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Halting the storage system

The halt command performs an orderly shutdown that flushes file system updates to the disk and clears the NVRAM

About this task

The storage system stores requests it receives in nonvolatile random-access memory (NVRAM). For the following reasons, you should always execute the halt command before turning the storage system off:

Step

  1. Enter the following command: halt [-d dump_string] [-t interval] [-f] [-s]
    • -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.
      Attention: Using halt -d causes an improper shutdown of the storage system (also called a dirty shutdown). Avoid using halt -d for normal maintenance shutdowns. For more details, see the na_halt(1) man page.
    • -t interval causes the storage system to halt after the number of minutes you specify for the interval.
    • -f prevents one partner in a high-availability configuration from taking over the other after the storage system halts.
    • -s halts the system at the boot environment prompt and clears the FRU attention LED (if applicable) at the subsequent reboot.
    The storage system displays the boot prompt. When you see the boot prompt, you can turn the power off.