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High availability med SharePoint 2013 Hvilke karv og overvejelser har vi gjort os indtil i dag

SPBG slides-3-10-2013

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High availability med SharePoint 2013Hvilke karv og overvejelser har vi gjort os indtil i dag

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Udfordringen

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IT er generelt nød til at lytte til forretningens krav.

GOVERNANCE

Governance is the set of policies, roles, responsibilities, and processes that guide, direct, and control how an organization's business divisions and IT teams cooperate to achieve business goals.

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Fysisk arkitektur

Logisk arkitektur

Service

Farm

Web App Service AppZone

Content DB

Site collection

Site

List / Library

[Foldere]

Item / Dokument

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Definere

Designe udvikle

Deploy

vedligehold

måling

rettelser

2 uger

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Number of 9's Availability Percentage Total Annual Downtime

2 99% 3 days, 15 hours

3 99.9% 8 hours, 45 minutes

4 99.99% 52 minutes, 34 seconds

5 99.999% 5 minutes, 15 seconds

For a given software application or service, high availability is ultimately measured in terms of the end user’s experience and expectations. The tangible and perceived business

impact of downtime may be expressed in terms of information loss, property damage, decreased productivity, opportunity costs, contractual damages, or the loss of goodwill.

The principal goal of a high availability solution is to minimize or mitigate the impact of downtime. A sound strategy for this optimally balances business processes and Service

Level Agreements (SLAs) with technical capabilities and infrastructure costs.

A platform is considered highly available per the agreement and expectations of customers and stakeholders. The availability of a system can be expressed as this calculation:

Actual uptime/Expected uptime X 100%

The resulting value is often expressed by industry in terms of the number of 9’s that the solution provides; meant to convey an annual number of minutes of possible uptime,

or conversely, minutes of downtime.

http://technet.microsoft.com/en-us/library/jj715263.aspx

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Aktiv Passiv

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Aktiv Aktiv

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Web frontend

Site

Web frontend

Site

Load balance

Central admin Central admin

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Web frontend

Site

Load balance

Central admin Central admin

Web frontend

Site

Web frontend

Site

Web frontend

Site

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All servers that belong to a server farm,

including database servers, must physically

reside in the same datacenter. Redundancy

and failover between closely located data

centers that are configured as a single farm

("stretched farm”) is not supported in

SharePoint 2013.

http://technet.microsoft.com/en-us/library/cc262485.aspx

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Web frontend

Site

Load balance

Central admin Central admin

Web frontend

Site

Web frontend

Site

Web frontend

Site

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Web frontend

Site

Load balance

Central admin Central admin

Web frontend

Site

Web frontend

Site

Web frontend

Site

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Med en farm offline:

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http://www.pa.com.au/promo/sharepoint-2013/highavailability/

http://technet.microsoft.com/en-us/library/jj715263.aspx

http://blog.appliedis.com/2012/12/12/sharepoint-conference-2012-high-availability-solutions-with-sharepoint-2013/

http://www.slideshare.net/michaeltnoel/sql-2012-alwayson-availability-groups-for-sharepoint-2013-sharepoint-connections-amsterdam-2012

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