Folks...

ADSM 3.1 was implemented in my shop about 5 years ago (on a mainframe server).  
At the time, we had 5 Netware Clients, and about 7 AIX Clients, so it made 
sense to create two domains - one for each platform.    As in most shops, we've 
experienced an Open Systems growth explosion, to the point where I now have 
approx 30 Netware clients, and 60 UNIX clients, still defined to the original 
two domains.  My server is TSM 4.1, running on S/390.  My storage pools for the 
two domains - from disk to copy pool to offsite tape storage have all grown 
huge.   My feeling is that maintaining the entire environment within two 
domains  is inefficient - backups, migrations, etc take far too long, and I 
don't dream of turning on collocation.

My questions are:

1) Do most people run their servers with fewer, large domains, or is it 
prevalent to operate with many smaller domains defined  with less client nodes 
attached?  

2) If a new domain is defined, how do you move a node, and all it's backed up 
files, from one domain  to different new domain ?

Thank you,

Bill Robb