The halt command performs an orderly shutdown that flushes file system updates to disk and clears the NVRAM
If a CIFS client is disconnected from the storage system, the users’ applications are terminated and changes made to open files since the last save are lost.
-d dump_string causes the storage system to perform a core dump before halting. You use dump_string to describe the reason for the core dump. The message for the core dump will include the reason specified by dump_string.
-t interval causes the storage system to halt after the number of minutes specified by interval.
-f prevents one partner in an active/active pair from taking over the other after the storage system halts.
The storage system displays the boot prompt. When you see the boot prompt, you can turn the power off.