share point ha and dr

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SharePoint Alphabet Soup – HA and DR Greg Kamer

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Page 1: Share Point Ha And Dr

SharePoint Alphabet Soup – HA and DR

Greg Kamer

Page 2: Share Point Ha And Dr

Greg Kamer – The Mirazon Group MCSE:2003, MCTS: MOSS 2007, WSS 3.0 5 Years in IT

◦ 3 with SharePoint Twitter: @gregkamer Email: [email protected]

About Me

Page 3: Share Point Ha And Dr

High Availability◦ Simply, keeping a system up as long as possible

without interruption.◦ Redundancy is key here.◦ Tends to be more costly, but when weighed with

mission critical apps, the costs may be easily justified.

Some Definitions

Page 4: Share Point Ha And Dr

Disaster Recovery◦ How can we recover, in terms of money, speed

and manpower, a system that has been brought down.

◦ Factors can be as small as someone tripping over a network cable and yanking it out to a large scale natural disaster.

◦ Costs range from small to VERY high.

Definitions (cont’d)

Page 5: Share Point Ha And Dr

Considerations must be made for the roles at hand (WFE, Excel, Indexer, Query, etc)

Clustering v Load Balancing◦ No roles in SharePoint can be clustered, with the

exception of the database “role”◦ Some roles will self-load balance◦ Discussion

High Availability in SP

Page 6: Share Point Ha And Dr

Web Front Ends are special They must be load balanced to make them

highly available This is where SharePoint and the user(s)

directly meet

http://geekswithblogs.net/emanish/archive/2007/05/22/112682.aspx

WFEs and Load Balancing

Page 7: Share Point Ha And Dr

Network Load Balancing – Microsoft◦ Free, but limited in functionality◦ Inclusive walkthrough - http://tinyurl.com/mgs566

Virtual Appliances◦ Some free, some paid. Your mileage may vary.

Hardware◦ F5, CoyotePoint, Cisco◦ Awesome features but pricey

Load Balancing WFEs

Page 8: Share Point Ha And Dr

When this is setup in SharePoint, you MUST specify a conversion load balancer.

There are no configuration settings once the service is in place.

Document Conversion

Page 9: Share Point Ha And Dr

Multiple ECS Servers can be used. There is configuration and options, but they

are few.

Excel Calculation Services

Page 10: Share Point Ha And Dr

Once a workbook is opened, the book uses the same server throughout the duration.

For further study: http://blogs.msdn.com/excel/archive/2008/12/12/excel-services-and-load-balancing.aspx

ECS Cont’d

Page 11: Share Point Ha And Dr

This role cannot be made highly available.

There are ways to make it somewhat highly available, but it is not an automatic process and can tax resources.

Index

Page 12: Share Point Ha And Dr

The role can run on a WFE or on separate servers

The roles are made redundant by using multiple WFEs

If not on dedicated WFEs, then round robin is used to serve queries

Beware the dreaded “My query role runs on the index server, but he has no friends cause he doesn’t know how to share” scenario.

Query Role

Page 13: Share Point Ha And Dr

SQL Clustering – very highly available, but requires shared storage (SAN)

SQL Mirroring – not automatic failover for SharePoint, nor really high availability, but can be scripted for more-highly-available-than-not scenario

Database

Page 14: Share Point Ha And Dr

Can provide instant HA in some circumstances

Most any role can be virtualized *with exceptions of course*

DR can be factored in here as well.

Virtualization

Page 15: Share Point Ha And Dr

We all have a plan and we have all tested it, right? Right???

SharePoint has many facets with respect to DR. SQL, Server 2008, hardware and connectivity, etc

Disaster Recovery

Page 16: Share Point Ha And Dr

How do we look at SharePoint in terms of DR?

SQL? Virtualization? Redundancy? Network Connectivity? Backup and restore procedures? Hot/warm/cold recovery sites?

Brainstorm

Page 17: Share Point Ha And Dr

CRUCIAL to any DR discussion. If you have no backups, you have no disaster recoverability.

Restore time and SLAs will determine the type of backups that may be required.

Backups

Page 18: Share Point Ha And Dr

Are available via the GUI (Operations -> Backup)◦ Are really just database dumps◦ Important for Enterprise search-gets index file and

DB at the same time◦ Not able to be scheduled!

STSADM –o backup◦ Able to be made a scheduled task◦ Can cause table locking issues on DB◦ Not good for large site collections

Third party (AvePoint, Idera, DPM, etc)

Backups

Page 19: Share Point Ha And Dr

SharePoint native backups not able to restore individual sites, lists, or items (without a lot of hassle!)

Third party tools must be used for that SPD can backup sites…but not the cleanest

way to do it. Recycle Bin – Can save your bacon!

Backups Cont’d

Page 20: Share Point Ha And Dr

Creating a mirror farm.◦ Database mirroring or log shipping◦ Backup and restores

Third party mirroring tools◦ AvePoint DocAve High Availability -

http://www.avepoint.com/sharepoint-high-availability-docave/

Other DR considerations

Page 23: Share Point Ha And Dr

Q&A

Please fill out your evaluations

Don’t be afraid to play, it’s a resilient platform.

Thank you!