With some disaster recovery solutions, both on physical and virtual servers, the appropriate agents are installed and these agents have very small footprint. In this scenario, the production environment has physical servers and the disaster recovery site is deployed in a virtual environment. In order to achieve significant cost savings, some companies not only virtualize their disaster recovery site but also use virtual servers in the production environment. When a disaster strikes the primary site, then all the users will be failed over to the remote site. The only way to make sure that your disaster recovery solution works is to test it periodically.
Virtual servers in conjunction with certain disaster recovery solutions can be used as a migration tool. There are many ways to perform disaster recovery with Microsoft SQL Server Reporting Services (SSRS). The disaster recovery site should closely duplicate the primary data center Reporting Services environment. To ensure connectivity from the clients to the primary data center and the disaster recovery site, a common technique is to use a content switch to load-balance traffic within the individual sites as well as between the global sites. To ensure that the RSDB within the disaster recovery site is up-to-date, a common technique is to use asynchronous database mirroring. 2) Copy the backups over to the disaster recovery site, restoring each Reporting Services database in no-recovery mode. 3) Set up the failover partner on the mirror (that is, the DR site) before you set up the failover partner on the principal server. In this scenario where the Reporting Services servers within the primary data center go offline, the hardware content switch will detect a network connectivity issue and automatically fail over to the disaster recovery site. If the primary data center RSDB SQL Server cluster goes offline, the disaster recovery solution is to manually fail over to the RSDB on the disaster recovery site to continue serving up reports.
If the entire primary data center goes offline for either a planned or unplanned outage, the content switch will automatically fail over to the Reporting Services farm in the disaster recovery site, but you will need to perform a manual failover to ensure that the Reporting Services servers can connect to the copy of the RSDB in the disaster recovery site.
1) The content switch will perform the task of suspending the primary IP addresses and activating the DR site IP addresses so that all connections will be redirected to the disaster recovery site.


It is important to understand that the Reporting Services report jobs, schedules, and subscriptions will not be mirrored between the RSDB from the primary data center and the disaster recovery site. Note that logins created on the primary site may not be replicated to the disaster recovery site. With these guidelines, you can prepare your Reporting Services environment for disaster recovery scenarios. For a great guide on SQL Server Reporting Services Disaster Recovery – check out our awesome case study.
Customers can have multiple physical servers at the primary location and at the offsite disaster recovery location they can have one physical server with multiple virtual servers. Both the physical and virtual servers are controlled by the Application and it can be located either at the production site or at the remote site. One can have one or more physical servers housing many virtual servers both at production and remote sites. This increase in virtualization poses tremendous disaster recovery and data protection challenges to IT Administrators.
Based upon customer experience and internal testing, this technical note provides guidance around best practices to design and manage robust end-to-end disaster recovery (DR). The left side (in green) represents the primary data center, while the right side (in orange) represents the disaster recovery (DR) site. It should be located in another geographic location such that if the primary data center experiences a resource disruption (for example, in connectivity or power), all traffic can be redirected to the alternate site with minimal disruption to service. While most of the information here is applicable to these databases (such as data marts, operational data stores, transactional systems, and data warehouses), they have their own disaster recovery requirements and procedures that should be separate from the reporting infrastructure. But note that this is a manual failover process, which requires manual configuration of the Reporting Services servers in the Reporting Services farm to point to the RSDB instance within the disaster recovery site.
To work around this problem, we recommend storing all of these logins into their own database and mirroring this database to the DR site as well. The key here is that you will need to use a combination of hardware components, network connectivity, SQL Server database mirroring, and architecture to create a disaster recovery infrastructure to support an enterprise SQL Server Reporting Services environment. In the case of Exchange Server, one can set up a granular plan for key executives, sales and IT people, in which the replication occurs more frequently to achieve the required Recovery Point Objective (RPO) and Recovery Time Objective (RTO).


For restoring emails, mailboxes and databases, the local backup data can be used and for disaster recovery purposes, the remote failover server can be utilized.
Also, multiple virtual servers from the primary site can be easily backed up and replicated to the disaster recovery site. In general the two sites should be identical or at least very similar to each other so that the DR site will be able to handle the load of the primary data center; all of this should be transparent to the users.
As well, there is direct fiber network connectivity between the primary data center and the disaster recovery site to ensure minimal latencies for any communication between the two centers.
Note that the disaster recovery (in this example, Montreal) server is the one that is now active, so you will need to manually transfer the data from the DR site server back to the primary data center server (in this example, Montreal to Boston). A common method to resolve this issue is to script all of these Reporting Services jobs in the primary site and then use these scripts to re-create them on the disaster recovery site (with the jobs disabled); activate these jobs only if the system fails over. Designed to simplify and eliminate human error in the backup and recovery process, SonaSafe solutions also centralize the management of multiple servers and provide a cost-effective turnkey disaster recovery strategy for companies of all sizes. If the primary site goes down for any reason, the content switch transparently redirects all client traffic to the disaster recovery set of Reporting Services servers. Boston in this case), the SQL Server clusters for the primary data center and the disaster recovery site have the same name (more on this later). Your situation may be different, but this technical note should provide you with the basic framework for Reporting Services disaster recovery. Through this approach, customers can be fully assured that their disaster recovery solution will work when it is badly needed and have peace of mind. By configuring the primary data center and disaster recovery site RSDBs with identical instance names (recall that both instances are named sql4 but that they are in different domains), the manual failover is simplified because the Reporting Services servers will connect to an identically named instance of the RSDB (different domain, but same name).



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