IBM Power System E850C Technical Overview And Introduction page 73

The Easy Tier configuration is accomplished through a standard operating system SAS
adapter configuration utility. Figure 2-15 shows an example of tiered array creation for AIX.
Figure 2-15 Array type selection panel on AIX RAID Manager
Figure 2-16 shows a created tiered array for AIX.
Figure 2-16 Tiered arrays (RAID 5T2, RAID 6T2, and RAID 10T2) example on AIX RAID Manager
59
Chapter 2. Architecture and technical overview