DFSOTMA descriptor
Use the optional DFSOTMA descriptor to define global and default attributes, limits, and types of support that apply to all OTMA clients.
The DFSOTMA descriptor is an
OTMA type-M descriptor that sets system defaults and global
parameters for all OTMA clients that connect to this IMS™ system.
The DFSOTMA descriptor does
not support all of the parameters that you can specify on an
OTMA client descriptor. Parameters that are not supported,
such as DRU= and T/O=, are ignored if they are specified in
the DFSOTMA client descriptor.
- Message flood protection
- Global tpipe limit
for all the OTMA members or clients
- The
maximum number of RACF user IDs that can have cached accessor environment elements (ACEEs) stored in
subpool 249.
If DFSOTMA is
used, IMS builds a
type-M descriptor block to store the global information
specified. The block counts toward the 255 maximum number of
type-M descriptors, so when the DFSOTMA descriptor is used,
the maximum number of OTMA client descriptors is 254.
The DFSOTMA descriptor is always loaded from the DFSYDTx PROCLIB member regardless of the IMS restart type. There are no checkpoint log records for the DFSOTMA descriptor.