What Is The Difference Between Raid 1 And Raid 5 ?

1.	What Is The Difference Between Raid 1 And Raid 5 ?
Answer» RAID 1 - MIRRORING - This RAID configuration gives you maximum redundancy as the same data is written into two disks at a TIME. But this solution will be costly as you ALWAYS need to have disks double of what you actually require. MINIMUM 2 disks required. RAID 5 - This RAID is the most popular RAID configuration. This works on the PARITY principle. Minimum 3 disks required. Even if one disk fail, the data of the failed disk can be calculated from the parity stored in the other 2 disks.

Answer»

RAID 1 - MIRRORING - This RAID configuration gives you maximum redundancy as the same data is written into two disks at a TIME. But this solution will be costly as you ALWAYS need to have disks double of what you actually require. MINIMUM 2 disks required.
RAID 5 - This RAID is the most popular RAID configuration. This works on the PARITY principle. Minimum 3 disks required. Even if one disk fail, the data of the failed disk can be calculated from the parity stored in the other 2 disks.

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