Minimal Server Side Requirements | DICOM Viewer Installation Guide

Minimal hardware requirements:

MedDream software is intended to be installed on PCs, servers or other hardware systems. Minimal hardware requirements as well as OS and other supporting software requirements for MedDream viewing functionalities are listed below:

Parameter	Minimal requirements
CPU*	Intel® Core™ i5, 4 Core, 2.00 GHz
RAM	8+ GB. Additional RAM memory must be reserved for OS, Database, PACS and/or other services if installed in the same machine.
Storage space	GB of available hard-disk space for installation; + minimum 2 days of accessible study amount. For better performance preparation cache service can be used: additional free space required for local archive and image caching (see cache management description). Storage disk performance (used for caching) directly affects image open speed (SDD, RAM or HI speed disk storage recommended).
Network bandwidth	100+ Mbit/s100+ Mbit/s
Operating systems	Windows Server 2019, Windows Server 2022, Windows 10, Windows 11 (64 bit only) and above, Debian 12, Ubuntu 22.04 LTS, CentOS 7.9-2009, Fedora 39.

*Minimal hardware requirements depend on number of concurrent users:

Concurrent Connections	CPU cores*	RAM**
1 connection	4 cores	8 GB
2 connections	4 cores	8 GB
5 connections	4 cores	8 GB
10 connections	4 cores	12 GB
20 connections	6 cores	16 GB
30 connections	8 cores	32 GB
60 connections	16 cores	32 GB
60+ connections	+1 core per 10 connections	+1 GB per 5 connections

NOTE: Minimal hardware requirements depend on number of concurrent users, workload and image types. It is recommended to allocate 20-80% more resources for unusual work load or specific data types.

The requirements for MedDream server, detail instructions, how to install MedDream and verify the MedDream functioning after system installation or restart, are provided in Install Manual. Current section provides the requirements for user workplace and instructions for verifying, that the user can access MedDream functionalities from his workplace.

Supported Java runtime

Currently supported supported Java runtime is Java 17 LTS. We recommend builds from adoptium.net. The build must be 64-bit, as under 32-bit builds some kinds of DICOM images will not be displayed.

Decommissioning of MedDream

A particular version of MedDream is supported for a limited time (see the Info window or User Manual). When support is no longer provided, we strongly recommend to update to a supported version. Be aware that the customer is responsible for outcome (including, but not limited to, personal data protection) from operating a not supported version. Not supported software versions are used at customer’s own risk.