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Security systems need an Always-On world
A lengthy report here about security systems and the need for a fault-tolerant architecture. Being a little controversial though, I would take the author to task when he starts talking about redundant...
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Whoops. I can’t even buy a pint
Whoops. Barclays online payments have been down (they may still be down – anyone know?). A suggestion here that you abandon your shopping or online buying and nip down to the pub. Hope you have some...
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Businesses need to be ‘digital’
“24 hours a day, seven days a week – that’s what businesses need to be” – so said the CEO of Barclays a short while ago before the bank cheesed-off a load of customers when their banking app crashed at...
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Software redundancy/failover is fine for stateless
While using software redundancy is fine for stateless workloads such as Web-based application architectures, it isn’t always the best choice for traditional commercial applications that simply can not...
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The move from hardware to software based fault tolerance
A noteworthy article that deliberates the shifting trends of hardware fault tolerance to software fault tolerance and what is realistically achievable today. Particularly relevant for those...
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Read the fine print
It has always been said that you should read the fine print. When it comes to cloud or hosted services, you definitely must. I remain dismayed that services peddled with 100% availability rarely mean...
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Is 99% availability good?
99% sounds pretty complete in theory, but imagine if only 99% of your orders shipped. For IT, 99% availability translates into 1 hour and 41 minutes of downtime per week. That’s about twice the...
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The more complex the environment, the longer it will take to rectify or...
So says Pieter can der Merwe of Stratus technologies – I couldn’t agree more. I am bewildered why corporates and IT departments naturally veer towards complex systems thinking that in some way they are...
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Just the ticket – true Total Cost of Ownership
Had to have a chuckle at how much money Detroit is losing by ‘investing’ in cheap batteries. Now we all know that the pink bunny can run longer but what has this to do with fault tolerance? Well, its...
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Fault tolerance and shared nothing migration
With Windows 2012, there is a great new facility referred to as “Shared Nothing Live Migration”. This is marketed as a mobility solution, as to opposed to anything associated with high availability. I...
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