Use the DSMSERV FORMAT utility to initialize a server instance. No other server activity is allowed while initializing the database and recovery log.
After you set up server communications, you are ready to initialize the database. Ensure that you log in by using the instance user ID. Do not place the directories on file systems that might run out of space. If certain directories (for example, the archive log) become unavailable or full, the server stops.
For optimal performance and to facilitate I/O, specify at least two equally sized containers or Logical Unit Numbers (LUNs) for the database. See Optimizing Performance for more information about the configuration of directories for the database. In addition, each active log and archive log should have its own container or LUN.
dsmserv format dbdir=/tsmdb001 activelogsize=8192
activelogdirectory=/activelog archlogdirectory=/archlog
archfailoverlogdirectory=/archfaillog mirrorlogdirectory=/mirrorlog
db2start
For more information, see DSMSERV FORMAT.