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Articles tagged Backup

Jodie Beay and the Production Database Drift

You make an example database, like NorthWind or WidgetDev in order to test out your deployment system and the next thing you know you're worrying about constraints, backup and security. Then you add an index to the production system and feel a pang of guilt. What would the Devs say? Somehow databases take on lives of their own, populated by the lost souls of users, Developers and DBAs. Has the Redgate DLM Team's practice Forex database somehow come alive?… Read more

Cloud Storage Replication Is Not Backup

The options that you need to select when setting up an Azure Storage service account allow you to specify the durability and high-availability of your data, but they don't provide for data recovery to a point-in-time. In fact, it means that some of the bad things that can happen to data are more efficiently replicated to all copies. Backup is quite a separate issue.… Read more

Rollback and Recovery Troubleshooting; Challenges and Strategies

What happens if your database deployment goes awry? Do you restore from a backup or snapshot and lose all the data changes that have happened since then? Do you prepare rollback scripts to revert the changes whilst preserving the data? Do you branch by abstraction and toggle off the changes? Have you a blue-green deployment that can be switched? Do you quickly roll forward? … Read more

The SQL Server Sqliosim Utility

The sqliosim utility is provided with SQL Server to test the I/O stability and 'correctness' of a server. It doesn't measure performance but simulates the read, write, checkpoint, backup, sort, and read-ahead activities of a typical SQL Server instance under load. It is generally used before installing SQL Server in order to ensure that new hardware can handle your expected loads. Bob Sheldon explains.… Read more

Backup to the Cloud: The Silver Lining

Offsite backups are vital to data integrity, allowing for preservation and backup of data in catastrophic circumstances. Cloud backups have been around for a while, but are now really coming into their own. Tony Davis looks at how to get set up with cloud backups for restores and disaster recovery.… Read more

Using Optimizer_WhatIF and StatsStream to Simulate a Production Environment

SQL Server's Query optimiser judges the best query plan from the data in the relevant tables and the server's hardware. How, then, can you investigate the query plans being generated for slow-running queries on a customer's production server when you can neither access the server, nor recreate the database from a backup?… Read more

Handling Backups for Rapid Resilience

The backup and restore system in SQL Server hasn't changed a great deal over the years despite a huge growth in the typical size of databases. When disaster strikes, and an important service is taken offline while a restore is performed, there is often time to reflect on whether it might be possible to design databases for a more rapid recovery of the most critical parts of a database application.… Read more

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