CloudStack Private Cloud
Our CloudStack Private Cloud – Virtual Datacenter – is designed for maximum scalability, performance and stability. Management is via the CloudStack web interface and all capacity can be flexibly adjusted. The backend infrastructure consists of Linux-certified Dell PowerEdge servers, Ceph Enterprise storage and a spine-leaf network architecture.
- 10 – 20 GHz CPU
- 16 – 64 GB Memory
- 250 – 1,000 GB SSD Storage
- Virtual Data Center
- Management: CloudStack
- High Availability (HA)
- CloudStack KVM Cluster
- Digital Realty Frankfurt
- Own virtual networks
- up to 10 Gbit/s
- SLA: 99.9%
- 20 – 40 GHz CPU
- 64 – 128 GB Memory
- 1 – 2 TB SSD Storage
- Virtual Data Center
- Management: CloudStack
- High Availability (HA)
- CloudStack KVM Cluster
- Digital Realty Frankfurt
- Own virtual networks
- up to 10 Gbit/s
- SLA: 99.9%
- 20 – 50 GHz CPU
- 128 – 256 GB Memory
- 2 – 5 TB SSD Storage
- Virtual Data Center
- Management: CloudStack
- High Availability (HA)
- CloudStack KVM Cluster
- Digital Realty Frankfurt
- Own virtual networks
- up to 10 Gbit/s
- SLA: 99.9%
- 50 – 250 GHz CPU
- 256 – 1,536 GB Memory
- 5 – 30 TB SSD Storage
- Virtual Data Center
- Management: CloudStack
- High Availability (HA)
- CloudStack KVM Cluster
- Digital Realty Frankfurt
- Own virtual networks
- up to 10 Gbit/s
- SLA: 99.9%
* All prices are net, plus 19% VAT. Prices listed here are for orientation only. We provide an individual quote upon request.
All our CloudStack Private Cloud offerings include
Sovereign enterprise cloud infrastructure – operated in Frankfurt am Main, fully under European data protection law.
CloudStack Data Center
- Virtual Data Center
- Linux-certified servers
- Intel Xeon Scalable processors
- Up to 2 TB of memory
- Scalable, flexibly adjustable cloud instances
Storage
- Ceph Enterprise Storage
- 100% flash-based (SSD) storage
- Storage up to 250 TB
- Daily backup
Network
- IMT-Systems Firewall Appliance
- NSX Appliance
- IPsec site-to-site connectivity
- VPN access to your corporate network
CloudStack Software
- CloudStack Management
- Linux LTS Server
- pfSense Firewall
Data Center
All IMT-Systems data centers meet industry standard certifications. In Frankfurt am Main we use multiple high-performance data centers at Digital Realty (Interxion). Thanks to the extremely fast connection to Germany's largest internet exchange point, the DE-CIX, we offer optimal connectivity and the best possible latency within Germany and Europe.
Location & Redundancy
- 700+ carriers, ISPs and CDNs available on site
- Direct access to the DE-CIX – Europe's largest internet exchange
- Direct peering to all major cloud platforms
- 2N redundant UPS systems with N+1 diesel backup (60 hours)
- Multi-stage security: biometric access, CCTV, 24/7 security personnel
- Argon-based fire suppression with VESDA early detection
- 100% electricity from renewable sources
- 24/7 support and ECC command center on site
- GDPR-compliant data residency in Germany
Why CloudStack Private Cloud from IMT-Systems
CloudStack is the open-source enterprise cloud platform originally developed by Citrix and today maintained by the Apache Software Foundation. It powers some of the largest public clouds worldwide – including workloads of telecom providers, hosting providers and several government cloud platforms. At IMT-Systems you receive this mature platform as a fully dedicated private cloud in our data centers in Frankfurt am Main.
The real VMware vCloud Director alternative
If you have been working with VMware vCloud Director or a similar multi-tenant cloud platform, CloudStack is the economically and functionally best alternative. You get all the central enterprise features:
- Virtual Datacenters (VDC) with dedicated resource pools
- Self-service portal for your users – provisioning of VMs, networks and storage without operator intervention
- API-driven with REST API, CloudMonkey CLI and Terraform provider
- Multi-tenancy with tenant separation at network and storage level
- Templates, ISOs and snapshots for rapid provisioning
- Integrated load balancer and firewall (NSX or VR)
- LDAP / Active Directory integration and SAML SSO
And all this without per-socket licensing costs, without Broadcom-driven price adjustments and without strategic dependency on a single vendor.
Sovereign cloud without hyperscaler risks
Unlike AWS, Azure or Google Cloud, you receive a physically dedicated cloud platform – no shared hypervisor resources, no hidden sub-processors, no US jurisdiction. All data remains exclusively in our data centers in Frankfurt am Main, under German law and fully GDPR compliant.
This makes CloudStack the natural choice for:
- Federal and state authorities with high sovereignty requirements
- Healthcare providers with patient data and HL7 workloads
- Financial service providers with BaFin/MaRisk requirements
- Energy providers with critical infrastructure (KRITIS) classification
- Industrial companies with intellectual property protection needs
Spine-leaf network architecture
Our CloudStack platform is based on a modern spine-leaf network architecture with Dell OS10 switches and VLT aggregation. This means predictably low latency between all VMs (east-west traffic), full bandwidth utilization without bottlenecks and horizontal scalability without complete re-architecture.
At application level we support VLAN, VXLAN and VLAN-isolated networks per tenant – including micro-segmentation via NSX-T or Tungsten Fabric.
Ceph as storage backend
As storage layer we use Ceph with triple replication on pure NVMe/SSD storage. This provides:
- Consistent performance even under concurrent workloads
- Self-healing on disk or node failure
- Linear scaling by adding more OSDs
- Block, object and file storage from a single system
- Snapshots, clones and instant provisioning
Typical use cases
Migration from AWS / Azure / GCP: Public cloud repatriation for cost or compliance reasons. We help with image conversion and workload migration.
VMware vCloud migration: Strategic diversification after the Broadcom acquisition. CloudStack templates can directly take over many VMware workloads.
Multi-tenant hosting: You are a service provider yourself and need a multi-tenant cloud for your customers? CloudStack is the standard tool for exactly this use case.
Development and test environments: Self-service for developer teams with clearly separated resource pools, quotas and automatic cleanup.
DevOps and Infrastructure-as-Code: Full automation via Terraform, Ansible and Pulumi – with your own image pipelines.
CloudStack vs. OpenStack
CloudStack and OpenStack are the two leading open-source cloud platforms. In comparison, CloudStack offers:
- Simpler architecture – a single management server instead of 30+ microservices
- Lower operational effort – ideal for medium-sized cloud platforms
- Faster deployment – productive cloud in days, not months
- More stable API guarantees – backward compatibility across major versions
If you have specific requirements that only OpenStack covers, we will advise you honestly – and can provide both platforms.
Personal support
You always reach cloud-engineering staff with direct CloudStack experience – no first-level tickets, no scripts. We help with architecture design, custom templates, multi-tenant setup and performance tuning.
Get in touch or call directly: +49 (0)6196-2021089-0