NS20 nas_halt storage array shutdown

Follow these steps:

1. Do the following before you power down the Celerra NS20:

a. Notify all users of the planned powerdown several days in advance when possible.

b. Inhibit all logins and notify all users several minutes in advance of the impending powerdown.

c. Log out all users.
2. Log in to the Control Station as root, using a Telnet or SSH session. To perform a planned powerdown, you must be within close proximity to the server.

3. To halt the Celerra server, type:

# /nasmcd/sbin/nas_halt now
ARE YOU SURE YOU WANT TO CONTINUE? [ yes or no ] :
# yes
Sending the halt signal to the Master Control Daemon...: Done
.
.
Halting system...
flushing ide devices: hda hdd
Power down.

It can take as long as 20 minutes to halt the server, depending on the number of blades and the size of the database.

Wait until the command completes before continuing.

4. Disconnect the blade enclosure power cords from the power distribution units (PDUs).

5. Turn off (0 position) the power switch on the standby power supplies (SPSs) and wait at least one minute to allow the storage system to write its cache to disk. Make sure the supply¿s power indicator is off before continuing.

6. Disconnect the DAE3P power cords from the PDU.

7. If no components other than the NS20 are in the cabinet, turn off the cabinet circuit breakers