Requirements for the core components

To install and run the Network Manager core components, your servers must meet the minimum hardware requirements.

Memory requirements

Ensure that the server where you want to run Network Manager meets the following memory requirements.

For a single-server deployment, where the Network Manager core components, Web applications, topology database, and Tivoli Netcool/OMNIbus are all on the same server, you need a minimum of 16 GB DRAM.
For a distributed deployment, where only the Network Manager core components are installed on the server, you need a minimum of 8 GB DRAM.

These are minimum requirements, and the amount of memory required will vary depending on the size of the network to be managed and how you deploy Network Manager. For more information, see Deployment of Network Manager.

Disk space requirements

Ensure that the server where you want to install Network Manager meets the following disk space requirements.

5 GB hard disk space to store the software
4 GB hard disk space per domain for cache storage
As a guidance estimate for log files, assuming that each log file is 1 GB in size and six processes are set to full debug level, you would require 24 GB of disk space. (6 processes x 4 log or trace files each = 24 log or trace files x 1 GB = 24 GB).
50 GB free disk space to run Network Manager.

These are minimum values for guidance, and the amount of disk space required will vary depending on the size of the network to be managed and how you deploy Network Manager. For more information, see Deployment of Network Manager.

Note:

For a production system that you intend to use for the long term, you must have enough additional disk space to store files that are generated by product operation, such as rollback files. If you install the Network Manager core components and Tivoli Netcool/OMNIbus, you need at least 400GB space on the partition where the products are installed.

Bandwidth requirements

The Network Manager server requires a 100 Mbps full duplex fast Ethernet connection (or equivalent) with the DNS server.

It is required that the systems supporting Network Manager components are placed in the data center with LAN speed connections of 100 Mbps fast Ethernet or Gigabit Ethernet to the DNS system and the core network devices to be discovered and managed. Slower connection speeds can be used, but might impact client session response times and must be factored into key workloads such as polling (including response times, retry count, and total network traffic introduced).

Note: During the discovery of a network device, many SNMP queries are made of that device. After discovery, routine polling (ICMP and SNMP) can introduce significant traffic on the network. With the supporting network hosted by modern LAN speeds, these workloads can be accommodated.

For more details on discovery bandwidth requirements, see Bandwidth requirements for discovery.

Other requirements

You also need a DVD drive, if you are not installing the software from a download.