Powering Off a QFX5200
Before you remove the power cord to power off a QFX5200:
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.
Use the following procedure to turn off power on a QFX5200 standalone 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 QFX5200 switch:
- Connect to the switch using one of the following methods:
Connect a management device to the console (CON) port on a QFX5200. 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 QFX5200 from a management device on your out-of-band management network. For instructions about connecting a management device to the management (CO) port, see Connect a Device to a Network for Out-of-Band Management.
- Shut down Junos OS from the external management device.
For Junos OS Evolved systems:
- Issue the
request system shutdown power-offoperational 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.On Junos OS Evolved systems, you see the following output:
user@host>request system shutdown power-off Power off the system ? [yes,no] (n) yes poweroff the system at Tue Sep 18 11:15:27 2018
For standard Junos OS systems:
- Issue the
request system haltoperational 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:
Shutdown NOW! System going down IMMEDIATELY Terminated Poweroff for hypervisor to respawn Oct 25 10:35:05 init: event-processing (PID 1114) exited with status=1 Oct 25 10:35:05 init: packet-forwarding-engine (PID 1424) 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 done syncing disks... All buffers synced. Uptime: 11h0m30s Normal shutdown (no dump device defined) unloading fpga driver unloading fx-scpld Powering system off using ACPI kvm: 28646: cpu0 disabled perfctr wrmsr: 0xc1 data 0xabcd pci-stub 0000:01:00.2: transaction is not cleared; proceeding with reset anyway pci-stub 0000:01:00.1: transaction is not cleared; proceeding with reset anyway hub 1-1:1.0: over-current change on port 1 Stopping crond: [ OK ] 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... [ OK ] Sending all processes the KILL signal... [ OK ] Saving random seed: [ OK ] Syncing hardware clock to system time [ OK ] Turning off swap: [ OK ] Unmounting file systems: [ OK ] init: Re-executing /sbin/init Halting system... System halted.
- Issue the
- 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.