LaCie 5big Thunderbolt 2 Manual de usuario descargar pdf (Pagina 31)

LaCie 5big Thunderbolt 2 User Manual 31

RAID 5

RAID 5 writes data across all hard drives in the volume and a parity block for each data block. If one physical

hard drive fails, the data from the failed hard drive can be rebuilt onto a replacement hard drive. While the files

stored on a RAID 5 volume remain intact should one hard drive fail, data can be lost if a second hard drive fails

before the RAID is rebuilt with the replacement hard drive.

A minimum of three hard drives is required to create a RAID 5 volume.

RAID 5 offers performance that can approach RAID 0. The strong advantage that RAID 5 gives you is data

protection. Additionally, you still have approximately 75% of the storage capacity of a RAID 0 array (based upon

total available hard drives and storage capacities). The equation for determining the storage is: (The size of the

hard drive with the smallest capacity in the array)*(Total hard drives-1).

Example 1: An array is assigned five 3TB hard drives for a total of 15TB. The equation is: 3TB * 4= 12TB.

Example 2: An array is assigned Three 2TB hard drives and one 3TB hard drive for a total of 9TB. The equation

is: 2TB * 3= 6TB.

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LaCie 5big Thunderbolt 2 Manual de usuario Pagina 31