>................I think that there's change in release 1.2.8 with the
> performance and memory allocation. Is a real proble with ADSM client or
> i must set options in dsm.opt to free memory after backup.

The change was to use memory from the Large Non-movable memory pool. The
memory is freed by ADSM after running the operation.
There is no option for freeing memory after the operation,
it is done automatically. The memory is returned
to the system for file caching. Using monitor.nlm, you can watch the
memory allocations for the system and/or each running module in the
system. I have been informed of NWSAA using lot's of short term memory.
Are you using this product?

Try "set maximum alloc short term = 16", if you're running 3.12 server
and NWSAA.