Raid 10 - Combination Of Raid 1 And Raid 0; Raid 50 - Combination Of Raid 5 And Raid 0; Figure 21. Raid 5; Figure 22. Raid 5 - Intel SE7520AF2 Technical Product Specification

Intel® Server Board SE7520AF2 TPS
4.4.4

RAID 10 - Combination of RAID 1 and RAID 0

RAID 10 is a combination of RAID 0 (performance) and RAID 1 (data security). Unlike RAID 5,
there is no need to calculate parity information. RAID 10 disk arrays offer good performance and
data security. As in RAID 0, optimum performance is achieved in highly sequential load
situations. Identical to RAID 1, 50% of the installed capacity is lost through redundancy. RAID
10 tolerates a drive failure of one drive per stripe. RAID 10 also requires a minimum of four
drives and is set up by spanning two or more RAID 1 arrays. Up to eight RAID 1 arrays can be
spanned in a RAID 10 configuration.
4.4.5

RAID 50 - Combination of RAID 5 and RAID 0

Like RAID 10, RAID 50 is created by first creating multiple RAID 5 arrays and spanning across
them. RAID 50 arrays provide the excellent performance of RAID 5 with added data security.
RAID 50 requires a minimum of six drives and can span a maximum of eight RAID 5 arrays.
RAID 50 tolerates a single drive failure per stripe.
Revision 1.2
Integrated Intel® RAID Controller SROMBU42E

Figure 22. RAID 5

Figure 23. RAID 5
Intel order number C77866-003
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