System Requirements

Technical Requirements for server and clients in custo diagnostic 5.x networks - dedicated to a clinical environment.

These requirements refer to custo diagnostic clinical Version 5.2 and above.

Subject to change without notice.

Server

Hardware / virtual setup

• HD min. 250 GB – depending on usage (see below), two partitions 50 GB (System) and 250 GB 
• RAM min. 8GB
• 2 x vCPU à 1.5 GHz

Supported Operating Systems

64bit Windows is required:

• Microsoft Windows 10 (only recommended for small environments)
• Microsoft Windows Server 2016 
• Microsoft Windows Server 2019

Supported database systems and database servers

• Microsoft SQL Server 2008, 2008 R2, 2012, 2014 (all in 32bit and 64bit), 2016
  all Editions: Enterprise, Datacenter, Business Intelligence, Standard, Workgroup, Web
  Express Edition is not recommended due to db size restrictions
• mariaDB (custo diagnostic 5 clinical ships with mariaDB)

(The H2 database which comes included with custo diagnostic is not supported in a production environment of custo diagnostic clinical.)

Client

(32/64bit supported)

• Microsoft Windows 7 and Microsoft Windows 8 (not recommended, not longer tested in the future)
• Microsoft Windows 10 
• Microsoft Windows Server 2016
• Microsoft Windows Server 2019
• 4GB RAM and 1CPU is sufficient

Windows Server can be used as a client or Windows Terminal Server - but not for an acquisition workplace. 

Ports

• USB ports depending on custo devices in used
• Sufficient WLAN quality for mobile applications
• BT test with custo devices passed, if internal BT should be used

Requirements for Bluetooth connectivity

All Bluetooth devices of custo med are working at least with Bluetooth 2.0 EDR-specification and are Class-2 devices - which means maximum of 10 meter distance from the device to the PC.  Do not use device and custo diagnostic application PC in different rooms. In circumstances where this is required (e.g. bedside ECG in infectious environments to avoid the contamination of the device trolley) please keep both in line of sight.

System Architecture

custo diagnostic is a Apache Tomcat based service. The process responds on ReST / http / https requests and access  the SQL Database and the raw data directory. 

SQL Database for patient and examination information

• SQL user-password combination, SQL user required to be DB owner, Server roles: public, master: read
• Location: free of choice (could be a dedicated/separate SQL server)

Raw data directory

• 100GB are good for a start, necessary examination file storage can be calculated based on the table below, based on usage
• The Apache Tomcat service must have full access to this Fileshare.
• It is recommended to locate the fileshare on the same server.
• Location: free of choice (could be a dedicated Windows file server - NAS, Samba or CIFS on NetApp is not recommended!)
• the data directory must only be accessible by administrators and Apache Tomcat Service. 

Examination file sizes for storage usage calculation:

Network connectivity

A recording of a holter ECG produces up to 10 MByte of data. 

For a WiFi based use of ECG recordings a stable, constant WiFi connection is necessary during recording and access.

Firewall setup (by clinic administrator): Server must only be accessible by administrators and Apache Tomcat User. All clients only access the custo diagnostic server by using http/https. 

(In environments of unstable / not constant WiFi connections custo supplies dedicated solutions. Please ask your dealer in this case.)

Remote access to customer systems for installation and maintanance

• Option 1: VPN client dialin and RDP access to the dedicated custo diagnostic server
• Option 2: on-demand Teamviewer, WebEx or GoToMeeting sessions

Operators Maintenance

Except when otherwise stipulated in written form, the clinic is the operator of the system and takes care for typical operator tasks.

Regarding the maintenance of hardware and software components, the following aspects should be monitored by the operator:

• Hardware and software problems (windows system events)
• Sufficient disk space
• Operating system patches
• CPU performance
• Restart of the server (once per month)
• Backup

IT Security and Data Protection

custo diagnostic server is a windows service based on Apache Tomcat and a database server. 

General IT security tasks are part of the operators mainntainance and operating:

• Security by proxy/virus scan
• Administration of Windows security
• Protection of Windows shares, program directory and raw data directory must only be readable by administrators and custo diagnostic service user.
• Establishing a firewall
• Security of remote access
• Establishing and monitor a backup process of RAW data, program directory and database

Anti-virus solutions

There is no general limitation for the usage of virus scanners.

In case of misbehavior or errors, custo med may ask the operator to limit/change the function of the virus scaner.

Subject to change without notice.