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Transcript of Get More out of SQL Server 2012 in the Microsoft Private Cloud environment Guy BowermanMadhan...
Get More out of SQL Server 2012 in the Microsoft Private Cloud environment
Guy Bowerman Madhan [email protected]@microsoft.com
DBI208
Madhan Arumugam
Lead Program ManagerAreas: SQL Server Memory Management, scale up, virtualization/consolidationBefore MS: Software Engineer at Intel Corp, Cache coherencyGrew up in India, currently based at Redmond, USA
Guy Bowerman
Senior Program ManagerAreas: SQL Server and SQL Azure Multi-tenancy, SQLOS, VirtualizationBefore MS: Cloud/Virtualization Architect at IBM (Informix)Grew up in UK, currently based at Redmond, USA
What you’ll get out of this session
Understand SQL Server 2012 capabilities for Private cloudLearn about the best practices to optimize SQL 2012 in Private cloud deploymentsInformation about SQL Server 2012 Licensing for private cloud
Journey to cloud
Low Control
Shar
edLo
wer
cos
tD
edic
ated
Hig
her c
ost
High Control
Hybrid Cloud
Physical
Virtual
PaaS
SaaS
IaaS
On premises
Off premises
Private cloud. The cloud infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on premise or off premise.
Journey to cloud - SQL Server Cloud Continuum
Low Control
Shar
edLo
wer
cos
tD
edic
ated
Hig
her c
ost
High Control
100% Compatibility Rapid self-service provisioning
SQL Server in WA VM - IaaS Virtualized Machine
SQL Server Physical Machine (raw iron)
Full h/w controlRoll-your-own HA/DR/scale
Managed database serviceFocus on business logic
Virtualized DatabaseWA SQL Database - PaaS
Elastic/Self-Service capabilities Full h/w control
SQL Server Private Cloud - IaaS Virtualized Machine
Fastest Time to Solution
Good Better Best
Performance at Scale
Component Flexibility
Fastest Time to Solution
Good Better Best
Performance at Scale
Component Flexibility
Fastest Time to Solution
Good Better Best
Performance at Scale
Component Flexibility
Self-Build Reference Architecture Appliance
Private Cloud – Deployment options
Private Cloud Reference Architecture http://social.technet.microsoft.com/wiki/contents/articles/4346.private-cloud-principles-patterns-and-concepts.aspx
Private Cloud - Deployment patterns
Self-ServiceVM TemplatesVM-level HA
Centralized IT ServicesCentrally managed databasesLarge VMsApp level HA
Optimize for Uptime Optimize for Time to Solution
Private Cloud – what and why
SQL Server 2012 capabilities to improve efficiency
• Support for Dynamic Memory
• RDBMS Memory management
• Scale up
Support for Dynamic Memory
Hyper-V feature - Dynamically assign memory to VMs based on current need
Additional memory appears as Hot-Add memory to guest OSUses Ballooning when taking away memory
Virtual device driver in guest VM allocates memory and returns it to host
Decreases VM configuration complexity and Improve Elasticity SQL Support
SQL 2005-2008 R2 SQL Server 2012
32-bit requires –h startup option & AWE enabled
64-Bit Support Only
Great for Self Service pattern
SKU Dynamic Memory
Express -
Workgroup -
Standard -
Enterprise
SKU Dynamic Memory
Express -
Web (SPLA)/VM
Standard/VM
Enterprise
demo
SQL Server 2012 with Hyper-V Dynamic Memory
SQL/Dynamic Memory GuidelinesHyper-V / VMM DM Params
Recommendations
Startup RAM 1GB + SQL Min Server Memory (if set)In unplanned failover scenariosthe total amount of Startup Memory combined (both local to the host and virtual machines to be failed over) should be lower than the total physical memory minus the host reserve memory
Maximum RAM >SQL Max Server Memory (if set)
• Leave SQL max server memory setting to default; If live migrating SQL/VMs, use max server memory to reduce SQL memory consumption prior to migration
• If using Dynamic memory, configure SQL to use Lock pages in memory• Perf counters to monitor:
• SQL Server: Memory Manager -Database Cache Memory (KB), Free Memory (KB), Total Server Memory (KB), Buffer Manager\Page Writes/sec + Page Reads/sec. Hyper-V Dynamic Memory Balancer – Available Memory, Hyper-V Dynamic Memory VM – Physical Memory (for each VM)
Running SQL Server with Hyper-V Dynamic Memory - http://msdn.microsoft.com/en-us/library/hh372970.aspx
RDBMS Memory managementMemory manager re-architected to improve performance/scale and easier capacity planning. ‘Max server memory’ a more precise sizing mechanism
OS
Bufferpool (8K allocations)
CLR, DWA, TS, >8K allocations
OS
All size page allocations + CLR
DWA, TS
Mem
ory
allo
cati
ons
wit
hin
sq
lserv
r pro
cess
space
Mem
ory
allo
cati
ons
wit
hin
sq
lserv
r pro
cess
space
Max s
erv
er
mem
ory
DWA – Direct Windows Allocations TS- Thread stacks
Max s
erv
er
mem
ory
SQL 2008 R2 and before SQL 2012
Best Practices sizing SQL (updated for SQL 2012)
‘max server memory’ Can be set on dedicated server/VM. Leave enough room for OS and SQL worker thread stacks (2MB on x64)Also set if you are running multiple SQL instances in a large VMNeeds to be set if using large page model (T834)
‘min server memory’ can be set to guarantee some necessary amount of memory, or to essentially make the memory model static
Pay attention to virtual NUMA in Windows Server 2012 and affinitize cores along the vNUMA boundaries for best performance
Scale upSQL Scale up on Win Server 2012
Native Support for 640 logical processors and 4TB RAM SQL Virtualization on Win Server 2012 Hyper V
Great for centralized IT
services pattern
> 1 million IOPS from a single VM
SQL Server 2012 Multi-tenancy capabilities
Resource Governor: 64 Resource Pools (up from 20)• Multi-tenant Isolation • Increase application density
Resource Governor: Max cap on CPU usage• Predictable CPU usage for chargeback• Isolation from system tasks
Resource Governor resource pool affinity• Simple partitioning of physical resources• Predictable resource allocation
Great for centralized IT
services pattern
Resource Governor overview
Classification
DefaultGroup
Group 2Group 1 Group 2Group N…
Attributes
UDF
Pool 1Internal pool Pool 62 Default pool
Requests
…
Background tasks, DAC
connections
demo
Resource Governor in SQL Server 2012
SQL Multi-tenancy best practicesUse Resource Governor within larger VMs Create VM templates that represent a balanced resource configuration (small, medium, large)Know your SQL workload profile before deciding to overcommit a particular resource dimension (CPU, memory, IOPS)Most often investing in more physical memory and giving more RAM per VM gives you the best ROISequential IO within VM may end up being random IO at host level, so optimize IO subsystem for Random IODisk placement less important for consolidated storage Use dynamic VHD unless constrained by I/O subsystem
SQL Server 2012 HADR capabilities
Always On• Multiple Active Secondaries Improves utilization by
offloading read/maintenance work (backup)• Much more performant than DBM• Availability Groups : Application centric multiDB HADR
over non shared storage with faster/reliable application recovery
Improvement HW/SW Recoverability• Geo Cluster Multi-subnet Support enables DR• sp_server diagnostics : comprehensive SQL
health status• Hardware Memory scrubber support
Great for centralized IT
services pattern
SQL 2012 AlwaysOn HA/DRCareGroup Healthcare Systems
Sync
ASync
Windows 2008 R2 Hosts Cluster
Windows 2008 R2 Guest Cluster
Availability Group: BillingSys
Pri
mary
Sit
eD
R S
ite
Denali_A Denali_B
Denali_C
Pri
mar
y
Hyper-VNode BHyper-V
Node A
Node C
Extreme High
Availability
HW & OS Failure ProtectionOS & SQL Failure ProtectionDisk & DB Failure Protection
Hyper-V Live Migration
Windows 2008 R2 Host Cluster
Memory SyncConfiguration DataMemory Content
CSV
Denali_A
Denali_B
Denali_A
User still
connected
without
interruption
Sync Availability Group: BillingSys
Sync AG: BillingSys
Denali_A
Hyper-VNode B
Hyper-VNode A
Denali_B VHD (in Cluster Shared Volume)
Denali_A VHD (in Cluster Shared Volume)
SQL HADR Best Practices
Use highly available VM in Hyper-V to make HA built-in for self-service patternAlwaysOn Availability Groups (AG), together with host clustering and guest clustering provides extreme HAAlwaysOn AG for unplanned failoverLive migration for planned failover
Live migration enhancements in Win8
sp_server_diagnosticsCaptures diagnostic data and health information about SQL Server service to detect potential failures after analyzing internal system stateReliable when nothing else is working
0 – No Automatic Failover or restart
Service is down
1 – Failover or restart on server down
No response from SP
2 – Failover or restart on server unresponsive
System errors3 – Failover or restart on critical
SQL Server errors
Resource errors4 – Failover or restart on
moderate SQL Server errors
Query errors5 – Failover or restart on any qualified failure conditions
Log only
SQL Server 2012 Automation capabilities
PowerShell 2.0 support Additions to the SQL Server Provider
AlwaysOn High Availability objects Analysis Services support (AMO) Integration Services support Xevents support
New Scenario Cmdlets AlwaysOn High Availability cmdlets Analysis Services cmdlets Reporting Services Sharepoint mode
cmdlets
demo
SQL Server Automation with PowerShell cmdlets
SQL Server 2012 licensing for Virtualized environment
SQL Server 2012 licensing guide http://www.microsoft.com/sqlserver/en/us/editions.aspx
SQL Server Private cloud case studies
Drive Green IT:
in the first year
REDUCE COST
35% ENERGY
90%COOLING
95%
FLOOR SPACE
89%ADMINISTRATION
75%
100-200 VMs 200-400 VMs Hundreds of VMs Thousands of VMs
Microsoft Private Cloud Database ApplianceReduce TCO and SCALE TO 1000’s of Databases
Road ahead
Windows Server 2012 Virtualization enhancements further unlocks the potential of SQL Server 2012 private cloud
Virtual Fiber channel within VMParallel Live migration, Storage migrationStorage spaces, SMB fileshare and scores of enhancementsOffload Data Transfer (ODX)Network virtualization
SQL Server in Windows Azure Virtual Machine – opens the doors to Hybrid IT Data platform
Don’t miss the session today at 1:00 PM (same room)
Resources
http://www.microsoft.com/sqlserver/en/us/solutions-technologies/cloud-computing/private-cloud.aspx Discover SQL Server Sprawl: Microsoft Assessment and Planning Toolkit (MAP)
https://connect.microsoft.com/site297/Downloads/DownloadDetails.aspx?DownloadID=23188
Memory error recovery support in SQL 2012AlwaysOn Powershell automationSQLOS Team blog - http://blogs.msdn.com/b/sqlosteam/
Resources
Connect. Share. Discuss.
http://europe.msteched.com
Learning
Microsoft Certification & Training Resources
www.microsoft.com/learning
TechNet
Resources for IT Professionals
http://microsoft.com/technet
Resources for Developers
http://microsoft.com/msdn
Evaluations
http://europe.msteched.com/sessions
Submit your evals online
© 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.