You can use the tape device access facility to access DAT, DLT, and LTO files.
The tape device access facility supports the following files:
To specify a DAT, DLT, or LTO file enter \\.\tape[n] as the file name, where n is the tape drive number. When n is omitted, 0 is assumed.
To check the value of n, choose Administrative Tools, Computer Management, Storage, Removable Storage, Physical Location, and then choose Device Information, which is a tape device property.
You can use the hardware compression facility in accessing a DAT, DLT, or LTO. Note that this setting is applicable only if the DAT, DLT, or LTO supports hardware compression.
To reference or update the specified value, use the pdntenv command. The compression option is enabled (on) as the default setting immediately after installation.