Powering Off a QFX10002
Use the following procedure to turn off power on a QFX10002.
Before you power off a QFX10002:
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 QFX10002:
- Connect to the switch using one of the following methods:
Connect a management device to the console (
CON) port on a QFX10002 by following the instructions in Connecting a QFX Series Device to a Management Console.
Connect a management device to one of the two management (
MGMT) ports by following the instructions in Connecting a QFX10002 to a Management Ethernet Device.
- 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:
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.
The final output of any version of the request system halt command is the “The operating system has halted.” Although traffic and the operating system have stopped, the QFX10002 power module LEDs are still lit and a fan continues to run. Wait at least 60 seconds after first seeing this message before following the instructions in Step 4 and Step 5 to remove power from 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 coupler for the power cord from the faceplate.
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 plug end of the power cord connected to the power supply faceplate.
DC power supply—Loosen and the thumbscrews securing the DC power connector on the power source cables. Remove the power source cables from the power supply.
- Uncable the switch before removing it from the rack or cabinet.