Appendix Shutting Down Shares HA Completely shut down the Faspex HA environment. List of System Commands Used by IBM Aspera Cluster Manager (ACM) ACM uses many Linux system commands to perform its functions. TCP and UDP Ports Used in HA Environments The Shares HA environment requires somes ports to be open in order for the HA environment to operate correctly. Using /etc/hosts Entries to Poll Transfer Nodes If you cannot use a Fully Qualified Domain Name to point Faspex to the list of IP addresses referencing all the transfer nodes, then it is possible to use a name defined in the /etc/hosts file on each server in the Faspex cluster. Partitioning Mongrel Processes between Faspex and Cargo Partition mongrels between handling Faspex UI requests and IBM Aspera Cargo requests to address performance issues. Sizing Guidelines and Suggestions The sizing requirements differ for every high availability environment depending on the use case and security requirements of each environment. The guidelines in this article do not work for every set up, but are meant as a starting point for you to figure out the requirements for your particular set up.