...lines reveals overlaps in areas such as chip architectures, with IBM offering its Power processor family and Sun the SparcRISC processor. In the database realm, IBM has its core DB2 platform while Sun acquired the open source MySQL database...
http://www.cio.com/article/488479/Fate_of_Sun_s_Products_Up_in_the_Air
...reliability and serviceability features include: • Multiple SPARCRISC processor architecture • Hot-swappable modules...well as the Management Processor Module have multiple SPARCRISC processors, supported by an advanced memory architecture...
http://www.redbooks.ibm.com/redbooks/pdfs/sg244881.pdf