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1.
Verify the device that the router used to boot, by running the show system storage
command from the CLI. For example:
user@host> show system storage
Filesystem 512-blocks Used Avail Capacity Mounted on
/dev/ad0s1a 218254 175546 40526 81% / ...
The boot device is mounted on /. The internal compact flash is located at ad0.
The external compact flash is located at ad2. The USB storage device is located
at da0. This example shows that the router booted from the internal compact
flash.
If the show system storage output indicates that the router booted from the
external compact flash, you need to power off the router before replacing the
compact flash.
2. Place an electrostatic bag or antistatic mat on a flat, stable surface.
3. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to the ESD point on the chassis, or to an outside ESD point if
the router is disconnected from earth ground. For more information about ESD,
see “Preventing Electrostatic Discharge Damage” on page 251.
4.
Press and release the power button to power off the router. Wait for the POWER
LED to turn off before you remove the compact flash.
Skip this step, if the router did not boot from the external compact flash (see
Step 1).
5. Gently grasp the USB storage device and slide it out of the USB port.
6. Place the USB storage device on the antistatic mat or in the electrostatic bag.
Installing the USB Storage Device
To install the USB storage device:
NOTE: For a list of supported USB storage devices, see the J-series Services Router
Release Notes at http://www.juniper.net.
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to the ESD point on the chassis, or to an outside ESD point if
the router is disconnected from earth ground. For more information about ESD,
see “Preventing Electrostatic Discharge Damage” on page 251.
2. Orient the USB storage device with the USB port on the front panel of the router.
Replacing USB Storage Devices ■ 187
Chapter 10: Replacing Hardware Components