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question asked: Jun 12 '09, 4:23 a.m.
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last updated: Jun 12 '09, 4:23 a.m.

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High Availability for RQM

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Anthony Kesterton (7.5k●9●180●136) | asked Jun 12 '09, 4:23 a.m.
JAZZ DEVELOPER
Renato Putini asks:

The company I'm working for is buying RQM, and IBM says RQM can't support HA because the Jazz foundation doesn't. We need RQM in HA since there are tester in India, Canada and Israel. The environment is AIX 5.3 on a p-570 LPAR, with Oracle 10g DB. We'll run it on Tomcat for now, which is another problem, since it doesn't support HA anyways. Our standard AS is BEA Weblogic, adopting WAS is out of question.

(https://jazz.net/jazz/web/projects/Jazz%20Foundation#action=com.ibm.team.workitem.viewWorkItem&id=65654)

Hi Renato

You should be able to get High Availability without any changes to RQM or Jazz Foundation. Your HA needs to address two parts - the app server and the database. There are many solutions for both. Oracle RAC is one, Vertias clustering is another (and Vertitas will work for Tomcat too). Do you have other applications that have HA today? How do they work?

regards

anthony

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Jose Miguel Ordax Cassa (2.4k●4●126●100) | answered Jun 29 '09, 11:06 a.m.
kesterto wrote:
Renato Putini asks:

The company I'm working for is buying RQM, and IBM says RQM can't
support HA because the Jazz foundation doesn't. We need RQM in HA
since there are tester in India, Canada and Israel. The environment
is AIX 5.3 on a p-570 LPAR, with Oracle 10g DB. We'll run it on
Tomcat for now, which is another problem, since it doesn't support HA
anyways. Our standard AS is BEA Weblogic, adopting WAS is out of
question.

(https://jazz.net/jazz/web/projects/Jazz%20Foundation#action=com.ibm.team.workitem.viewWorkItem&id=65654)

Hi Renato

You should be able to get High Availability without any changes to RQM
or Jazz Foundation. Your HA needs to address two parts - the app
server and the database. There are many solutions for both. Oracle
RAC is one, Vertias clustering is another (and Vertitas will work for
Tomcat too). Do you have other applications that have HA today? How
do they work?

regards

anthony


Hi Anthony, there is a technical article about HA in RTC 2.0 at:
http://jazz.net/library/article/207 and it contains several tricky steps.

Is it with RQM as easy as just have a HA solution for the App Server and
the Data Base?

Is there any doc about this point?

Thanks in advance,

Chemi.
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renato putini (6) | answered Oct 09 '09, 2:42 p.m.
The article posted by Chemi uses WAS, so it doesn't apply in my case.

Oracle is clustered already, but the point is, servers like ClearQuest CM Server or BuildForge support load balancing, like we have here, through a CISCO load balancer and using a virtual IP.

RQM does not support that, i.e., having two Tomcats in different machines using same database, users being routed through the load balancer. At least, that's the official answer we've got.

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