SQL Server AlwaysOn Deep Dive for SharePoint Administrators

Transcription

1 SQL Server AlwaysOn Deep Dive for SharePoint Administrators SharePoint Saturday Montréal Edwin Sarmiento 23 mai 2015

2 SQL Server AlwaysOn Deep Dive for SharePoint Administrators

3 Edwin Sarmiento Microsoft MVP/Microsoft Certified Master: SQL Server

4 just when you think it s an EMERGENCY

5 high availability

6 high availability characteristic of a system that is f u l l y o p e r a t i o n a l for a long period of time local data center

7 high availability is N O T the same as UPTIME

8 Just because something is UP doesn t mean it s available

9 ZERO downtime & data loss

10 high availability Recovery Time Objective ( R T O ) When is my application coming back?

11 downtime 90 (one nine ) 36.5 days per year 72 hours per month % availability 16.8 hours per week

12 downtime 99 (two nines ) 3.65 days per year 7.2 hours per month % availability 1.68 hours per week

13 downtime 99.9 (three nines ) 8.76 hours per year 43.8 minutes per month % availability 10.1 minutes per week

14 downtime (four nines ) minutes per year 4.32 minutes per month % availability 1.01 minutes per week

15 downtime (five nines ) 5.26 minutes per year 25.9 seconds per month % availability 6.05 seconds per week

16 RTO 4 hours September 11, :00AM Maximum outage: +4 hours

17 downtime (five nines ) How long does it take to restart S Q L S e r v e r 5.26 minutes per year 25.9 seconds per month % availability 6.05 seconds per week

18 high availability is NOT THE SAME as disaster recovery

19 characteristic of a system that is o p e r a t i o n a l l y a c c e p t a b l e after a disaster remote data center disaster recovery

20 Recovery Point Objective ( R P O ) How much data can I afford to lose? disaster recovery

21 RPO 4 hours September 11, :00AM Maximum outage: -4 hours

22 Cost RPO/RTO versus Total Cost of Ownership Time

23 ZERO downtime & data loss

24 architecture diagrams

25 Single-Server Deployment Web, Application and Database Server recommended only for DEVELOPMENT ENVIRONMENT which usually ends up being so popular that it has now become a MISSION-CRITICAL PRODUCTION SERVER *alternate access mappings (AAM) configured

26 Basic 2-Tier Architecture Web and Application Server Database Server *alternate access mappings (AAM) configured

27 3-Tier Architecture Web Server Application Server Scalability & High Availability Database Server *alternate access mappings (AAM) configured

28 3-Tier Architecture hardware load balancer Web Server Application Server Scalability & High Availability Database Server *alternate access mappings (AAM) configured

29 3-Tier Architecture hardware load balancer Web Server Application Server Scalability & High Availability Web & Application Server Local High Availability Database Server Disaster Recovery Failover Clustered Instances Availability Groups *alternate access mappings (AAM) configured

30 FAILOVER CLUSTERING

31 FAILOVER CLUSTERING can either be an HA and/or DR solution *INSTANCE protection

32 failover clustering how it works SQL Server traditional 2-node log data cluster Windows Server Failover Cluster

33 failover clustering Application how it works SQL Server traditional 2-node log data cluster Windows Server Failover Cluster

34 failover clustering Application how it works SQL Server traditional 2-node log data cluster Windows Server Failover Cluster

35 AVAILABILITY GROUPS

36 AVAILABILITY GROUPS introduced in SQL Server 2012 *DATABASE (group) protection

37 AVAILABILITY GROUPS can either be an HA and/or DR solution *DATABASE (group) protection

38 AVAILABILITY GROUPS combination of DATABASE MIRRORING & FAILOVER CLUSTERING

39 *maximum of EIGHT replicas Windows Server Failover Cluster Primary Replica Secondary Replica Secondary Replica SQL Server SQL Server SQL Server log data log data log data

40 3-Tier Architecture hardware load balancer Web Server Application Server Scalability & High Availability Web & Application Server Local High Availability Database Server Disaster Recovery Failover Clustered Instances Availability Groups *alternate access mappings (AAM) configured

41 SQL Server COMMON Availability DESIGN Groups PATTERNS

42 SQL Server COMMON Availability DESIGN Groups PATTERNS What will be your QUORUM model?

43 SQL Server COMMON Availability DESIGN Groups PATTERNS What will be your REPLICATION MODE?

44 SQL Server COMMON Availability DESIGN Groups PATTERNS What will be your NETWORK CONFIGURATION?

45 SQL Server COMMON Availability DESIGN Groups PATTERNS What will be your LICENSING MODE?

46 2 Replicas, Stand-alone instances (HA only) PRODUCTION Primary Replica Secondary Replica SQL Server SQL Server log data log data Windows Server Failover Cluster

47 *You need to discuss this with your network team 3 Replicas, Stand-alone instances (HA + DR) PRODUCTION DR Primary Replica Secondary Replica * LowerQuorumPriorityNodeID 2012 R2 Secondary Replica * NO VOTE 2008/2012 SQL Server SQL Server SQL Server log data log data log data Windows Server Failover Cluster

48 *You lose the ability to do automatic failover 2 Replicas, FCI + Stand-alone instance (HA + DR) PRODUCTION DR * LowerQuorumPriorityNodeID Primary Replica 2012 R2 Secondary Replica * NO VOTE 2008/2012 SQL Server SQL Server log data log data Windows Server Failover Cluster

49 *You lose the ability to do automatic failover 3 Replicas, FCI + Stand-alone instance (HA + DR + ) PRODUCTION Primary Replica DR * LowerQuorumPriorityNodeID 2012 R2 Secondary Replica * NO VOTE 2008/2012 Additional Data Center * LowerQuorumPriorityNodeID 2012 R2 Secondary Replica * NO VOTE 2008/2012 SQL Server SQL Server SQL Server log data log data log data Windows Server Failover Cluster

50 *You lose the ability to do automatic failover 2 Replicas, FCI (HA + DR) PRODUCTION Primary Replica DR * NO VOTE * LowerQuorumPriorityNodeID 2008/ R2 Secondary Replica SQL Server SQL Server log data log data Windows Server Failover Cluster

51 Questions

52 Edwin Sarmiento Microsoft MVP/Microsoft Certified Master: SQL Server

53 Bronze Web Or Argent Merci à nos commanditaires!

54 SharePint! Ce soir à 18h Le Trèfle, 3971 Rue Ontario E