To use external mainframe volumes, you can perform external volume mapping using Universal Volume Manager and then format the volumes. However, formatting external mainframe volumes in this way can take a lot of time.
If you want to make external mainframe volumes usable more quickly, you can perform zero-formatting on the external volumes first, map the external volumes, and then use the write to control blocks option to format the volumes. When you specify the write to control blocks option, the format operation is completed more quickly.
For volumes used for mainframe systems, you must format them after creation by specifying Normal Format using the raidcom initialize ldev command or specifying Write to Control Blocks.