Master catalogs are currently not supported
in RLS mode. Ensure that any catalog in RLS mode is not being shared
as a master catalog by any system in the plex.
RLS protocol cannot be used simultaneously with either ECS or
VVDS protocol for a catalog. This is enforced by the SMSVSAM address
space. If you attempt to use a catalog currently in RLS mode from
a non-RLS system in the sysplex, the associated catalog request will
fail with return code RC4 and reason code RSN124. If a catalog is
currently in either ECS mode or VVDS mode and is shared by a system
that cannot support RLS for catalogs, the attempt to use the catalog
in RLS mode will also fail with return code RC4 and reason code RSN124.
Note: If
you attempt to use a catalog that is currently RLS-active from a system
outside the sysplex, the request might break the catalog.
No more than 1024 catalogs can currently be opened from any single
system using RLS.
All systems sharing the catalog in RLS mode must be on the release
that supports RLS for catalogs and have the SMSVSAM address space
available.