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enum Block Storage.

NVMe-backed, replicated block storage for Kubernetes Persistent Volumes and standalone disks. Low latency, flat per-GB pricing.

In short

enum Block Storage is NVMe-backed, synchronously replicated block storage operated in Frankfurt, Germany. It attaches to enum Kubernetes Engine workloads as CSI PersistentVolumes and to standalone compute instances, with sub-millisecond read latency and a flat per-GB price. No burst credits, no per-operation fees.

Why enum Block Storage?

Fast disks without the EBS pricing maze

NVMe Performance

Sub-millisecond reads. Synchronous writes at ~1ms with 3x replication. Databases, queues, and stateful apps run without tuning around slow disks.

Synchronous Replication

Every write is acknowledged after it lands on independent failure domains. A host failure does not cause data loss or downtime.

Kubernetes Native

Provision through the CSI driver as PersistentVolumeClaims. Dynamic provisioning and online resizing work out of the box.

Flat Per-GB Pricing

One price per GB per month. No burst credits, no per-operation charges. The bill scales with the volume, not the workload.

Technical Specifications

NVMe hardware with software replication

NVMe
Backing Media
All volumes on NVMe flash
3x
Replication
Synchronous writes across failure domains
<1ms
Read Latency
Median 4K random read, 3x replicated volume
~1ms
Write Latency
Median 4K random write with 3x replication
Frankfurt, DE
Data Location
German data center, EU-only
CSI
Kubernetes Integration
PersistentVolumeClaims via CSI driver
AES-256
Encryption at Rest
All volumes encrypted

One Price Per GB

No burst credits. No per-operation fees.

Block Storage0.10 € / GB / month
See full pricing

enum Block Storage vs. AWS EBS

What you get when you stop paying for hidden storage fees.

enumAWS EBS
Pricing Model
Flat per GB per month
gp3 baseline + throughput
Data Location
Germany, guaranteed EU data residency
US company, subject to CLOUD Act
Compliance
GDPR-native, NIS2-ready, DORA-suitable
Subject to US CLOUD Act
Support
Real engineers, no ticket queue
Ticket system, paid support tiers

Features

NVMe Performance

Sub-millisecond latency for databases, queues, and stateful workloads.

Synchronous Replication

Every write is replicated across independent failure domains. No single-disk failure takes a volume down.

Kubernetes Native

Provision through CSI as PersistentVolumeClaims. Resizing and dynamic provisioning included.

Predictable Pricing

One line item: euros per GB per month. No burst credits, no per-operation fees.

Perfect for

  • ✓Databases (Postgres, MySQL, Redis, MongoDB) on Kubernetes
  • ✓Message queues and streaming (Kafka, RabbitMQ)
  • ✓Stateful workloads that need low-latency Persistent Volumes
  • ✓Standalone disks for compute instances
  • ✓Replacing EBS gp3 or io2 at a predictable price
  • ✓Workloads that need EU-only data residency

Frequently Asked Questions

What is block storage, and how is it different from object storage?
Block storage gives you a raw disk that an operating system or Kubernetes Pod can format, mount, and read from at the block level. It is what databases, message queues, and other stateful workloads need. Object storage (like enum Object Storage or AWS S3) is accessed over an HTTP API and is built for files, backups, and unstructured data. enum runs both, and they are billed separately.
How do I use block storage with enum Kubernetes Engine?
Create a PersistentVolumeClaim in your cluster and the CSI driver provisions the volume automatically. No storage class to configure. Online resizing and dynamic provisioning work out of the box.
Can I attach block storage to a compute instance without Kubernetes?
Yes. Volumes can be attached to standalone compute instances as well as to Kubernetes Pods. The same NVMe-backed, replicated disks back both paths.
How does pricing work?
You pay a flat rate per GB per month for the volume size you provision. There are no throughput surcharges and no per-operation fees. Outgoing traffic is billed per GB at the standard enum rate. All prices in euros, excluding VAT.
Is my data replicated and encrypted?
Every write is replicated synchronously across independent failure domains, so a single host or disk failure does not cause data loss or downtime. All volumes are encrypted at rest with AES-256.
Where is my data stored?
All data is stored exclusively in our data center in Frankfurt, Germany. Your data never leaves the EU. We operate our own infrastructure, no US cloud providers in the supply chain.

Member of

CNCF Member
Linux Foundation Member
RIPE NCC Member

Explore the platform

enum Kubernetes Engine

Production-ready Kubernetes in minutes

enum Object Storage

S3-compatible, encrypted, scalable

Pricing

Quickly scan what it costs

AWS EBS alternative

Start building on enum.

Self-service cloud infrastructure with a developer experience that gets out of your way. Built and operated in Europe.

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✓CNCF & Linux Foundation member
✓Digital sovereignty from Germany
✓No US dependencies, no CLOUD Act