The CompactFlash card will now be the primary boot device.
4. You can verify correct boot order by issuing the show system boot-messages command.
The output lists the devices mounted. The CompactFlash card is located at ad0.
For more information about the command, see the CLI Explorer.
Related
Documentation
M7i Chassis Description on page 11•
• M7i Midplane Description on page 12
• Maintaining the M7i Routing Engine on page 192
Removing and Inserting SDRAM Modules
The SDRAM installed on the Routing Engine provides storage for the routing and
forwarding tables and for other Routing Engine processes. The design of the Routing
Engine allows you to modify the SDRAM configuration by adding DIMM memory modules
to or removing modules from the Routing Engine board. The Routing Engine contains
from one to three 168-pin DIMMs.
To modify the SDRAM configuration, use the following procedures:
•
Removing an SDRAM Module on page 153
•
Inserting an SDRAM Module on page 154
Removing an SDRAM Module
The SDRAM modules are located on the top of the Routing Engine. To remove a SDRAM
module:
1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect
the strap to one of the ESD points on the chassis. Verify that the router is attached to
a proper earth ground.
3. Remove the Routing Engine as described in “Removing an M7i Routing Engine” on
page 141.
4. To release the SDRAM module, press the plastic ejectors on both sides of the module.
5. Grasp the SDRAM module, being careful not to touch any electrical components on
the module, and firmly pull it out of the slot on the Routing Engine.
6. Place the SDRAM module on the antistatic mat or in the electrostatic bag.
7. Push the plastic ejectors to close the empty SDRAM module slot.
153Copyright © 2019, Juniper Networks, Inc.
Chapter 23: Replacing Host Subsystem Components
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