POOL IDs are not set up or managed like normal user IDs. They are not meant to be individualized with separate passwords. They can only be updated using VMSECURE ADMIN POOL. You can change the password via ADMIN POOL, although the password would be the same for all the pool IDs.
See the IBM CP Planning and Admininstration Guide for more information on the POOL directory statement. It really is a combination USER (or Identity) and POOL statement that defines it.
When you enter the following command:
VMSECURE ADMIN POOL VMU
The system generates the following lines in an XEDIT session:
00001 USER VMU AUTOONLY 3M 3M G 64
00002 POOL LOW 00000 HIGH 00002 PROFILE DEFAULT
Note: You must replace the word DEFAULT with an existing PROFILE that at least contains a CONSOLE statement.