Method of calculating the available capacity before configuring RAID

1. You can view the available capacity during RAID array configuration.
2. You can also estimate the
? RAID 0: 100%
? RAID 1: 50%
? RAID 5: (N-1)/N
? RAID 6: (N-2)/N
? RAID 10: 50%
? RAID 1E: (N+1)/2N
? RAID 50: (N-M)/N
? RAID 60: (N-M*2)/N
N indicates the number of member hard disks in a RAID array. M indicates the number of sub-groups of a RAID array.
For example, if three 300 GB disks are used to create a RAID 5 array,
Disk usage rate: (3-1)/3 = 2/3
Available capacity of the RAID 5 array: 3 x 300 x 2/3 = 600 GB

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