Sameer Dandage

Sameer
Dandage

Sameer Dandage is a consultant with HTC Global Services. He is an MCDBA and a SQL Server DBA with more than five years of SQL Server experience.

Articles
Preparing Disaster Scenarios
How to prepare your transactional-replication setup for a disaster.
After the Crash 1
Transactional replication with queued updates (TRQU) can be a useful way to replicate data if you can tolerate some latency. Sameer Dandage examines the intricacies of backing up and restoring TRQU setups.
Login Security for TRQU

In transactional replication with queued updates (TRQU), the Distributor needs to connect to the Publisher and Subscriber. For security, the replication agents use a special SQL Server login that SQL Server creates during the replication setup for this purpose. This login, distributor_admin, has sysadmin permissions on all SQL Server instances involved in the replication process. You can see this login in the sysxlogins table on all servers.

Looking Under the Hood

Maintaining multiple database servers at multiple sites in active mode and closely synchronizing copies of the data on all servers is a challenge for any DBA. But as long as you can tolerate a little latency, one good option for keeping your data current at all locations is to use SQL Server’s transactional replication with queued updates (TRQU). In the first article in this series, “Queuing Up,” December 2003, InstantDoc 40567, I showed how to set up TRQU.

Queueing Up
If you need to maintain multiple database servers at multiple sites and synchronize all the data, SQL Server has a solution to make your job easier--SQL Server’s Transactional Replication with Queued Updates can help.
Stay in Control 1
Keep your complex software-development projects in check by building a version-control system that uses Enterprise Manager and Visual SourceSafe.

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From the Blogs
May 18, 2015
blog

AlwaysOn Availability Groups and SQL Server Jobs, Part 24: Synchronizing SSIS Packages

In my previous post I covered options for adding “If-checks” into SSIS Packages – or SQL Server Maintenance Plans (which are, effectively, specialized SSIS packages). Once you’ve tackled that process, you’ll need to tackle something else when it comes to managing SSIS packages in conjunction with AlwaysOn Availability Groups. Or, more specifically, you’ll actually need to tackle two tasks....More
May 13, 2015
blog

AlwaysOn Availability Groups and SQL Server Jobs, Part 23: Maintenance Plan Backups and SSIS Packages

In my last post, we took a look at some of the details involved in actually implementing backups against databases being hosted in AlwaysOn Availability Groups. In addition to providing a high-level overview of how sys.fn_hadr_backup_is_preferred_replica() works, I also mentioned that integrating it into backups managed by SQL Server Maintenance Plans isn’t as easy as what you’ll run into with other types of backups....More
Apr 28, 2015
blog

AlwaysOn Availability Groups and SQL Server Jobs, Part 22: Executing Backups

Ultimately, there are a number of ways that DBAs can regularly create backups of their databases. Some of the more common options for managing backups include:...More
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