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RAID 5 vs RAID 1


Concrètement, le RAID 1 est composé de deux disques. Les données écrites sur l'un sont copiées sur l'autre. Si un disque tombe en panne, l'intégralité de vos données sera disponible sur le second disque. Le RAID 5 qui nécessite un minimum de 3 disques permet la récupération des données si un disque tombe en panne.

Quel est le gros inconvénient du RAID 0 1 par rapport au RAID 5 ?

L'inconvénient de ce type de raid est qu'il faut 2 disques. Et que l'on perd la moitié de l'espace car les mêmes choses sont copiés sur les 2 disques. (Si vous avez 2 disques de 500 Go, vous n'aurez un volume disponible que de 500 Go).

Quel RAID est le plus fiable ?

Le RAID 5 est donc bien plus sûr que le RAID 0, mais offre beaucoup moins de performances d'ຜriture/lecture. Ces performance sont tout de même supérieures à celle d'un disque dur seul non RAID.

Quel est le RAID le plus rapide ?

RAID 1 ou mirroring\n\n D'ailleurs la lecture est plus rapide sur un système RAID 1. L'ຜriture, elle, se fait à une vitesse normale. Malheureusement vous perdrez donc 50% de la capacité totale de stockage de vos disques au profit de cette sຜurité.

Quel avantage apporte le RAID 1 ?

Comme pour le RAID 0, le RAID 1 permet une lecture des donnພs rapide puisqu'elle peut se faire sur les deux disques mirrorés à la fois. En ce qui concerne l'ຜriture, elle est plus lente qu'en RAID 0, car les donnພs sont recopiພs entièrement sur chaque disque mirroré.




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    What are the advantages of RAID 5 over RAID 1?

    Efficiency in storage capacity Faster write operation You can access data from...

    Why is RAID 5 bad?

    RAID 5 is bad because it only protects your data against one disk failure. This protection doesn't involve multiple disks failures.

    How reliable is RAID 1?

    Of all the RAID configurations (including RAID 0, RAID 5, RAID 4, and the rest), RAID 1 has the most reliable method of protecting data due to the...

    What is the advantage of RAID 5 over RAID 1?

    The RAID 5 array has some advantageous edge over the RAID 1 array, including efficient storage space, accessibility to data during disk rebuild, an...

    Is RAID 5 faster than a single drive?

    No, it is not faster than a single drive. It might even be slower.


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