Dell PowerEdge External Media System 1634 Using Manual - Page 16
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Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn
Availability Groups
of 5-10 seconds based on a different range of tests to successfully failover to the other nodes and re-
establish availability.
Summary
AlwaysOn Availability Groups is a new HADR feature designed to meet ever-increasing RTO and RPO
requirements. It is aimed to provide more granular control to achieve HA and DR of the SQL databases.
th
Dell 12
Generation PowerEdge servers provide the right platform for implementing the AVGs by
supporting the tremendous processing power with E5 series processors, large memory (with 1600Mhz
DIMMS) and high performing local storage. Dell PowerEdge servers and their close integration with a
variety of storage platforms make an outstanding platform for implementing AVGs with FCIs.
Suited for deployment in a wide variety of environments, SQL Server 2012 AVG provides the customer
with a high level of flexibility. The robust and reliable nature of Dell PowerEdge servers makes them a
good choice for AVG implementations. The major common types of AVG implementations discussed are
as below.
Non-shared Storage implementations: The PowerEdge R720xd provides a unique single server
platform for deploying AVG, with great internal capacity and high processing power. This
configuration can benefit the SMB customers who cannot invest more on SAN.
Shared Storage Implementations: Together with the wide variety of external storage solutions
available from Dell (such as Compellent, EqualLogic, and PowerVault), the PowerEdge servers
provide an enterprise level server and storage combination for deploying AVG on shared
storage.
PCIe SSD Advantage: With PCIe based SSDs on Dell PowerEdge servers (eg. R720, R820),
customers can enjoy high performing and cost effective HA and DR solutions. These
configurations achieve fast failover capabilities for the AVG databases.
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