What’s in Windows Server 2012 for SQL Server N.Raja / James Crawshaw Technology Specialists -...

What’s in Windows Server 2012 for SQL Server N.Raja / James CrawshawTechnology Specialists - Microsoft

DBI332

Agenda

SMB for SQL Microsoft SQL Server database storage Microsoft SQL Server databases on SMB file shares Windows Server 2012 SMB File Server enhancements

Scale-Out File Server for application data Hyper-V Enhancements for SQL Server Summary & QA

SQL Server HA Options

Database Mirroring

Logical RecoveryStandby

Log Shipping

Log Shipping with Restore Delay

ProductionDatabase

Replication

Clustering

Database Mirroring

Primary disaster site for databases

Log Shipping

Additional disaster sites for databases

Logical recovery

Replication

Database reporting and read scale out with redundancy

Clustering

Local server redundancy

Always On Storage Partner Solutions

Site storage HA

Highest hardware reliability

WarmStandby

HotStandby

Backup

DatabaseScale Outfor Queries

SQL Server HA OptionsAlways On

Synchronous data

movement

Asynch

ronou

s dat

a

mov

emen

t

AG

AG

AG

AG_Listener

HIGHER PRODUCTIVITYSingle solution to manage; Availability Groups for Clustering, Mirroring, Log Shipping, and Diagnostics

Wizards for easy set up; dashboards for visibility

GREATER UPTIME & H/W USEMultiple, active secondaries

Multi-database failover

Faster connections and page repair

Offload & distribute workloads to secondaries

ADDITIONAL BENEFITSScale on demand; distribute workloads across readables

Performance gains by shifting workloads off primary to secondaries, including backups

And more from Windows Server 2012 Now……

Unified HA Solution

SQL Server Database StorageCurrent OptionsDirect Attached Storage (DAS)

Storage system directly attached to SQL ServerGood performanceCreates storage islands

Storage Area Network (SAN)

Dedicated network providing access to consolidated block level storageIncrease storage capacity utilizationDedicated, non-shared virtual disks

SQL Server

SQL Server

SQL Server

Disks Disks Disks

SQL Server

SQL Server

SQL Server

Disks

Storage Area Network (FC / iSCSI)

SQL Server Database StorageNew storage option

Shared network providing access to consolidated file level remote storageHigh performanceHighly availableSimpler management

Manage SMB file shares instead of SAN storage (LUNs and zoning)Dynamic server/service relocationDatabase storage operations within one organization

Reduce SQL Server solution complexity

SMB File Shares

SQL Server

SQL Server

SQL Server

Scale Out File Server

Disks

File Access (SMB)

Block Access

Storing Databases on File Servers

Traditional use of file servers

ScenariosDocument repositories and sharingUser file storage

CharacteristicsHigh volume/IO ratioMostly full file writesNot typically IO bound

Storing Databases on file servers

ScenariosOnline Transaction ProcessingData Warehouse

CharacteristicsHigher IO/volume ratioMostly write-in-placeMore likely to be IO boundMay have areas of great activity (hotspots)

Why Would You Do This, Anyway?

Why Not?Historically, SMB file shares have been perceived as having:

Unreliable connectionsPoor performanceUnreliable storage behind the file serverLack of integrity guarantees

The world has changed

One possible reason… Simpler Database Migration

Storage Area NetworkTake database offlineFile request to remap SAN diskMeet with storage adminUnmap SAN disk from original serverMap SAN disk to new serverSAN disk discovered and mounted on new serverDatabase is attached to new serverDatabase is brought online

SMB File SharesVerify correct permissions on the share(s)Detach database (takes it offline)Attach database on new server using UNC path (brings it online)

Changes to Microsoft SQL Server

SQL Server 2008 R2Formalized support for storing user databases on SMB file shares (removed traceflag requirement)Integrated SMB scenarios into automated test infrastructure and labs

SQL Server 2012Added support for SQL Server clusters using SMB file shares

Adds flexibility to cluster configurationsRemoves the drive-letter restriction for cluster groups

Added support for System DB on SMB file sharesRoot of the installation can now be on the share

Windows fix for improved performance (253493)Significantly improves performance for OLTP workloads on Windows Server 2008 R2

Typically … Failovers are not transparent

Targeted for traditional file server use scenariosServer applications expect storage to be continuously availableIn Windows Server 2008 R2

Connection and file handles are lost on share failover, leading toApplication disruptionAdministrator intervention required to recover

File Server Cluster

Node A Node B

\\fs1\share

1

2\\fs1\share

3

SQL Server

Failover share and connections and handles lost

2

Normal operation1

Administrator intervention needed to recover

3

Hyper-VHyper-VHyper-VHyper-VHyper-VHyper-V

Hyper-V & SQL over SMB3What is it?

Store Hyper-V files in shares over the SMB 3.0 protocol(include VM configuration, VHD files, snapshots)Works with both standalone and clustered servers (file storage used as cluster shared storage)

HighlightsIncreases flexibilityEases provisioning, management and migrationLeverages converged networkReduces CapEx and OpEx

Supporting FeaturesSMB Transparent Failover - Continuous availabilitySMB Scale-Out – Active/Active file server clustersSMB Direct (SMB over RDMA) - Low latency, low CPU useSMB Multichannel – Network throughput and failoverSMB Encryption - SecurityVSS for SMB File Shares - Backup and restoreSMB PowerShell - Manageability

File Serve

r

File Serve

r

SharedStorage

Hyper-V

SQLServe

r

IIS

VDIDeskt

opHyper-V

SQLServe

r

IIS

VDIDeskt

opHyper-V

SQLServe

r

IIS

VDIDeskt

op

Hyper-V Cluster

File Server Cluster

demo

What is our demo environment?

Setting it all up

File Server Cluster

SMB Transparent Failover

Failover transparent to server application

Zero downtimeSmall IO delay during failover

Supports planned and unplanned failovers

Hardware/software maintenanceHardware/software failuresOS restartLoad balancing

Resilient for both file and directory operationsRequires:

Windows Server 2012 Failover ClusterSMB Client with SMB 3.0File shares configured with Continuously Availability property

Failure occurs - connections and handles lost,temporary stall of IO (seconds)

2

Normal operation1

Connections and handles auto-recoveredApplication IO continues with no errors3

1 3

Node A Node B

\\fs1\share

\\fs1\share2

SQL Server

SMB Multichannel

Preliminary results using four 10GbE NICs simultaneously

Linear bandwidth scaling 1 NIC – 1150 MB/sec2 NICs – 2330 MB/sec3 NICs – 3320 MB/sec4 NICs – 4300 MB/sec

Leverages NIC support for RSS (Receive Side Scaling)

Bandwidth for small IOs is bottlenecked on CPU

512

1024

4096

8192

1638

4

3276

8

6553

6

1310

72

2621

44

5242

88

1048

576

0

1000

2000

3000

4000

5000

SMB Client Interface Scaling - Throughput1 x 10GbE 2 x 10GbE 3 x 10GbE 4 x 10GbE

I/O SizeM

B/s

ec

** Preliminary Results **Windows Server “8” Developer Preview

Data goes all the way to persistent storage. White paper provides full details.

See http://go.microsoft.com/fwlink/p/?LinkId=227841

http://go.microsoft.com/fwlink/p/?LinkId=227841

SMB Direct Performance Preliminary results based on Windows Server 2012 RC

Configuration BWMB/sec

IOPSIOs/sec

%CPUPrivileged

RDMA (SMB Direct) 10,900 83,400 8

Local Storage 11,200 85,500 5

ConfigurationBW

MB/secIOPS

IOs/sec

%CPUPrivilege

d

RDMA (SMB Direct) 4,550 555,000 55

Local Storage 4,870 595,000 29

Workload: 128KB IOs, 4 threads, 64 outstanding

Workload: 8KB IOs, 16 threads, 48 outstanding

Windows Server 2008

R2

VMware vSphere 5

Windows Server 2012

250,000 IOPs

300,000 IOPs

1,000,000+ IOPs

Industry Leading IO Performance• VM storage performance on par

with native• Performance scales linearly with

increase in virtual processors• Windows Server 2012 Hyper-V

can virtualize over 99% of the world’s SQL Server.

Hyper-V: Over 1 Million IOPs from a Single VM

Agenda



Clustered File Server

SMB Scale-Out File Server

New clustered file serverTargeted for server app storageKey capabilities:

Scale-out file shares (active-active)CHKDSK with zero downtimeClustered Shared Volumes block cacheSimpler management

Requires:Windows Server 2012 Failover Cluster with Clustered Shared VolumesSMB Client with SMB 3.0File shares configured with Continuously Availability property

Application Servers

Single File System Namespace

Cluster Shared Volumes

Single Logical File Server (\\fs\share)

Data Center Network

(Ethernet, InfiniBand or combination)

SMB PerformanceFundamental gains for server applications

Windows Server 2012 at 98% of local storage transactional performance

Identical servers and storage1Gbps Ethernet v. 4Gbps FC22 x 10KRPM HDD

Network transport optimizationsTCP/IP – SMB multi-channel & NIC Teaming, TCP offloads, DC-TCPRDMA – Lowest network CPU overhead (cycles/byte)

SMB SMB + DAS0

50010001500200025003000350040004500

1175 (27%)

4270 (98%) 4315 (100%)

SQL transactions/s

SMB PerformancePerformance tuning and debug

Enabling SQL DBAs to use existing skills to tune performanceSMB Client counters track per-share load

IO size/latency/queue length etc.Separately tune/target log file vs. data file performance

SMB Server counters track per-client load

Rebalance of loadDiagnose rogue clients

SMB Client View

SMB Server View

demo

Managing SQL Server databases on SMB file shares

Distributed Network Name (DNN)

Client Access Point (CAP) for a Scale-Out File Server DNS Name on the networkSecurity

Creates and manages computer object in ADRegisters credentials with LSA on each node

DNSRegisters the CAP with DNS

Registers node IP address for all nodes Does not use virtual IP addresses

DNN updates DNS whenDNN resource comes online and every 24 hoursA node is added or removed to/from clusterA cluster network is added or removed as a client networkIP address changes

If not using dynamic DNS, you must manually add the DNS records with the node IPs for the cluster networks enabled for client access for each node

> smbsofs33Server: stb-red-dc-01.stbtest.microsoft.comAddress: 10.200.81.201

Non-authoritative answer:Name: smbsofs33.ntdev.corp.microsoft.comAddresses: 2001:4898:0:fff:0:5efe:10.217.108.49 2001:4898:0:fff:0:5efe:10.217.108.103 2001:4898:0:fff:0:5efe:10.217.108.148 10.217.108.148 10.217.108.49 10.217.108.103

IPs on same subnet. One

for each node.

Client Redirection

SMB Clients are distributed at initial connect through DNS Round RobinSMB Clients are not redistributed automaticallySMB Clients connected to a Scale-Out File Server can be redirected to use a different cluster node

Scale-Out File Server Cluster

Node A Node B

1

SQL Server

W WNode C

W

Witness communication

SMB communication

1

Get-SmbWitnessClient | FL ClientName, FileServerNodeName, WitnessNodeNameClientName : SQLServerFileServerNodeName : AWitnessNodeName : B

Move-SmbWitnessClient –ClientName SQLServer –DestinationNode C

3

In ReviewSQL databases on SMB file shares

Shared network providing access to consolidated file level remote storageHighly available storageHigh performanceReduce SQL Server solution complexityReduce acquisition costs

Leverage commodity componentsLeverage existing network investments

Reduce operational costsSimpler managementLeverage existing people investment

Agenda



Microsoft Hyper-V Server 2008 R2 SP1->2012MS Hyper-V Server 2008 R2 SP1 Microsoft Hyper-V Server 2012

Release Date: August 2011 Oct-26-2012

Cost: Free Download from:www.microsoft.com/hvs

Free Download from:www.microsoft.com/hvs

Physical Processor Support: Up to 8 processors(no core limitations)

Up to 64 processors(no core limitations)

Physical Memory Support: Up to 1 TB per server Up to 4 TB per server

Virtual Processors Up to 4 per VM Up to 64 per VM

Virtual Machine Memory Support: 64 GB of memory per VM(no memory tax)

1 TB of memory per VM(no memory tax)

Live Migration/High Availability: Yes Yes

Live Storage Migration: No Yes

Shared Nothing Live Migration: No Yes

RemoteFX: Yes More monitors, more resolutions

Storage Spaces: No Yes

VMs on File Based Storage No YesCustomer Driven: More Features, Scale, Availability, Mobility in every

release.

Hyper-V ReplicaUnlimited Replication

Disaster Recovery Scenarios:

Planned, Unplanned and Test Failover

Pre-configuration for IP settings for primary/remote location

Key Features:

RPO/RTO in minutes

Seamless integration with Hyper-V and Clustering

Automatically handles all VM mobility scenarios (e.g. Live migration)

Supports heterogonous storage between primary and recovery

Integrates with Volume Shadow Services (VSS)

[SCIM329] Enabling Disaster Recovery for Hyper-V workloads using Hyper-V Replica

LEARN MORE

demo

Hyper-V Replicafor applications

Key Hyper-V Replica Takeaways

Easy to SetupVia wizardOr, via PowerShell

Works with your current hardwareAll you need is two connected servers running Windows Server 2012No Guest Dependencies

Agenda



SQL Server & Windows Server – Your HA Options

Synchronous data

movement

Asynch

ronou

s dat

a

mov

emen

t

AG

AG

AG

AG_Listener

And more from Windows Server 2012 Now……

• Storage Spaces (JBOD)

• Continuously Available File Server (SMB)• SQL Database on SMB

• Transparent Failover when FS fails

• MultiChannel Throughput Advantage (& RDMA)

• Skill Set (All you need to learn is Windows)

• Hyper-V Replica (For DR & Others)

• Live Migration• Over Different Subnets without changing any config

• Shared Nothing Live Migration (across Clusters!)

Unified HA Solution

© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the

part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Key Advantages over VMware vSphereCapability Resource Windows Server

2008 R2 Hyper-VWindows Server 2012 Hyper-V

VMware vSphere5.1 Ent Plus

Scalability, Performance, Density

Active Virtual Machines Per Host 384 1,024 512

Memory Per Virtual Machine 64 GB 1 TB 1 TB

Virtual Processors Per Virtual Machine 4 64 64

Maximum Nodes Per Hyper-V Cluster 16 64 32

Maximum Virtual Machines per Hyper-V Cluster 1,000 8,000 3,000

SR-IOV with Live Migration Support No Yes No

Storage

Native 4KB Disk Support No Yes No

Maximum Virtual Disk Size 2 TB 64 TB 2 TB

Encrypted Cluster Storage No Yes No

Secure Multitenancy

Open Extensible Switch No Yes Closed

Resource Metering No Yes Chargeback Req.

Flexible Infrastructure

1GB Simultaneous Live Migrations 1 Unlimited 4

10GB Simultaneous Live Migrations 1 Unlimited 8

Live Storage Migration No Yes Yes

Shared Nothing Live Migration No Yes Yes

Network Virtualization No Yes VXLAN Req.

High Availability

Virtual Machine Replication Yes Yes Yes

Guest OS Application Monitoring No Yes API Only

Guest Clustering with Live Mig & Dyn Memory Yes Yes No

What’s in Windows Server 2012 for SQL Server N.Raja / James Crawshaw Technology Specialists -...

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