Juniper Networks J-series Services Router J2320 - Manual (Page 206)

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 J-series Services
Router 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 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.
184 ■ Replacing External Compact Flashes
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide