Oracle Corp. has rekindled its Solaris love. Sun's Solaris operating system will underlie new high-end data center appliances running the Oracle software stack. And Oracle EnterpriseLinux now becomes the preferred OS for lower-end commodity hardware. By making the Sparc/Solaris tandem the foundation of big-iron SMP appliances, the company is going back to its roots when Oracle and Sun were joined at the hip. Pre-Linux, Solaris was the de facto development platform for new Oracle software. New Oracle databases came out first on Solaris and later on everything else.