The system that hosts the IPS package repository can be either an x86-based or a SPARC-based system.
Repository servers running Oracle Solaris 11 11/11 support all Oracle Solaris 11 update packages.
To host a copy of the Oracle Solaris 11.2 release repository, the repository server must have 16 gigabytes of free space.
Because best practice is to keep local repositories updated with all support updates, plan to use 10-15 GB of additional space each year for support updates. Additional software, such as Oracle Solaris Studio or Oracle Solaris Cluster, of course requires additional space in the package repository.
If one system hosts more than one IPS repository, make each repository a separate ZFS file system so that you can rollback and recover each repository separately.