OpenNMS server requirements
"Mahoney, John T." <[email protected]>
| Newsgroups | gmane.network.opennms.install |
|---|---|
| Message-ID | <[email protected]> |
I am sure this is a common question but I have not been able to quickly locate an answer. What are the server requirements to support OpenNMS monitoring about 200 nodes? I am figuring that we will want to run OpenNMS, Postgres, and Tomcat all on the same server. I did find this info but it may be out of date: http://www.opennms.org/documentation/InstallStable.html Minimum Requirements While it is impossible to exactly size OpenNMS for a particular environment, the following represents the minimum requirements for installation, assuming a network of about 200 devices. Note that OpenNMS can monitor more than 100 times that given the proper hardware. Processor A 1 GHz Pentium III (or equivalent processor) or better. OpenNMS can also take advantage of multiple processors. Memory A minimum of 256 MB of RAM, although 512 MB is strongly recommended. The OpenNMS Java Virtual Machine benefits from large amounts of memory, up to 2 GB, and more if using a 64-bit processor. Given a budget choice between more RAM and a faster CPU, choose more RAM. Disk Space OpenNMS requires about 200 MB of disk space for the program files. In addition, each data variable collected requires, by default, a little under 300 KB of disk space. It is safe to assume that each interface being managed will require around 2 MB of disk space, so for 200 interfaces you are looking at 400 MB (conservatively). Depending on the number of events stored, you can assume 100 MB to 200 MB are required for the database. Finally, the OpenNMS logs can grow quite large, especially in debug mode. Edit the log4j.properties file in the OpenNMS configuration directory (usually /opt/opennms/etc or /etc/opennms) to change those settings. By default, the Log4J file rotation is configured to use 100MB per log file, which ends up using a little under 2 GB. Note: Due to the write-heavy nature of time-series data and the database, it is recommended that you do not use RAID-5 with OpenNMS. RAID-1 or RAID-1+0 is recommended if using RAID. In addition, LVM adds a small but appreciable amount of overhead and it is recommended that you do not use it Thanks -- John ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Please read the OpenNMS Mailing List FAQ: http://www.opennms.org/index.php/Mailing_List_FAQ opennms-install mailing list To *unsubscribe* or change your subscription options, see the bottom of this page: https://lists.sourceforge.net/lists/listinfo/opennms-install