Overview
In-Memory DB is a key-value structure-based in-memory data store, based on Valkey. Data is stored in Random-Access Memory (RAM) instead of on disk, providing rapid access to data.
IONOS CLOUD DBaaS for In-Memory DB is a fully managed service, compatible with legacy Redis® OSS, giving you access to the capabilities of its data structures. It can be used as a dedicated in-memory data store and a real-time database service.
When used as an in-memory data store, In-Memory DB accelerates data access from primary instances and associated data stores with minimal latency. This is quicker as compared to interacting with a traditional database. In-Memory DB acts as an in-memory data layer, speeding up the API response time while improving data retrieval.
In-Memory DB supports data persistence by writing data into long-lasting storage. For more information, see Data Persistence.
It is mandatory to specify a periodic maintenance time window for regular maintenance. During the maintenance time window, you may encounter short, occasional downtime. This is typically caused by restarting In-Memory DB or switching to another replica.
The illustration shows how a client requests an In-Memory DB cluster through the DCD or API, which the IONOS CLOUD DBaaS System provisions into a Virtual Data Center (VDC): a primary node plus one or more secondary nodes, connected over the datacenter's LAN.

You can order and manage an In-Memory DB cluster through the DCD or the API. You choose the LAN, VDC, and IP address on which In-Memory DB is available. The IONOS CLOUD DBaaS System provisions the cluster according to your request; the primary instance becomes available on your chosen LAN, VDC, and IP address once provisioning completes.
Supported versions
In-Memory DB supports the following Valkey versions:
9
Supported
8.1
Supported
8
Supported
The IONOS CLOUD DBaaS takes care of minor version upgrades during maintenance windows. For more information, see Upgrade and Maintenance.
Locations
DBaaS for In-Memory DB is available in the following locations:
Data Center
Region
Berlin, Germany
de-txl
Frankfurt, Germany
de-fra
Paris, France
fr-par
Logroño, Spain
es-vit
London, United Kingdom
gb-lhr
Worcester, United Kingdom
gb-bhx
Las Vegas, United States
us-las
Lenexa, United States
us-mci
Newark, United States
us-ewr
Security
The communication between clients and In-Memory DB is secured using TLS for secure data transmission if your In-Memory DB is set up to use it. For more information about activating TLS, refer to the In-Memory DB documentation.
You get access to all command categories except those listed in the "dangerous" category. For more information, refer to the In-Memory DB documentation.
Platform tasks
What does IONOS CLOUD manage for In-Memory DB?
IONOS CLOUD handles all back-end tasks necessary to keep your In-Memory DB cluster operating at peak efficiency:
Database management through the DCD or the DBaaS API.
Regular patches and upgrades during maintenance windows.
Automated snapshots or backups, depending on your cluster version, for disaster recovery.
Service monitoring, both for the In-Memory DB cluster and the underlying infrastructure.
What remains my responsibility?
Tasks related to the optimal health of your In-Memory DB cluster remain your responsibility, including optimization, organizing data, and updating statistics.
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