Removing the QFX10008
Powering Off a QFX10000
Use the following procedure to power off a QFX10000.
Before you power off a QFX10000:
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 on one of the Routing and Control Board (RCBs)
To power off a QFX10000:
- Connect to the switch using one of the following methods:
Connect a management device to the console (
CON) port on a RCB by following the instructions in Connect a Device to a Management Console Using an RJ-45 Connector.Connect a management device to one of the two management (
MGMT) ports on the RCB by following the instructions in 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:
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.
Caution The final output of any version of the request system halt command is the “The operating system has halted.” 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 one of the two site ESD points on the chassis.
Disconnect power to the switch by performing one of the following tasks:
AC power supply—Set the enable switch to the OFF (O) position and 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 the thumbscrews securing the DC power connector on the power source cables. Remove the power source cables from the power supply.
- Remove any remaining cables and optics from the switch before removing it from the rack.
Removing a QFX10008 From a 4-Post Rack Using a Mechanical Lift
Because of the switch's size and weight, we strongly recommend using a mechanical lift to install the QFX10008.
For instructions on installing a switch without using a mechanical lift, see Manually Removing a QFX10008 from a 4-Post Rack.
Before you remove the switch using a lift:
Ensure that the rack is stable and secured to the building.
Ensure there is enough space to place the removed switch in its new location and along the path to the new location. See QFX10000 Clearance Requirements for Airflow and Hardware Maintenance.
Review the chassis lifting guidelines described in QFX10002 Installation Safety Guidelines.
Ensure that the switch has been safely powered off.
When removing more than one switch chassis from a rack, remove the switches in order from top to bottom.
Ensure that you have the following parts and tools available to remove the switch:
A mechanical lift rated for 500 lbs. (226.8 kg)
A Phillips (+) screwdriver, number 2 or number 3, depending on the size of your rack-mounting screws
To remove the switch using a mechanical lift (see Figure 1):
- Use the appropriate Phillips (+) screwdriver to remove the 24 mounting screws that attach the chassis front-mounting brackets to the rack.
- Move the lift to the rack and position it so that its platform is centers about 0.5 in. (1.27 cm) below the bottom of the switch chassis and as close to it as possible.
- Carefully slide the switch from the adjustable mounting brackets attached to the rack onto the lift.
- Move the lift away from the rack and lower the lift.
- Use the lift to transport the switch to its new location.
Figure 1: Moving the QFX10008 Using a Mechanical Lift 
Manually Removing a QFX10008 from a 4-Post Rack
If you cannot use a mechanical lift to remove the switch (the preferred method), you can install it manually.
The chassis weighs approximately 145 lb (66 kg) with only the fan tray controllers installed. Lifting the chassis and mounting it in a rack or cabinet requires at least four people.
Make sure the chassis is empty (contains only the backplane) before you lift it.
When removing more than one switch chassis from a rack, remove the switches in order from top to bottom.
Before you manually remove the switch from a rack:
Ensure that the rack is stable and secured to the building.
Ensure there is enough space to place the removed switch in its new location and along the path to the new location. See QFX10000 Clearance Requirements for Airflow and Hardware Maintenance.
Review the chassis lifting guidelines described in Chassis and Component Lifting Guidelines.
Ensure that the switch has been safely powered off.
Ensure you have a Phillips (+) screwdriver, number 2 or number 3, depending on the size of your rack-mounting screws.
To manually remove a QFX10008 from a rack:
- Remove all line cards, Control Boards, power supplies,
fan trays, and SIBs before attempting to move the switch chassis.
Ensure that all of the removed components are stored in electrostatic bags.
- Use the appropriate Phillips (+) screwdriver to remove
the 24 mounting screws that attach the chassis front-mounting brackets
to the rack.
Warning To prevent injury, keep your back straight and lift with your legs, not your back. Do not twist your body as you lift. Balance the load evenly and be sure that your footing is firm.
- Position one person on each side and another in the rear of the chassis. There are two handles on the side, but these handles are only meant to help guide the empty chassis out of the mounting brackets.
- On each side, hold the bottom of the chassis and carefully lift it onto the mounting brackets on the four-post rack.
- Carefully lift it out of the adjustable mounting brackets
attached to the rack. If you have a pallet jack, move the switch onto
the pallet jack. See Figure 2.
Figure 2: Lifting the QFX10008 Without Using a Mechanical Lift 
- Carefully move the chassis to its new location.
After moving the switch to its new location, reinstall the components in the chassis or store the components in electrostatic bags.