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The Itil Community Forum: Forums
ITIL :: View topic - Ver 2 ITIL Availability vs Continuity
Posted: Tue Jul 15, 2008 5:14 am Post subject: Ver 2 ITIL Availability vs Continuity
Hi guys,
Just to clarify , would it bepossible for someone to guide me thru' the main differences between Availability Management and Continuity Planning function please.
Joined: Sep 16, 2006 Posts: 3553 Location: London, UK
Posted: Tue Jul 15, 2008 5:47 pm Post subject:
Sure
It is real easy
AM is concerned with how available the service you are providing can be and is
for example
you provide web services to your customes
you have 10 web servers in a cluster - load shared and load balanced
you have 4 network switches in 2 redundant pairs where 5 of the 10 are cdistributed in due to dual NIC
You have a pair of routers connecting out to the world
You have 1 carrier who says that your network connections are divergent -(both not really - as they both go through one central point - further down the line)
Each of the items has an SLA associated with an expected uptime. You can figure the weakest one is the carrier
So how available are you possible ?
ContM is the ability to provide a service after a serious impact
in other words after a disaster, how quickly or slowly can you provide service
the devil is what do you define as a a disaster
what do you define as a service
So your servers in your datacenter are stolen by thief who break into the datacenter - which was owned by your hosting company.
How soon can you be up ?
Do you have an alternate site ?
Do you have all the data for your web site stored somewhere else
etc etc etc _________________ John Hardesty
ITSM Manager's Certificate (Red Badge)
Change Management is POWER & CONTROL. /....evil laughter
Joined: Sep 16, 2006 Posts: 3553 Location: London, UK
Posted: Tue Jul 15, 2008 5:49 pm Post subject:
one more thign.. this should be in the discussion forum as it is not a certification question _________________ John Hardesty
ITSM Manager's Certificate (Red Badge)
Change Management is POWER & CONTROL. /....evil laughter
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Sorry ...thanks for the assistance
