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Installing the Optional SATA Solid-State Drive in SRX340 and SRX345 Services Gateways

The SRX340 and SRX345 services gateways allows optional installation of a 100 GB serial advanced technology attachment (SATA) solid-state drive (SSD), which can be used for storing traffic log entries. The SATA SSD is not hot-swappable.


Use only a Juniper-qualified SATA SSD.

Before you install the SSD, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

To install the SSD:

  1. Power off the services gateway.
  2. Attach an ESD grounding strap to your bare wrist and connect the strap to the ESD point on the chassis.
  3. Remove the two screws securing the SSD cover plate located on the rear panel, and remove the SSD tray from the slot.
    Figure 1: Removing the SSD TrayRemoving the SSD Tray
  4. Place the SSD on the tray, with the label facing up. Secure the SSD to the tray by using four M3x6 mm screws. Apply between 4.5 in.-lb (0.51 N-m) and 6 in.-lb (0.67 N-m) of torque to each screw.
    Figure 2: Securing the SSD to the SSD TraySecuring the SSD to the SSD TraySecuring the SSD to the SSD Tray
  5. Slide the SSD tray into the slot and secure the cover plate.
    Figure 3: Installing the SSDInstalling the SSD
  6. Power on the services gateway.

    If the SSD is unformatted, the SSD is formatted during the bootup process. A single partition in the Unix (UFS) format is created, which occupies the entire SSD. The partition is mounted on the /var/ssd directory automatically. A symbolic link (symlink) from the /mfs/var/traffic-log directory to the /var/ssd/traffic-log directory is created.

  7. Verify that the SSD information is displayed in the output of the show chassis hardware detail and show system storage detail commands.