Windows drive letter

In a Windows environment, you must associate a drive letter with a file system before it can be mounted. The drive letter can be specified and changed with the -t option of the mmcrfs and mmchfs commands. GPFS does not assign a default drive letter when one is not specified.

The number of available drive letters restricts the number of file systems that can be mounted on Windows.

Note: Certain applications give special meaning to drive letters A:, B:, and C:, which could cause problems if they are assigned to a GPFS file system.