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Providing Open Source High-Availability Software for Linux and other OSes since 1999.

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1 February 2010 Hearbeat 3.0.2 released see the Release Notes

18 January 2009 Pacemaker 1.0.7 released see the Release Notes

16 November 2009 LINBIT new Heartbeat Steward see the Announcement

Last site update:
2019-12-06 10:48:06

Agilent Technologies - The premier measurement company -- advancing electronics, communications, life sciences and chemical analysis.

This entry courtesy of Ray Frush

Here at our Fort Collins, CO site we've implemented 3 Linux HA clusters so far.

Cluster 1 is a middle ware Oracle Database and Web server that was implemented when the native Oracle clustering tools failed to provide smooth failover. At the time of deployment, Oracle RAC-9 was a new product on Linux, and turned out to have some early adoptor issues. We switched to a dual active database and Linux-HA to keep the project moving. The cluster has been running for nearly 2 years. Cluster 2 was built as a second middleware set of Web servers.

Both Cluster 1 and Cluster 2 track and report realtime status data for our manufacturing process line. Availabilty of the realtime status data depends on the virtual server to be available to collect, process and present (via the web server) the data to management as well as operations.

Our third cluster is used as our site's e-mail master host. Using the virtual host to float between the two nodes allows for seamless avilabilty to the users while we perform maintainence. Due to the volume of e-mail, we would frequently swamp our upstream e-mail hop with queued mail if our old server was down for several hours.

Heartbeat is being tested for deployment of cluster nodes separated by building at our site. To avoid single room power failures (due to scheduled bi-annual system inspections) we are using Intel fiber LAN cards to drive heartbeat over 50micron fiber links between our buildings.

Gerfor SA is a plastics manufacturer in Colombia.

This entry courtesy of Renzo Alejandro Granados of who planned and installed the system.

Gerfor has deployed Linux-HA to provide highly available application servers (xdmcp, vnc) Giving access to applications such as StarOffice, Browsers, and clients of their mission critical system. The cluster has 2 servers (933 Mhz, 1Gb, 18Gb available to the OS after hw raid, 3 NICs) using Conectiva Linux 6.0 (up to date).

It gives service to 90 "thin clients" (old PCs). Normally each server has the half of the clients ("load balancing").

MAN Nutzfahrzeuge AG is one of the most important subsidiary companies of the MAN AG. Our business is it to build trucks and busses, which are shipped to the whole world. IT services and infrastructure across the group are consolidated in our data processing centers.

This entry courtesy of Tobias Mucke who planned, installed, configured and documented this solution.

We are now running Heartbeat in conjunction with DRBD in production since the beginning of 2003. This stable solution, known from expierence, makes it possible to provide highly available services and to guarantee this fact to our customers in service level agreements. The Heartbeat cluster solution is one part of our three tier architecture, with a loadbalanced cluster in front and an Oracle DB at the backend. It provides the application server for our central document management system which powers the whole intranet of our enterprise. Besides that the HA environment consists of an NFS server and an administration tool called CfEngine. For each of these services we configured an own resource group with its own IP addresses, filesystems and so on.

Thanks to the Heartbeat team for this great piece of software and the support given through the mailing list. Keep it up!

Sony is one of the best known names in audio, video, televisions, information systems, communications and electronic components.

The entry is courtesy of Shallyee Shang

Heartbeat is now running on a few production servers, which are very important in the manufacturing of many recent digital products. We have several Heartbeat clusters, in conjunction with DRBD, which are mainly constructed in two type in our systems. One is as a two node cluster running beside product lines, serving the equipment manufacturing process. Our other usage is as the load balancer of a big data warehouse server which run the Linux virtual server package. These clusters had run since Sep 2003, with almost no trouble occured.

As of July 2004, real failover has occured twice in our Heartbeat clusters. One is when the facility staff accidently pulled the power supply to the active server. When this happened, all services failed over to standby side successfully. The other is when a real hardware failure occured on active side. Although cluster did not fail over to the standby side automatically because of the nature of the hardware failure, we are happy that we could recover the services in a very short time.