Power Off a QFX5100 Device
Use the following procedure to turn off power on a QFX5100 device that is in standalone mode, a member in a QFX Virtual Chassis, or either a spine device or a leaf device in a Virtual Chassis Fabric. QFX5100 devices that are configured either as Node devices or as an Interconnect device in a QFabric system running OS Junos release 14.1 or later, must use a different procedure and CLI to ensure there is no traffic loss. See Adding or Replacing a Node Device in a QFabric Node Group .
Before you power off a QFX5100 switch:
Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.
Ensure that you do not need to forward traffic through the switch.
Ensure that you have the following parts and tools available to power off the switch:
An ESD grounding strap
An external management device such as a PC
An RJ-45 to DB-9 rollover cable to connect the external management device to the console port
To power off a QFX5100 switch:
- Connect to the switch using one of the following methods:
Connect a management device to the console (
CON) port on a QFX5100 switch. For instructions about connecting a management device to the console (
CON) port, see Connect a Device to a Management Console Using an RJ-45 Connector.
You can shut down the QFX5100 switch from a management device on your out-of-band management network. For instructions about connecting a management device to the management (
C1) port, see Connect a Device to a Network for Out-of-Band Management.
- Shut down Junos OS from the external management device
by issuing the request system halt operational mode CLI
command. This command shuts down the switch gracefully and preserves
system state information. A message appears on the console, confirming
that the operating system has halted.
You see the following output (or something similar, depending on the hardware being shut down) after entering the command:
System going down IMMEDIATELY Terminated Poweroff for hypervisor to respawn Aug 26 16:49:04 init: event-processing (PID 1325) exited with status=1 Aug 26 16:49:04 init: packet-forwarding-engine (PID 1809) exited with status=8 . Waiting (max 60 seconds) for system process `vnlru_mem' to stop...done Waiting (max 60 seconds) for system process `vnlru' to stop...done Waiting (max 60 seconds) for system process `bufdaemon' to stop...done Waiting (max 60 seconds) for system process `syncer' to stop... Syncing disks, vnodes remaining...0 0 0 0 0 done syncing disks... All buffers synced. Uptime: 11m7s recorded reboot as normal shutdown unloading fpga driver Powering system off using ACPI Stopping crond: [ OK ] Running guests on default URI: no running guests. Stopping libvirtd daemon: [ OK ] Shutting down ntpd: [ OK ] Shutting down system logger: [ OK ] Shutting down sntpc: [ OK ] Stopping sshd: [ OK ] Stopping vehostd: [ OK ] Stopping watchdog: [ OK ] Stopping xinetd: [ OK ] Sending all processes the TERM signal... haveged: haveged: Stopping due to signal 15 [ OK ] Sending all processes the KILL signal... [ OK ] Saving random seed: [ OK ] Syncing hardware clock to system time [ OK ] Unmounting file systems: [ OK ] init: Re-executiRE-FPGA-DRV: reboot notifier called with 0x0003 ng /sbin/init Halting system... tmc-fpga: TMC FPGA driver shutdown called. Power down.
The final output of any version of the request system halt command is “Power down.” Wait at least 60 seconds after first seeing this message before following the instructions in Step 4 and Step 5 to power off the switch.
- Attach the grounding strap to your bare wrist and to a site ESD point.
Disconnect power to the switch by performing one of the following tasks:
AC power supply—If the AC power source outlet has a power switch, set it to the OFF (O) position. If the AC power source outlet does not have a power switch, gently pull out the plug end of the power cord connected to the power source outlet.
DC power supply—Switch the circuit breaker on the panel board that services the DC circuit to the OFF position.
Remove the power source cable from the power supply faceplate:
AC power supply—Remove the power cord from the power supply faceplate by detaching the power cord retainer and gently pulling out the socket end of the power cord connected to the power supply faceplate.
DC power supply—Remove the screws securing the ring lugs attached to the power source cables to the power supply using the screwdriver, and remove the power source cables from the power supply. Replace the screws on the terminals and tighten them.
- Uncable the switch before removing it from the rack or cabinet.