The Oracle Server X5-8 currently supports the following Oracle Solaris operating systems.
Oracle Solaris 11.2 with SRU10 or later (required)
Oracle Solaris 11.3
The Oracle Solaris Hardware Compatibility List (HCL) identifies hardware that is compatible with the Oracle Solaris Operating System. To find the latest Oracle Solaris version supported for your server, go to the following site and search using your server model number:
http://www.oracle.com/webfolder/technetwork/hcl/index.html