issue54:tuto_strategie_de_sauvegarde
Différences
Ci-dessous, les différences entre deux révisions de la page.
Prochaine révision | Révision précédente | ||
issue54:tuto_strategie_de_sauvegarde [2011/11/02 18:12] – créée auntiee | issue54:tuto_strategie_de_sauvegarde [2011/12/09 19:16] (Version actuelle) – frangi | ||
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- | Let's rewind. In part one, we posite that the safest data storage plan goes something like this: | + | **Let's rewind. In part one, we posite that the safest data storage plan goes something like this: |
• local machine disk: original or master copy | • local machine disk: original or master copy | ||
• network storage disk: common or shared copy | • network storage disk: common or shared copy | ||
• off-line storage, which these days means remote cloud storage, or on-line back-up. | • off-line storage, which these days means remote cloud storage, or on-line back-up. | ||
- | This isn't simply jumping on the bandwagon of ' | + | This isn't simply jumping on the bandwagon of ' |
- | We all know the issues with the traditional backup solution; either it's not done regularly, or somebody sends the wrong generation of tapes to the off-site safe. Or your data DVD sits on top of the book-case for six months when you should have taken it to Grandma' | + | Rembobinons. Dans la première partie, nous avons conclu que le plan le plus sûr de stockage de données ressemble à peu près à ceci : |
+ | • disque sur la machine locale : original ou copie master ; | ||
+ | • disque de stockage en réseau : copie commune ou partagée ; | ||
+ | • le stockage hors ligne, qui signifie de nos jours stockage à distance dans le nuage (le « cloud » en anglais) ou sauvegarde en ligne. | ||
+ | |||
+ | Il ne s'agit pas simplement de succomber au « tout dans les nuages » à la mode. Une vraie sauvegarde hors site utilise le centre de données de quelqu' | ||
+ | |||
+ | **We all know the issues with the traditional backup solution; either it's not done regularly, or somebody sends the wrong generation of tapes to the off-site safe. Or your data DVD sits on top of the book-case for six months when you should have taken it to Grandma' | ||
industry in and of itself. Your only real difficulty is choosing which Cloud and which provider meets your needs. Everyone seems to be offering | industry in and of itself. Your only real difficulty is choosing which Cloud and which provider meets your needs. Everyone seems to be offering | ||
Cloud storage, that's not the same as a Cloud back-up service. | Cloud storage, that's not the same as a Cloud back-up service. | ||
- | Perhaps we should begin by running down a check-list to help make the decision. | + | Perhaps we should begin by running down a check-list to help make the decision.** |
+ | |||
+ | Nous connaissons tous les problèmes avec la solution de sauvegarde traditionnelle : soit ce n'est pas fait régulièrement, | ||
+ | |||
+ | Peut-être que nous devrions commencer par examiner une check-list pour vous aider à prendre la décision. | ||
- | Cost | + | **Cost |
It's where I always start. Is there an up-front fee? What's the ongoing monthly or annual fee? | It's where I always start. Is there an up-front fee? What's the ongoing monthly or annual fee? | ||
How much storage do I get for my money? What service level – that's performance and uptime availability – does that buy me? How big is the jump between price and storage bands? | How much storage do I get for my money? What service level – that's performance and uptime availability – does that buy me? How big is the jump between price and storage bands? | ||
- | Cloud backup is a crowded, immature market right now, with providers clamoring for our business. For the average householder, | + | Cloud backup is a crowded, immature market right now, with providers clamoring for our business. For the average householder, |
- | Software | + | Le coût |
+ | |||
+ | C'est par là que je commence toujours. Y a-t-il des frais initiaux ? Quelle est la redevance mensuelle ou annuelle ? | ||
+ | |||
+ | Combien puis-je obtenir de stockage pour mon argent ? Quel niveau de service - c'est la performance et le temps de disponibilité - est-ce que je paie ? Quelle est la taille du saut entre le prix et les bandes de stockage ? | ||
+ | |||
+ | La sauvegarde dans le nuage est un marché encombré et immature pour l' | ||
+ | |||
+ | **Software | ||
All the mature services offer dedicated software clients to manage the upload and download process. All claim to be cross platform, so long as that means Windows and Mac. Many now have a Linux client available. I like the idea of browser-based upload and download, also called “NOT having to use a proprietary program to access the service.” This is where Ubuntu One scores, even though it's basic Cloud storage rather than a fully-fledged | All the mature services offer dedicated software clients to manage the upload and download process. All claim to be cross platform, so long as that means Windows and Mac. Many now have a Linux client available. I like the idea of browser-based upload and download, also called “NOT having to use a proprietary program to access the service.” This is where Ubuntu One scores, even though it's basic Cloud storage rather than a fully-fledged | ||
- | cloud backup at present. | + | cloud backup at present.** |
+ | |||
+ | Les logiciels | ||
+ | |||
+ | Tous les services matures offrent un client logiciel dédié pour gérer les processus de transfert de fichiers. Tous prétendent être multi-plateformes, | ||
- | Ease of Use | + | **Ease of Use |
We also want ease of use, whereby; | We also want ease of use, whereby; | ||
• setup and installation is simple, and completed within a few steps of downloading the software. | • setup and installation is simple, and completed within a few steps of downloading the software. | ||
Ligne 30: | Ligne 53: | ||
• the scheduler should allow unattended back-ups to a frequency and time-of-day set by you, preferably down to the minute. | • the scheduler should allow unattended back-ups to a frequency and time-of-day set by you, preferably down to the minute. | ||
• data can be restored easily and immediately, | • data can be restored easily and immediately, | ||
- | • we have easy, centralized management of all our backups sets with sufficient meta-data to distinguish sets from each other. | + | • we have easy, centralized management of all our backups sets with sufficient meta-data to distinguish sets from each other.** |
- | Encryption | + | La facilité d' |
+ | |||
+ | Nous voulons aussi la facilité d' | ||
+ | • une configuration et une installation simples et terminées en quelques étapes après le téléchargement du logiciel ; | ||
+ | • une sauvegarde en ligne qui peut fonctionner en tâche de fond pendant que nous poursuivons notre activité normale, sans monopoliser toute notre bande passante ; un réglage pour la vitesse d' | ||
+ | • une définition aisée des fichiers inclus et exclus pour chaque jeu de sauvegarde, jusqu' | ||
+ | • un programmateur qui doit permettre des sauvegardes automatiques à une fréquence et une heure de la journée que vous avez fixées, de préférence à la minute près ; | ||
+ | • des données qui peuvent être restaurées facilement et sur-le-champ, | ||
+ | • une gestion centralisée et facile de toutes nos sauvegardes, | ||
+ | |||
+ | **Encryption | ||
These days we should take data security very seriously. Thank you, Sony and the DoD. A true back-up of all your important stuff is going to include your personal stuff, banking, and correspondence. Nobody wants to suffer identity theft. | These days we should take data security very seriously. Thank you, Sony and the DoD. A true back-up of all your important stuff is going to include your personal stuff, banking, and correspondence. Nobody wants to suffer identity theft. | ||
As far as the Cloud is concerned, there are several ways of doing this, the best being to implement a solid version of 128-bit encryption, minimum, | As far as the Cloud is concerned, there are several ways of doing this, the best being to implement a solid version of 128-bit encryption, minimum, | ||
- | policeman. | + | policeman.** |
- | Performance | + | Le cryptage |
+ | |||
+ | De nos jours, nous devrions prendre très au sérieux la sécurité des données. Merci Sony et le DoD [Ndt : le Département de la Défense américain]. Une vraie sauvegarde de tous vos éléments importants va inclure vos trucs personnels, bancaires, et la correspondance. Personne ne veut subir un vol d' | ||
+ | |||
+ | En ce qui concerne le « Cloud », il existe plusieurs façons de faire cela, la meilleure étant de mettre en œuvre une version solide de chiffrement à 128 bits au minimum sur votre client, avant qu'il ne quitte votre machine pour voyager dans les câbles. De préférence, | ||
+ | |||
+ | **Performance | ||
We absolutely need speed and reliability. The platform at the providers' | We absolutely need speed and reliability. The platform at the providers' | ||
year. | year. | ||
- | The service also needs to maintain our data mirrored for resilience and fail-over, as protection against data loss due to sabotage, fire, theft, flood, virus, or other disasters. Put another way, your Cloud service shouldn' | + | The service also needs to maintain our data mirrored for resilience and fail-over, as protection against data loss due to sabotage, fire, theft, flood, virus, or other disasters. Put another way, your Cloud service shouldn' |
- | Convenience | + | La performance |
+ | |||
+ | Nous avons absolument besoin de vitesse et de fiabilité. La plate-forme d' | ||
+ | |||
+ | Le service doit également maintenir un miroir de nos données pour la résilience et le basculement, | ||
+ | |||
+ | **Convenience | ||
Now things get interesting, | Now things get interesting, | ||
- | • file-sharing capabilities; | + | • file-sharing capabilities; |
- | able to define shares, ' | + | • remote web access to data, at anytime. Ideally it's that browser-based client that allows you to securely access your data (perhaps without all the |
- | ' | + | capabilities as the dedicated client) from any machine. |
- | granular file level, | + | • true 24-by-7-y-365 data availability. See Performance. |
- | with some tiered | + | • status reporting for verification and audits. We need to have confidence demonstrated by proper management information.** |
- | security | + | |
- | according to | + | |
- | permissions | + | |
- | that you | + | |
- | alone are | + | |
- | able to set | + | |
- | from your | + | |
- | management | + | |
- | console. | + | |
- | • remote web | + | |
- | access to data, | + | |
- | at anytime. | + | |
- | Ideally it's that | + | |
- | browser-based | + | |
- | client that allows you | + | |
- | to securely access your data | + | |
- | (perhaps without all the | + | |
- | capabilities as the dedicated client) | + | |
- | from any machine. | + | |
- | • true 24-by-7-y-365 data | + | |
- | availability. See Performance. | + | |
- | • status reporting for verification | + | |
- | and audits. We need to have | + | |
- | confidence demonstrated by | + | |
- | proper management information. | + | |
- | Very little of this is new; in fact, | + | La commodité |
- | most conventional client-side | + | |
- | backup applications and webhosting | + | Maintenant les choses deviennent intéressantes, |
- | services have all these | + | • les capacités de partage de fichiers ; être capable de définir des partages, des « endroits », des « aperçus » ou des liens publics au niveau de granularité du fichier, avec une certaine sécurité à plusieurs niveaux en fonction de permissions que vous seul êtes en mesure de fixer à partir de votre console de gestion ; |
- | covered; now is the time to put the | + | • l' |
- | two together in the Cloud. With | + | • vraie disponibilité des données 24h/24, 365j/an. Voir « La performance » ; |
- | these considerations in mind, you | + | • des rapports d' |
- | can now look at the various | + | |
- | services on offer, and judge for | + | **Very little of this is new; in fact, most conventional client-side backup applications and webhosting services have all these covered; now is the time to put the two together in the Cloud. With these considerations in mind, you can now look at the various services on offer, and judge for yourself how they stack up. |
- | yourself how they stack up. | + | |
BIO :Allan J. Smithie is a journalist and | BIO :Allan J. Smithie is a journalist and | ||
commentator based in Dubai. His | commentator based in Dubai. His | ||
blog, 'No Expert,' | blog, 'No Expert,' | ||
+ | http:// | ||
+ | |||
+ | Rien de très nouveau dans tout cela ; en fait, les plus classiques des applications de sauvegarde et des services d' | ||
+ | |||
+ | BIO : Allan J. Smithie est journaliste et commentateur, | ||
http:// | http:// | ||
+ |
issue54/tuto_strategie_de_sauvegarde.1320253978.txt.gz · Dernière modification : 2011/11/02 18:12 de auntiee