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Before installing Teamwork Cloud, ensure that the system requirements described in this chapter are met.

Recommended system requirements

System requirements are dictated by the intended deployment, taking into account the overall load which the environment will experience, including:

• Number of concurrent users
• Level of activity (commits) per day
• Overall number and size of the projects stored in Teamwork Cloud.

The database (Cassandra) can be located on the same server as Teamwork Cloud or on a separate server. Storage requirements apply only to the node where the database is located. Teamwork Cloud hosting nodes can be virtualized without any issues if the host is not oversubscribed on its resources.

Nodes containing both Teamwork Cloud and Cassandra:

• 96 -128 GB ECC RAM
• >=16 processor threads (equivalent or better than the Intel Xeon E-2278G, or their AMD counterparts, supporting x86-64 architecture)

• 1TB NVMe/SSD DAS storage

Nodes containing only Cassandra:

• 48 - 64 GB ECC RAM
• >=8 processor threads (equivalent or better than the Intel Xeon E-2234, or their AMD counterparts, supporting x86-64 architecture)

• 1TB NVMe/SSD DAS storage

Nodes containing only Teamwork Cloud:

• 48 - 64 GB ECC RAM
• >=8 processor threads (equivalent or better than the Intel Xeon E-2234, or their AMD counterparts, supporting x86-64 architecture)
• >250GB storage

Storage requirements

Make sure your environment meets the following storage requirements:

• Solid State Drives with high IOPS 
  NVMe or SSD drives are highly suitable due to their low latency and high throughput. 
• Separate disk mounts
  Data, commit logs, and applications exhibit different access patterns and should reside on separate disks to avoid I/O contention. 

For on-premises deployment, Apache Cassandra is designed to run on multiple independent servers. Each Cassandra node should have Directly Attached Storage (DAS) composed of NVMe drives for optimum performance. Traditional network-attached storage solutions that rely on IP-based connections (iSCSI, NFS, or SAN) are not recommended for on-premises deployments, as they introduce additional latencies and anti-patterns. To learn more, see the following topics:

• Apache Cassandra Hardware Choices
• DataStax Apache Cassandra Capacity Planning Guide

For cloud deployment, use storage technologies that have been benchmarked for Cassandra. Modern solid-state/flash arrays with fast interconnects are preferred. Note that Teamwork Cloud is not compatible with managed Cassandra services, such as Amazon Keyspaces. To learn more, see the following topics:

• AWS EBS Cassandra Best Practices
• DataStax AWS EC2 Recommendations

Software requirements

Teamwork Cloud supports the following operating systems:

• Linux 64-bit RedHat 8, RedHat 9, Oracle Linux 8.

• Windows 2016 or Windows 2019.

For a fully working environment, you will also need the following:

• Cassandra is compatible with OpenJDK 11.0 (tested with Eclipse Temurin™ by ADOPTIUM 11.0.14)
• Teamwork Cloud is compatible with OpenJDK 17.0 (tested with Eclipse Temurin™ by ADOPTIUM 17.0.8)
• IMPORTANT. To use modeling tools with DSLS licenses, Microsoft Visual C++ Redistributable must be installed (see Latest supported Visual C++ Redistributable downloads). This applies to Windows OS only.
• FlexNet or DSLS license server
• Cassandra 4.0.x, 4.1.x
• A static IP address for each node.

• Open ports 1101, 2181, 2552, 7000, 7001, 7199, 9042, and 9142 between servers in a cluster.

• Open ports 3579, 8111, 8443, and 10002 (default) for clients. The port number 10002 can be changed according to the port assigned to secure connections between the client software and Teamwork Cloud.

The following table lists the ports that Teamwork Cloud services use and their descriptions. Port traffic is TCP unless otherwise specified.