First, before to talk about the definition of High Availability, I’d like to introduce the notion of availability. A system is considered unavailable when it becomes unusable or even usable but with too limited functions.
There are many reasons for this and some of these are commonly called Single Point of Failure (SPOF), others are most [...]
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Tag Archives: High Availability
High Availability
26 September 2008 – 21:20
in Information Technologies —
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Le système RAID
7 April 2008 – 11:31
in Information Technologies —
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Le terme RAID signifie Redundant Array of Independent Disks, ce qui traduit veux dire : “Grappe redondante de disque indépendants“. Ce système sert principalement à fournir une redondance sur les volumes afin d’obtenir de hautes performances et/ou une grande sécurisation des données, pour cela, il utilise un nombre de disque important.
Il existe de nombreuses configurations [...]
Stockage en haute disponilité
10 March 2008 – 13:23
in Information Technologies —
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Si vous voulez un système en haute disponibilité, il faut s’assurer avant tout que vos données seront aussi dans ce genre de configuration, c’est a dire repartie entre vos serveurs et sécurisées.
Pour cela il existe différentes solutions et je vous parlerais ici des systemes de NAS/SAN .
Définition : NAS/SAN.
Avant de commencer, que veulent dire ces [...]
The importance of a good system monitoring
14 June 2007 – 10:44
in Information Technologies, Me, Myself and I —
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Servers are the keystones of any organisation working with computers, and to ensure productivity, you must make sure there will be the fewest downtimes possible. To have a correct Level of service, one of the first things to do is to elaborate a monitoring plan.
Why server monitoring has to be performed?
This question might sound ridiculous, [...]
Why stress testing applications ?
13 June 2007 – 10:42
in Information Technologies, Me, Myself and I —
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Stress testing is one of the most important part of development lifecycle as computers have taken a big part in our working life. Everybody working in an office is using a computer, and with that, software installed on it or shared over a network. Applications are probably going to be used by more than one [...]
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