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Inbound connection Error: Failed to Perform Scheduled Replication [Part 2]
Snapshot Replication on Synology delivers fast, reliable data protection by creating schedulable, near-instantaneous backups of your critical business data. It safeguards shared folders and virtual machines stored on LUNs. This ensures your data remains secure, consistent, and readily available in the event of hardware failure, accidental deletion, ransomware, or disaster. In this article, we…
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Fix Task failed to perform Scheduled Snapshot Replication
Snap Replication provides schedulable, near-instantaneous data protection. This package helps ensure that your business data located in shared folders or virtual machines located in LUNs remain safe and available in the event of disaster. Therefore, with this solution, snapshot Replication will automatically take snapshots at a pre-determined time and frequency. In this article, we shall discuss…
Pass Your Microsoft Transition Your MCTS on SQL Server
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Post has been published on http://www.varindersandhu.in/2011/05/14/understanding-of-replication/
SQL Server – Understanding of Replication
The primary purpose of replication is to distribute data from a master database to one or more secondary databases. Because Replication maintains a duplicate copy of data in synchronization with the master copy, the technology can be used to provide availability for application.
Type of Replication
Snapshot
Transactional
Merge
Snapshot Replication
Snapshot Replication takes the entire set of data and sends it during the each cycle of replication. This is full copy of data that is sent by Publisher to subscriber.
Transactional Replication
Users obtain complete initial copies of the database and then obtain periodic updates as data changes.
We can configure transactional replication with two optional modes:
Immediate updating subscriber
Queued updating subscriber
Transactional Replication can be deployed in two alterative architectures:
Bidirectional transactional replication
Peer-to-peer transactional replication
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Merge Replication
In merge replication received the data from two or more publishers is combined into a one subscriber.
Data Conflicts
Data conflicts can occurs within any environment that enable distributed processing of transaction.
Type of Conflicts
Three type of conflicts can occurs
The insertion of a duplicate prinmary key on both publisher and subscriber
A conflicting update same row at both publisher and subscriber
An update of a nonexistent row
For more detail go to
http://msdn.microsoft.com/en-us/library/ms151198.aspx
http://msdn.microsoft.com/en-us/library/ms151215.aspx
