1. A method comprising: receiving, from a system logger component, a request to access a file with an exclusive serialization; allocating, by one or more computer processors, in response to the request, the file with an exclusive serialization; transforming, by the one or more computer processors, the exclusive serialization associated with the newly allocated file into a shared serialization, wherein transforming the exclusive serialization associated with the newly allocated file into a shared serialization comprises: connecting, by a media manager, to the newly allocated file; verifying, by the media manager, the file attributes of the newly allocated file; disconnecting, by the media manager, from the newly allocated file; deallocating, by a dynamic allocation module, the newly allocated file, wherein the dynamic allocation module is a part of a multiple virtual storage (MVS) dynamic allocation process; and allocating, by the dynamic allocation module, the deallocated file with the shared serialization, wherein the newly allocated file associated with the shared serialization is configured to be a sharable resource for each platform connected to a network in a multisystem environment; notifying, by the one or more computer processors, that the allocated file with the transformed shared serialization is configured as a sharable resource for the multisystem environment; and notifying, by a serialization handler, one or more platforms of the multisystem environment indicating that the allocated file is now a file for shared access.