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Any experience with the new DCC module and a good topology for it ?


long TRUONG (3654121147) | asked Jul 16 '15, 2:03 a.m.
 We migrated from Linux/WAS to Windows/Tomcat when we upgraded from 3.x to 4.0.3. And now we are planning a quick migration of RTC/RRC 5.0.2 back to Linux/WAS while also contemplating bringing in the DCC (and JRS) due to issues with the Java ETL CCM WI job, which has never been completed successfully for more than a year, despite the fix to Java ETL since 5.0.1

We have ruled out implementing the DCC before the switch to Linux/WAS, as:
  • the DCC is working with Tomcat but IBM recommendation is to use only DCC/WAS in PROD
  • And IBM support confirmed that DCC/WAS should work with CLM/Tomcat, but the combination has never been tested to be officially supported (same for RRDI/WAS & CLM/Tomcat)

We'd like to have the DCC/JRS on a separate host with its own JTS and WAS, so the data collection to the DW would be independent of the ups and downs of the CLM appServer.

  On standard one-server departmental topology https://jazz.net/help-dev/clm/index.jsp?re=1&topic=/com.ibm.jazz.install.doc/topics/c_topology_ex_stand_clm_dept.html&scope=null

All apps and reporting modules are on same server with the same JTS and with WAS.

 

Yet on Distributed enterprise topology https://jazz.net/help-dev/clm/index.jsp?re=1&topic=/com.ibm.jazz.install.doc/topics/c_topology_ex_dist_clm_dept.html&scope=null

Each app is with its WAS and on its own server, yet each shares the same JTS.

  And we want to have the reporting modules (DCC & JRS) on separate JTS (as it is one of the choice for stand-alone DCC) so it is not interrupted by the appServer or apps going down.

Hence we would appreciate any input/advice/comments from your experience on our 2 desired topologies:

 Currently we have an (unused) RRDI/WAS server on Window platform, which we can use for the DCC/WAS server, hence if we can't buy anything with a new DCC/WAS Linux server, we rather reuse an existing Window server.

Unfamiliar with WAS so far, we also wonder:

  • Is there any scenario where a WAS on a separate host by itself would be required or recommended ?
  • Is there a central WAS console to configure all the separate WAS ?
What would be your vote (and why) for the switch back to Linux/WAS:
  • with CLM 5.0.2 & the external install of DCC/JRS, and an upgrade to 6.0 later
  • or with CLM 6.0 with DCC/JRS included.

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Ralph Schoon (63.3k33646) | answered Jul 16 '15, 2:13 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
edited Jul 16 '15, 2:25 a.m.
Please see this page and the subsequent ones: https://jazz.net/wiki/bin/view/Deployment/StandardTopologiesOverview
The DCC should be on a dedicated server: https://jazz.net/wiki/bin/view/Deployment/RecommendedALMDeploymentTopologies6

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