Dell PowerEdge External Media System 1434 Using Manual
Dell high availability and disaster recovery solutions using microsoft sql server 2012 alwayson
Hide thumbs
Also See for PowerEdge External Media System 1434:
- Manual (29 pages) ,
- Owner's manual (165 pages) ,
- Configuration (16 pages)
Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Dell PowerEdge External Media System 1434
Summary of Contents for Dell PowerEdge External Media System 1434
- Page 1 Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups Dell servers and storage options available for AlwaysOn Availability Groups deployment. Gopu Narasimha Reddy Dell Database Solutions Engineering...
- Page 2 The content is provided as is, without express or implied warranties of any kind. © 2012 Dell Inc. All rights reserved. Dell and its affiliates cannot be responsible for errors or omissions in typography or photography. Dell, the Dell logo, PowerVault, and PowerEdge are trademarks of Dell Inc.
-
Page 3: Table Of Contents
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups Contents Executive summary ....................... 4 Introduction ........................ 4 Objectives........................ 5 Why Dell server and storage hardware for AlwaysOn setup? ............ 5 Processors ......................5 Memory ........................ 5 Internal storage (HDD and SSD) ................... -
Page 4: Executive Summary
AVG will be illustrated by a review of some of the possible user scenarios. We will also discuss how PowerEdge Servers can be combined in a variety of server and storage configurations that make Dell the right platform for deploying Microsoft AlwaysOn HA and DR solutions. -
Page 5: Objectives
AlwaysOn AVG databases. The Dell PowerEdge R720/R820 supports up to 4 front loading 2.5-inch PCIe SSD drives. This innovative server architecture allows the deployment of high performing AVG databases on PCIe SSD drives of the... -
Page 6: Introduction To Microsoft Sql Server 2012 Alwayson Availability Groups (Avg)
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups The PowerEdge R720 supports up to 7 PCIe slots and offers an interface for several available storage categories such as fiber channel, iSCSI and Direct Attached Storage (DAS), making possible the installation of applications that require high-bandwidth on the same system. -
Page 7: Most Common Ha And Dr Deployments For Sql Databases
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups Asynchronous-Commit Mode: The primary replica commits the transaction without waiting for an acknowledgement from the secondary replicas that are configured for Asynchronous-Commit mode. This mode minimizes the transaction latency, but might cause Asynchronous-Commit mode replicas to lag behind the primary replicas. -
Page 8: Dell Reference Configuration For Avg
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups site. This setup can be replaced by FCI for HA and AlwaysOn Availability Groups for DR. This setup is a right choice for SMB and Enterprise customers who can invest to some extent in SAN implementations. -
Page 9: Major Advantages And Limitations Of Implementing Avg On Non-Shared Storage
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups The Dell H710 mini-integrated PowerEdge RAID Controller (PERC) card can be used efficiently to manage internal storage of the server. The H710P mini-card is designed for enhanced performance, increased reliability, and simplified management. -
Page 10: Avg Deployments On Shared Storage
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups Limitations: Limits on storage scalability. No enhanced SAN capabilities. AVG deployments on shared storage In addition to the failover capability provided by AlwaysOn Availability Group, we may also set up a secondary layer of availability at the server instance level. -
Page 11: Figure 3. Scenario 1 : Sql Server Fci With Avg On Shared Storage
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups Figure 3. Scenario 1 : SQL Server FCI with AVG on shared storage In Figure 3, Node1 and Node2 are deployed in the primary site providing HA for the databases with the FCI (namely, SQL FCI1). -
Page 12: Figure 4. Scenario 2 : Sql Server Fci With Avg On Shared Storage
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups Figure 4. Scenario 2 : SQL Server FCI with AVG on shared storage The advantage of the setup described within Figure 4 is, with the help of the read-only routing list, we may redirect or offload all read-only requests to Node3 and thereby reduce the overhead on the primary replica. -
Page 13: Figure 5. Creating Avg With Fci
Dell High Availability and Disaster Recovery Solutions Using Microsoft SQL Server 2012 AlwaysOn Availability Groups We validated the configuration outlined in Figure 4 using four PowerEdge R720 servers. Figure 5 shows the replica configuration window of the New Availability Group wizard. -
Page 14: Advantages And Limitations Of Implementing Avg On Shared Storage
Benefits Dell™ PowerEdge R720 and R820 servers support up to four 2.5-inch 350G front-access PCIe SSDs drives. Figure 7 shows a possible deployment of AlwaysOn Availability Groups on the PCIe SSDs drives of Dell PowerEdge servers. Figure 7. AVG deployments on SSD and HDD... -
Page 15: Advantages And Limitations Of Implementing Avg On Hybrid (Ssds And Hdds) Storage
SQL server flexible failover polices and diagnostics, refer http://msdn.microsoft.com/en-us/library/ff878664.aspx Dell conducted a variety of tests to determine how effectively WSFC and SQL Server work together to identify the failover condition and take appropriate action. We observed that an AVG took a maximum... -
Page 16: Summary
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.