MSI NF750-G55 User Guide - Page 105

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MS-7578 Specific Migrating Requirements The following table lists the disk requirements for a new RAID array for various migrating combinations. From RAID 0 RAID 1 RAID 0+1 RAID 5 To RAID 0 RAID 1 RAID 0+1 RAID 5 RAID 0 RAID 1 RAID 0+1 RAID 5 RAID 0 RAID 1 RAID 0+1 RAID 5 RAID 0 RAID 1 RAID 0+1 RAID 5 New Array Disk Requirements m > n Number of disk 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. ** Not a valid combination ** No additional restrictions. m >= 3 m >= n2 Number of RAID 0 disks must be equal to or greater than half the number of RAID 0+1 disks. ** Not a valid combination ** ** Not a valid combination ** m >= (n/2 + 1) m >= n - 1 ** Not a valid combination ** m >= 2 x (n-1) ; where m is an even number of disks. m >= n Instructions Click Migrate array to start the Migrate Array Wizard and then follow instructions. You can press F1 to access the online help that walks you through the Wizard with step-by-step instructions. B-15

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B-15
MS-7578
Spec±fic M±grat±ng Requ±rements
The follow±ng table l±sts the d±sk requ±rements for a new RAID array for var±ous m±grat-
±ng comb±nat±ons.
From
To
New Array D±sk Requ±rements
RAID 0
RAID 0
m > n
Number of d±sk ±n the new array must be greater than the or±g±nal array.
RAID 1
m = 2, n = 1
RAID 1 array must ±nclude two d±sks, converted from a one d±sk RAID 0 array.
RAID 0+1
m >= 2 x n
Number of RAID 0+1 d±sks must be equal to or greater than tw±ce the number
of RAID 0 d±sks.
RAID 5
m >= n+1
RAID 1
RAID 0
No add±t±onal restr±ct±ons.
RAID 1
** Not a val±d comb±nat±on **
RAID 0+1
No add±t±onal restr±ct±ons.
RAID 5
m >= 3
RAID 0+1
RAID 0
m >= n2
Number of RAID 0 d±sks must be equal to or greater than half the number of
RAID 0+1 d±sks.
RAID 1
** Not a val±d comb±nat±on **
RAID 0+1
** Not a val±d comb±nat±on **
RAID 5
m >= (n/2 + 1)
RAID 5
RAID 0
m >= n - 1
RAID 1
** Not a val±d comb±nat±on **
RAID 0+1
m >= 2 x (n-1) ; where m ±s an even number of d±sks.
RAID 5
m >= n
Instruct±ons
Cl±ck M±grate array to start the M±grate Array W±zard and then follow ±nstruct±ons.
You can press
F1 to access the onl±ne help that walks you through the W±zard w±th
step-by-step ±nstruct±ons.