Array 2 is Raid 10. The difference comes as you add disks. In your case, if you're going with only 8 drives, and you are considering RAID 60, you might as well just go for a RAID 10; that way you don't have to account to parity calculations and the issues that come with that. Each RAID 6 set would be (6 * 150)/6. Not keeping data intact. RAID 0 offers striping with no parity or mirroring. Hardware RAID vs. software RAID RAID 10 vs RAID 50: The RAID level you use will increase or decrease the effectiveness each these two primary benefits -- protection and performance. Because the behavior remains identical to RAID 10 there is an extremely strong tendency to avoid the confusion of calling the array RAID 100 and simply referring to it as RAID 10. RAID 60 doesn't use a single size, RAID 60 has different configuration options. Now it's RAID 6, which protects against 2 drive failures. Sure enough, no enterprise storage vendor now recommends RAID 5. Array 1 is Raid 6. RAID 10 however will store 12Mb into 2 drives and then duplicate it – duplicating does not change performance, since drives need to be synced together for consistency. for 4 drives, RAID 5 is in theory, 50% better for both read and write performance.

Similar to a RAID 50 array (see RAID 50 Arrays), a RAID 60 array--also referred to as dual drive failure protection-- is built from at least eight disk drives configured as two or more RAID 6 arrays, and stripes stored data and two sets of parity data across all disk drives in both RAID 6 arrays. Not keeping data intact. So the RAID 5 will store 4 MB or raw data per drive whilst the RAID 10 is storing 6Mb. Mirroring is writing data to two or more hard drive disks (HDDs) at the same time – if one disk fails, the mirror image preserves the data from the failed disk. You'd need to use 4x RAID 6 in your RAID 60, not 3x or 2x to be safe at all. Asher Dallas Lecture - RAIDS 101 : RAID 0 vs RAID 1 vs RAID 5 vs RAID 6 vs RAID 10 by J Martinez - Duration: 55:59. for 4 drives, RAID 5 is in theory, 50% better for both read and write performance. You would really only get 67% capacity. Where disk in the striped set could be protected with raid 5 or raid … The difference comes as you add disks. Lets say we have 12 3TB drives. Where disk in the striped set could be protected with raid 5 or raid … So the main thing RAID should be looked at is server uptime. RAID 10 however will store 12Mb into 2 drives and then duplicate it – duplicating does not change performance, since drives need to be synced together for consistency.