Nvidia 4 Manuel D’Utilisation

MediaShield User’s Guide – Version 4.0

C

HAPTER

 3

Using the NVIDIA MediaShield RAID Management Utility

Specific Migrating Requirements

The following table lists the disk requirements for a new RAID array for various 
migrating combinations. 

RAID Array Disk Requirements for Migrating

i. m = quantity of disks in the new array. n = quantity of disks in the original array.

m > n
Number of disks in the new array must be greater than the original array.

m=2, n=1
RAID 1 array must include two disks, converted from a one disk RAID 0 

array.

m >= 2 x n
Number of RAID 0+1 disks must be equal to or greater than twice the 
number of RAID 0 disks.

m >= n + 1

No additional restrictions.

No additional restrictions.

m >= 3

m >= n/2
Number of RAID 0 disks must be equal to or greater than half the number 
of RAID 0+1 disks.

m >= n + 2 ; where m must be an even number of disks.
The new array must include at least two more disks than the original 
array, and can include any even number of disks beyond that.

m >= (n/2 + 1)

m >= n - 1

m >= 2 x (n - 1) ; where m is an even number of disks.

m >= n