Before enabling the simultaneous-write function, you must
consider available resources and configuration settings. As a best
practice, you can separate data into discrete storage
hierarchies.
Controlling the number of client mount points for simultaneous-write operations
During simultaneous-write operations, a client
session
requires a mount point for each sequential-access storage pool to
which data is written. Transactions fail if the number of mount points
that are required for a client session is insufficient.
Storing data without using the simultaneous-write function
Writing data simultaneously to copy storage pools and active-data
pools might not be an efficient solution for every primary storage
pool. When simultaneous-write operations are not practical, use the BACKUP
STGPOOL and COPY ACTIVEDATA commands
to store data in copy storage pools and active-data pools.