What is STACKIT Block Storage?
STACKIT Block Storage is a high-performance block storage service that provides persistent SSD and HDD volumes for virtual machines. The service offers direct block-level access with extremely low latencies and is ideal for databases and transactional workloads. All data is stored exclusively in German data centers.
Core Features
- SSD volumes with up to 64,000 IOPS and 1,000 MB/s throughput
- Volume sizes from 1 GB to 16 TB
- Online expansion without downtime
- Point-in-time snapshots for backups
- AES-256 encryption by default
Typical Use Cases
Production databases: PostgreSQL, MySQL, and MongoDB benefit from SSD volumes with consistent sub-millisecond latencies.
SAP workloads: SSD volumes deliver the necessary throughput for SAP HANA and other in-memory databases.
Kubernetes Persistent Volumes: Container workloads on STACKIT Kubernetes Engine use Block Storage as CSI backend.
Benefits
- Full GDPR compliance in German data centers
- Flexible choice between performance (SSD) and cost efficiency (HDD)
- Volumes are persistent independent of VM lifecycle
- Integration with STACKIT Key Management for custom encryption keys
Integration with innFactory
As an official STACKIT partner, innFactory supports you with Block Storage: architecture, migration, operations, and cost optimization.
Available Tiers & Options
SSD
- High IOPS
- Low latency
- Consistent performance
- Higher cost per GB
HDD
- Lower cost
- Good for sequential workloads
- Lower IOPS
- Higher latency
Typical Use Cases
Technical Specifications
Frequently Asked Questions
Can I resize volumes without downtime?
Yes. Online expansion without VM restart is possible. After expansion, the filesystem must be manually adjusted.
What IOPS performance is possible?
SSD volumes deliver up to 64,000 IOPS with sub-millisecond latency. Ideal for database workloads.
Are volumes automatically backed up?
No. Use snapshots or Server Backup Management for regular backups.
Can I move volumes between VMs?
Yes. Detach from one VM and attach to another in the same Availability Zone is possible.
