Juniper Networks J2350 manual Replacing External Compact Flashes

JUNOS Software with Enhanced Services Hardware Guide

12.Replace the power cord or cable.

13.Press and release the power button to power on the router. Verify that the POWER LED lights steadily.

Replacing External Compact Flashes

The external compact flash is an optional component on J2320 and J2350 Services Routers. It provides secondary storage for the router and can accommodate software images, configuration files, and microcode. If the internal compact flash fails on startup, the router boots from the external compact flash.

For information about configuring the external compact flash, see the JUNOS Software Administration Guide.

NOTE: Depending on your configuration, the Services Router might not have an external compact flash. If no external compact flash is installed, proceed directly to Step 10 to install the compact flash.

The external compact flash is installed in a slot on the rear of the J2320 or J2350 chassis.

To replace the external compact flash:

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 201.

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.

132■ Replacing External Compact Flashes