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Replacing a Solid-State Disk in a T640 RE-C1800 Routing Engine

 
  1. Preparing to Replace a Solid-State Disk in a T640 RE-C1800 Routing Engine

  2. Removing a Solid-State Disk in a T640 RE-C1800 Routing Engine

  3. Installing a Solid-State Disk in a T640 RE-C1800 Routing Engine

  4. Copying the Junos OS to the Solid-State Disk in a T640 RE-C1800 Routing Engine

Preparing to Replace a Solid-State Disk in a T640 RE-C1800 Routing Engine

To prepare to replace an SSD:

  1. Determine whether the host subsystem is functioning as the master or as the backup, using one of these methods:
    • Check the Host Subsystem LEDs on the craft interface. If the green MASTER LED is lit, the corresponding host subsystem is functioning as the master.

    • Check the MASTER LED on the control board. If the blue MASTER LED is lit, the host subsystem is functioning as the master.

    • Issue the show chassis routing-engine command.

      user@host> show chassis routing-engine

      In this example, the Routing Engine in Slot 0 is designated Master in the Current state field.

  2. If the host subsystem is functioning as the master, switch it to backup. Issue the request chassis routing-engine master switch command.
  3. From the master Routing Engine, power down the backup Routing Engine. Issue the request system power-off other-routing-engine command.

Removing a Solid-State Disk in a T640 RE-C1800 Routing Engine

The SSD is located in the slot labeled DISK1 on the Routing Engine faceplate.

Note

The DISK2 slot is not currently supported.

To remove an SSD from a Routing Engine (see Figure 1):

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  2. Verify that the Online, DISK1, and CF LEDs on the backup Routing Engine faceplate are off.
  3. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  4. Using a Phillips (+) screwdriver, number 2, loosen the captive screws on the corners of the cover.
  5. Remove the cover from the Routing Engine slots. Caution

    Do not remove the cover if any of the LEDs on the Routing Engine faceplate are lit.

  6. Press the eject button on the right side of the DISK1 slot to release the SSD.
  7. The SSD pops partially out of the slot. Grasp the SSD and carefully slide it completely out of the slot.
  8. Place the SSD on the antistatic mat.
Figure 1: Removing an SSD
Removing an SSD

Installing a Solid-State Disk in a T640 RE-C1800 Routing Engine

To install an SSD in a Routing Engine (see Figure 2):

  1. Insert the SSD into the DISK1 slot on the Routing Engine, with the logo facing down.Caution

    Be sure to insert the SSD with the label facing down. Inserting the SSD incorrectly might damage the Routing Engine.

  2. Slide the SSD into the slot until you feel resistance, carefully ensuring that it is correctly aligned.
  3. Reinstall the Routing Engine cover. Using a Phillips (+) screwdriver, number 2, tighten the screws on the corners of the cover to secure it to the Routing Engine .
  4. From the master Routing Engine, power on the Routing Engine. For a standalone router, issue the request system power-on other-routing-engine command.
Figure 2: Installing an SSD
Installing an SSD

Copying the Junos OS to the Solid-State Disk in a T640 RE-C1800 Routing Engine

After installing an SSD for the first time, you must copy the software from the Routing Engine's CompactFlash card to the SSD.

Note

For more information about the commands for this procedure, see request system partition hard-disk, request system reboot, request system snapshot, and show system boot-messages.

To copy software to the SSD:

  1. On the console or other management device connected to the Routing Engine, enter CLI operational mode.
  2. Partition the SSD. Issue the request system partition hard-disk command.
  3. Wait until a message appears on the console confirming that the partition procedure is complete.
  4. Reboot the router's software. Issue the request system reboot command.
  5. Back up the currently running and active file system partitions on the router to standby partitions that are not running. Issue the request system snapshot command.
  6. Wait until a message appears on the console confirming that the snapshot procedure is complete.
  7. Reboot the router's software again. Issue the request system reboot command.
  8. Verify that the SSD is listed as the secondary boot device. The output lists the devices mounted. The SSD is located at ad1. Issue the show system boot-messages command.