BARBARIN DAVIDSQL Server Senior ConsultantPragmantic SA

SQL Server Denali :New administration features

David BARBARIN david.barbarin@pragmantic.com

SQL Server Senior Consultant at Pragmantic SA Collaborative solutions Business solutions Data Management and Business Intelligence

SQL Server Denali becomes SQL Server 2012

Installation enhancements

Smart setup : during installation update can be downloaded

Compatibility with Windows Core : it’s now possible to install SQL Server on Windows Core edition

Installation enhancements

Manageability enhancements

SQL Server Management Studio

New interface is now based on the Visual Studio 2010 shell

SSMS is improved by enhancements to tools and monitoring features

Two keyboard shortcut schemes (Visual Studio 2010 compatible mode or shortcut from SQL Server 2008 R2)

SSMS

Point-in-time restore has been improved by the addition of a visual timeline that allows you to identify a feasible point in time as a target time for a database restore operation

Page Restore is available with GUI mode

SSMS

Database Engine startup options are now configured by using a new Startup Parameters tab of SQL Server Configuration Manager

Windows PowerShell is no longer installed by SQL Server Setup. The sqlps utility that is used to run Windows PowerShell (V2) sessions that include the SQL Server snap-ins

SSMS

New and modified management views

sys.dm_exec_query_statssys.dm_os_volume_statssys.dm_os_windows_infosys.dm_server_memory_dumpssys.dm_server_servicessys.dm_server_registry

SSMS

Overview of SSMS and tools

demo…

High Availability and Performance Enhancements

Always On

With the previous versions of SQL Server we can achieved high availability and disaster recovery by using :

failover clusteringdatabase mirroringlog shipping peer-to-peer replication Combination of the above technologies

Always On

Always On

Always On

The existing solutions can achivied our goal but have drawback :

Mirroring is one-to-one mapping making multiple secondaries unattainable. Log shipping does not provide zero failureCluster topology have a SPOF (shared storage)Passive servers in the above solutions are not used to their full potential

Always On

An integrated solution called AlwaysOn

Always On Avaibility Groups are used for database protection and offer :

Multi-database failoverMulti secondariesActive SecondariesIntegrated HA Management

Always On

Always On

Overview of Always On

demo…

High Availability and Performance Enhancements

Failover Clustering

Multi subnets are supported by SQL Server 2012

Tempdb database can be hosted locally on each node server

There is no longer the limit of 23 SQL Server instances on a consolidated failover cluster by the introducing of the SMB support

Failover Clustering

High Availability and Performance Enhancements

Indexes

There are no longer limitations with LOB for online rebuild

Introduction of columnstore indexes : They can be used to significantly speed-up the processing time of common data warehousing queries.

Columnstore indexes group and store data for each column and then join all the columns to complete the whole index. This differs from traditional indexes which group and store data for each row and then join all the rows to complete the whole index.

Indexes

Indexes

Columnstore index storage allow to minimize I/O

Compression is more efficient

Index rebuild with LOB data and columnstore indexes

demo…

High Availability and Performance Enhancements

Indirect CHECKPOINT

Checkpoint is used to flushed dirty pages on the disk

Reduce the recovery time. Checkpoint is triggered by differents events.

The recovery intervall is a server level parameter

Indirect checkpoints can be configured by database with ALTER DATABASE … SET TARGET_RECOVERY_TIME

Indirect checkpoint

High Availability and Performance Enhancements

Data Tuning Advisor

Plan cache option is now available as a option in Database Engine Tuning Advisor (DTA) workload.

We don't need trace files/tables or manual workload, just we can use query plan cache which will select top 1,000 events for the analysis

Data Tuning Advisor

Security Enhancements

New Role Management

Possibility to create user defined server roles

The system stored procedures sp_addsrvrolemember and sp_dropsrvrolemember are now deprecated. Use instead ALTER ROLE MEMBER

New Role Management

Manage server role members

demo…

Security Enhancements

Provisioning During Setup

To enhance role separation, BUILTIN\administrators and Local System ( NT AUTHORITY\SYSTEM) are not automatically provisioned in the sysadmin fixed server role.

SQL Server now supports Managed Service Accounts and Virtual Accounts when installed on Windows 7 or Windows Server 2008 R2

Provisioning During Setup

Configure a management account for the SQL Server service

demo…

Security Enhancements

Contained databases

Includes all database settings and metadata required to define the database and has no configuration dependencies on the instance

Fully contained database vs Partially contained database

Contained database users and Windows principals

Contained databases

Overview of a contained database

demo…

Security Enhancements

Encryption

New hashing algorithms availableSHA2_256 and SHA2_512

Certificats 4096 bytes against 3456 bytes in earlier versions

Master keysEAS algorithm against 3DES in earlier versions

Encryption

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