Advanced Host Controller Interface (AHCI) and Redundant Array of Independent Disks (RAID) on HP EliteDesk and EliteOne 705 Business PCs Using AMD Array Management Software (RAIDXpert2)

Table 3: RAID 0 with two hard drives (Striped)

First disk Second disk

Data Segment 1 Data Segment 2

Data Segment 3 Data Segment 4

Data Segment 5 Data Segment 6

Data Segment 7 Data Segment 8

Data Segment 9 Data Segment 10

Data Segment 11 Data Segment 12

Data Segment 13 Data Segment 14

Data Segment 15 Data Segment 16

In the previous table, each “Data Segment n” represents a group of data, known as a stripe. In this case, each row

represents a stripe. RAID 0 represented in the table above shows how information is segmented, made into chunks or

stripes, and stored across the stripes of the hard drive members of this RAID volume.

To better illustrate the concept of RAID 0 and striping, the following graphic shows how a sequence of data “ABCD...” is

stored in a RAID 0 mode. In this example, each letter represents a segment or stripe. The graphic shows how the various

pieces of the information go to different hard drives. If any segment of RAID 0 fails, all information from all members is

lost.

Figure 1: Performance - RAID 0 with two hard drives