Mx240 Application Services Modular Storage Card Description - Juniper mx240 Hardware Manual

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MX240 Application Services Modular Storage Card Description

Copyright © 2016, Juniper Networks, Inc.
AS MXC—259W
AS MSC—50W
Cooling system—Required fans and fan tray models:
Fans:
For AC power supply: PWR-FAN-MX240-ACH-HC-U and PWR-MX240-ACL-HC-U
For DC power supply: PWR-FAN-MX2400-DC-HC-U
Fan tray—FFANTRAY-MX240-HC
Replacing an MX240 AS MLC on page 305
Replacing an MX240 AS MSC on page 309
Replacing an MX240 AS MXC on page 311
Application Services Modular Storage Card (AS MSC) is a NAND Flash—based card that
is inserted into the upper slot of the Application Services Modular Line Card (AS MLC).
The AS MSC (see Figure 29 on page
platforms such as the Junos Content Encore system. This card is equivalent to a PIC or
a Modular Interface Card (MIC) and provides a maximum of 3.6 Gbps read and 2 Gbps
of write memory.
The AS MSC has the following features:
400 GB NAND Flash memory
Up to 48K of write cycle
Multilevel cell (MLC) NAND memory support
Best-in-class NAND controller for maximum performance and reliability
AS MSCs are hot-removable and hot-insertable. One AS MSC can be installed in the top
slot of each AS MLC. Each AS MSC has these components:
SATA-3 controller—An eight-port, 6 Gbps SAS/SATA controller.
NAND Flash controller— NAND Flash and NAND Flash controller are used in an AS
MSC.
Control plane—Inter-integrated circuit control plane that allows Peripheral Component
Interconnect Express (PCIe) control.
LEDs—Two LEDs display the status of the AS MSC and storage.
Online/offline button—To power on or power off the AS MSC.
Chapter 6: Line Card Components and Descriptions
82) serves as the second tier caching storage for
81