Distribution of program temporary fixes (PTFs)

You can use the central site distribution process to apply fixes to the central system and distribute them to the target system. You apply fixes only once.

You can distribute fixes as part of the software involved in a full-system upgrade or logical partition. In the central site distribution process, fixes are distributed as follows. First, fixes are applied to the central system. When the distribution media is created, fixes are saved to the distribution media and distributed. Finally, when the distribution media is installed at the target systems, the Licensed Internal Code Copy A and Copy B is replaced and licensed programs are installed at the central system PTF level.

Using central site distribution to distribute fixes has advantages. One advantage is that no special PTF installation instructions are needed at the target systems. Another advantage is that the target systems will be at the same PTF and release levels as the central system.

Another way to distribute PTFs from a central system to a remote target system is to share virtual optical images with a Network File System (NFS) network. For more information, see Virtual optical storage using the Network File System.