > Dashboards, add widgets from the view library, drag to adjust layouts, and clone, import, or export dashboard configurations. This helps users build reusable observation views by service, resource type, or team responsibility.

Analyze ZSphere Observability Data

After ZSphere is connected, users can analyze ZSphere assets, monitoring data, logs, and alarms in Operations, and correlate the data with other connected platforms to troubleshoot runtime exceptions with less cross-platform switching.

Analyze ZNS Basic Network Assets

After ZNS is connected and asset collection is enabled, users can view ZNS basic network assets in Operations, providing context for network inventory, monitoring analysis, and alarm troubleshooting.

Alarm Center

Adds the Alarm Center module for centralized management of alarm messages, alarm rules, and notification configurations. Users can view, handle, and configure multi-product alarms in Alarm Center, improving the efficiency of risk discovery, rule maintenance, and notification delivery.

Layer 4 Load Balancing

Adds Layer 4 load balancing for ZNS networks, providing a unified entry, traffic distribution, and health checks for TCP/UDP services. Administrators can configure Layer 4 load balancing for Tier-1 Gateways in ZNS Network Center. The system checks VIP and NAT address usage to reduce address conflicts and forwarding configuration risks.

NAT Rule Management

Adds NAT rule management for ZNS gateways, covering SNAT, DNAT, and Reflexive NAT. Administrators can maintain rules for north-south access, service publishing, and one-to-one address mapping in ZNS Network Center, and view rule status and recent operations.

Installation Progress Tracking and Failed-Step Retry

The Installer enhances installation progress display and failure handling. During installation, users can view the execution status of each stage. If installation fails, users can rerun installation from the interruption point based on the failure information, reducing the time spent repeating the full installation flow.

Upgrade Package Management and Visualized Upgrade

Adds the Lifecycle Management module, providing package management and visualized upgrade capabilities. Administrators can upload and manage ZCF Bundles and create upgrade plans. The system advances the upgrade process according to the plan, connecting package selection, risk checks, execution monitoring, and historical traceability. This helps administrators assess the impact before an upgrade, continuously track status during the upgrade, and quickly locate recovery context when exceptions occur.

Unified Multi-Component License Management

ZCF 1.1.2 supports unified license storage and allocation through the License Server, and centrally manages licenses for multiple components, such as ZStack Cloud, ZStack ZStone, ZCF Network Service, ZCF Unified Portal, and ZCF Observability.

Administrators can view license status, authorized capacity, validity periods, and license usage on the License Server Management page, and track license consumption of each component.

Known Issue Fixes

This release mainly fixes known issues and improves platform stability and user experience.

Previous Versions

For more ZStack Cloud versions, see ZStack Cloud.

License Server Configuration

When deploying ZCF by using the Installer or Application Market, you can enter the License Server access address and port. After deployment is complete, platform capability components such as ZCF Cloud Federation, ZCF Observability, and ZCF Unified Portal can automatically connect to the License Server.

ZStack Cloud, ZStack ZStone, and ZCF Network Service (ZNS) can connect to the License Server by using the License Management page, a deployment configuration file, or a CLI command. For details, see Connect Components to the License Server in the License chapter.

Enhanced Integration with Alibaba Cloud Wuying

ZStack Cloud 5.5.22 supports Alibaba Cloud Wuying integration with ZStack Cloud private cloud resource pools, meeting cloud resource management requirements in Wuying private deployment scenarios. Through open APIs, Alibaba Cloud Wuying can call platform features such as Cloud Assistant, snapshots, file delivery, load balancing, tag management, and volume reset, improving resource hosting and platform collaboration capabilities for Alibaba Cloud Wuying business scenarios.

New Alibaba Cloud Linux 4 ISO

ZStack Cloud 5.5.22 supports installing management nodes and compute nodes based on Alibaba Cloud Linux 4 (x86 architecture, 6.6 kernel), further improving domestic compatibility.

This ISO currently supports the following primary storage types: local storage, NFS, SharedMountPoint, and Shared Block.

Previous Versions

For more ZStack Cloud versions, see ZStack Cloud.

Cross-Product SSO

With SSO, users can access and manage multiple products or environments through a single sign-in session, improving cross-system access and operations.

Unified Tenant Management

Provides coordinated management of users, organizations, member groups, projects, and other identity and tenant objects, helping keep user data consistent across products.

Unified Access to ZStack Products

Brings ZStack Cloud, ZStack Zaku, and other ZStack products into ZCF Cloud Federation for unified access. This provides the basis for resource collection and observability analysis across products.

Integration with Third-Party Ecosystem Services

Supports Anheng Tianchi access and SSO configuration delivery, allowing users to open the Anheng Tianchi console from ZCF without entering credentials again.

Cross-Product Observability

Aggregates resource health, capacity, and performance data from multiple products to show the overall status of ZCF Cloud Federation.

Dashboard and Report Analysis

Provides global and product-specific dashboards for resource health, capacity, and performance, supporting both high-level overview and detailed analysis.

Includes built-in report templates for capacity, performance, asset inventory, and availability, and supports on-demand or scheduled report generation.

Supports custom views for combining resource and monitoring dimensions in tailored analysis.

Log Query and Diagnosis

Provides log summaries, Log Explorer, and real-time log diagnosis to help locate runtime issues by platform and log field.

Unified Network Resource Management

Manages Fabric infrastructure assets and core network resources such as Tier-0 Gateway, Tier-1 Gateway, and Segment, providing a management path from underlying network resources to service segments.

Service Network Collaboration

Allows service networks to consume underlying network resources managed by ZCF Network Service, enabling collaboration between service networks and network infrastructure.

Quick Deployment and Provisioning

Supports ZCF Network Service deployment through the Cloud Application Market. It also provides a quick start wizard and single-node or three-node deployment modes to simplify network service delivery and initialization.

One-Click Installation and Deployment

Provides a convenient and visual installation method. The Installer or Application Market helps users quickly complete basic configuration initialization and core component access, reducing the effort required to set up the environment.