Cluster specification and services
Maximum number of hosts
Maximum bare capacity of cluster
400 TiB
1280 TiB
6 PiB
Maximum available capacity of cluster
200 TiB (2 replicas)
133 TiB (3 replicas)
640 TiB (2 replicas)
427 TiB (3 replicas)
2 PiB
Commercial supports
Block storage services
Heterogeneous cluster
Cluster online extend/shrink
Generic block storage services
Storage auto-tiering
All-flash storage
Storage policy (per datastore/volume)
Topology-aware data allocation
VM-location-aware data migration
Silent data corruption detection (block checksum)
Second-level snapshots and clones
Thin provisioning
Concurrent access of shared volume
Volume stripes
Storage volume QoS settings
Tunable replication factor
SCVM I/O redirection1
Adjustable rate of data recovery and migration2
Use RDMA protocol for inter-node data transmission
Use Intel® Optane™ Persistent Memory to accelerate read and write operations3
Virtualization platforms
ELF (Built-in virtualization platform)
VMware ESXi™
Citrix® XenServer®
Built-in VM services
Virtual machine Boost mode
VM lifecycle management
VM online setting
VNC console
VM hot migration
VM cold migration
VM CPU compatibility
VM template
VM instant snapshot
VM instant/full clone
Resource-aware VM auto migration
Rule of placement group4
User-defined VM placement
Data storage policy
ISO management
Distributed virtual switch
Distributed DHCP service
VM/volume I/O throttling
VM Tools
VM list export
Network and Security
Separate license requiredSeparate license requiredSeparate license required
Number of manageable hosts
Heterogeneous cluster support
Global default security policy of cluster
Global allowlist of the cluster
Custom network security policy
Abnormal virtual machine quarantine
Automatic association of security policies with the entire life cycle of virtual machines
Declarative API
High availability of control plane
One-click hot upgrade
Operations and maintenance
Single cluster/site management
Multiple cluster/site management5
Visualized cluster topology and management
Visualized networks and management
Visualized server components and management
Server components status monitoring
Multi-language support
GUI-based installation and configuration
Monitoring & analysis of physical server/component performance/capacity/status
Monitoring & analysis of virtual resources performance/capacity/status
Monitoring & analysis of networks performance/status
Monitoring & analysis of cluster health status
Monitoring & analysis of software stack resources/health status
Customized alerts
SNMP support
Email notification
User-defined monitoring and analysis dashboard
Monitoring statistics export
SMTX OS one-click software upgrade
Node role conversion
Non Active-Active Cluster to Active-Active Cluster conversion
Event auditing
Resource usage forecast
VM resource optimization
Role-Based Access Control
API documentation
Snapshot Plan
Optional protected virtual machines
Optional execution policy and retention policy
Data protection - Async Replication
Not supportedNot supportedSeparate license required
Multi-cluster replication and restore
Supports both one-to-many and many-to-many topology for cross-cluster replication
Optional protected virtual machines
Optional execution policy and retention policy
WAN optimization
Active-Active Cluster
Not supportedNot supportedSeparate license required
Availability zone
Automated disaster recovery for VM/application services
VM HA across availability zones
Free tools (independently released)
SMTX Cluster Installer for SmartX Halo Appliance
SMTX Migration Tool: Supports VM migration from VMware to SMTX ELF (SMTX VM service platform)