Beda Raid 6, Raid 10 dan Raid 50

RAID 5 (Parity)
Number of disks 12
Single disk size, GB 1228
RAID type RAID 5 (Parity)
Results
Capacity 13508 GB
Speed gain 11x read speed, no write speed gain
Fault tolerance 1-drive failure (dikorbankan 1 disk)

RAID 50
Number of disks : 12
Single disk size, GB : 1228
RAID type : RAID 5E (Parity+spare)
Hasil
Capacity    12280 GB
Speed gain    11x read speed, no write speed gain
Fault tolerance    1-drive failure (dikorbankan 1 disk)



RAID 500
Number of disks : 12
Single disk size, GB : 1228
RAID type : RAID 5EE (Parity+spare)
Hasil
Capacity    12280 GB
Speed gain    10x read speed, no write speed gain
Fault tolerance    1-drive failure (dikorbankan 2 disk)

RAID 10
Number of disks : 12
Single disk size, GB : 1228
RAID type : RAID 10 (Mirror+stripe)
Hasil
Capacity    7368 GB
Speed gain    12x read and 6x write speed gain
Fault tolerance    At least 1-drive failure (dikorbankan 1 disk)

RAID 6
Number of disks : 12
Single disk size, GB : 1228
RAID type : RAID 6 (Double parity)
Hasil
Capacity    12280 GB
Speed gain    10x read speed, no write speed gain
Fault tolerance    2-drive failure (dikorbankan 2 disk)

Storage hasil pengadaan 2016 : Dell EqualLogic PS6210X dengan 12 hard disk 1,2 TB, SAS, 10k. Servernya Dell PowerEdge R730, 2U, 2 socket.
Kalau R830, 2U tapi 4 socket

Lihat Kalkulator RAID (Raid Calculator)

Sumber : http://www.raid-calculator.com/default.aspx