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SQL Server Reporting Services Scale out Configuration

One of the major benefits that SQL Server provides is the scaling out the SQL Server Reporting Services. SQL Server Reporting Services are used as concept of hosting reports which various business processes requires. SQL Server Reporting Services does an efficient job in hosting all the reports. But the problem comes when the load starts increasing in terms of number of users accessing the reports. This may result in:
1.       Slow processing of SQL Server Reports
2.       Crashing of SQL Server Reports Server
In order to overcome the above issue, SQL Server Reporting Services can be overcome through the concept of scalability. This is implemented with the help of network load balancing (NLB) and Domain Implementation.
The following figure gives a clear cut picture of how to achieve the same:


In the above example, there are there servers in the NLB serving the clients through a Virtual NLB IP i.e. 192.168.1.25. The client only knows the Virtual IP, he/she does not knows the actual NLB setup. So the client sends the request of the report to the Virtual IP. Every server in the NLB is hosting the instance of the Reporting Services component for which the Report Catalog is hosted on 192.168.1.27 and actual database is hosted on the server 192.168.1.26. The above setup helps in dividing the control of report generation in 3 servers serving in the NLB. So if the number of users increase on the report server, then the 3 servers will divide the load and serve the request efficiently.
The above setup is still scalable. We can add more servers in the NLB as and when the load increases.

Comments

Vinay Anand said…
Daily 40000 reports delivered from one server is now distributed to 4 individual server. Load shifted to 10000 reports on each node.

Really Good concept.. Thanks Sir for helping to implementing this solution at LPU

Vinay Anand
November 7, 2011 at 8:03 AM
Rohit said…
Thanks a lot Vinay for posting and appreciation of the concept.
November 7, 2011 at 8:08 AM
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