Just to answer some of your questions. Multiple servers connecting to the same database is called “server groups”. Documentation on setting those up is in the “Configuring server groups” section of Chapter 6 in the BMC Remedy Action Request System 7.6.03 Configuration Guide<http://documents.bmc.com/supportu/documents/08/30/160830/160830.pdf>.
Balancing the load between severs or Mid-Tiers, and moving users over to a running system if one of the servers or Mid-Tiers goes down, is called “load balancing”. There are some white papers and presentations on BMC DN about load balancing found here: 06-Sep-2007 Using a Hardware Load Balancer with AR System 7.1.00 PDF<http://documents.bmc.com/supportu/documents/40/92/84092/84092.pdf> http://communities.bmc.com/communities/docs/DOC-2841 That all said, I would strongly recommend against separating two servers in a server group – even across a “high speed connection”. Network lag between the AR System server and the database (especially through a firewall) can cause significant performance issues – even leading to errors and failures as timeouts occur. If you have two sites remote from each other, you should keep all the servers in one of your data centers and then place a Mid-Tier only in the remote site. This will enable the Mid-Tier to perform local operations and caching for web clients in the remote site and reduce the traffic across the high speed connection. If you don’t wish to do that, and for whatever reason require a server in each location, do not use server groups. Instead, use the Distributed Server Option (DSO) to transfer key data from one server site to the other. You’ll need a database local to each site as well with this option, though. -David J. Easter Manager of Product Management, Remedy Platform BMC Software, Inc. The opinions, statements, and/or suggested courses of action expressed in this E-mail do not necessarily reflect those of BMC Software, Inc. My voluntary participation in this forum is not intended to convey a role as a spokesperson, liaison or public relations representative for BMC Software, Inc. From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Stephen Bunn Sent: Sunday, December 26, 2010 6:12 PM To: [email protected] Subject: multiple ar servers connected to one database ** List, I'm looking at deploying Remedy ITSM 7.6. We are currently running an older version of remedy on a single box. When we upgrade I would like to move to a more HA fault tolerance scenario. The installation documentation talks about the ability to run multiple AR servers connected to the same database, but it doesn't really go into the details of setting up and configuring it. Is anybody else doing this? Basically what I want to setup is outlined in the attached PDF. What I would like to do is have users in site1 connect to the mid tier in site1 and users in site2 connect to the mid tier in site2. In the event that either of the AR servers or mid tiers goes down users would begin using those applications in the other site. Essentially the two AR servers would be connected to the same database and users could connect to either, the same with the Mid tiers. If anybody has any guidance on this, white papers, tutorials, or documentation that I have overlooked it would be appreciated. Thanks. Note: apparently I can't attached an image or PDF or list rejects it. Essentially we have two geographically separated sites connected via a high speed connection. site1 ------- Remedy Mid Tier Remedy AR Server Oracle DB site2 --------- Remedy AR server Remedy mid tier Respectfully, Stephen Bunn _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_
