June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
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AlwaysOn Availability Groups
Also new in SQL Server 2014 is the Availability Group capability. This is focused on database-level failover and availability by utilizing a data redundancy approach. Again, borrowing on the database mirroring experience (and underlying technologies), a transactionally consistent secondary replica is made that can be used for both read-only access (it is active for use at all times) as well as for failover if the primary database (primary replica) fails for any reason. In Figure 42.8, you can see a SQL Server AlwaysOn Availability Group being utilized for HA and even for distributing the read-only workload off of the primary SQL Server instance to the secondary replica. You can have up to four secondary replicas in ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.