Juniper Networks J2320 manual Installing the USB Storage Device

Chapter 10: Replacing Hardware Components

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 249.

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 249.

2.Orient the USB storage device with the USB port on the front panel of the router.

Replacing USB Storage Devices ■ 189