The AIX 5.3 Technology Level 12 service pack 9 with the Service Extension extends support for these IBM Power Systems servers and adapter:

• IBM Flex Systems 7954-24X
• IBM Flex Systems 7895-43X
• IBM Flex Systems 7895-23A
• PCIe2 1.8 GB Cache RAID SAS Adapter Tri-port 6 Gb CR (#ESA3)

Find out more here.