Juniper Networks MX480 - Manual (Page 47)

MX480 Application Services Modular Storage Card Overview
• MX480 Application Services Modular Storage Card Description on page 23
• MX480 AS MSC LEDs on page 24
MX480 Application Services Modular Storage Card Description
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 12 on page 23 ) serves as the second tier caching storage for
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 36 Gbps read and 2 Gbps
of write memory.
The AS MSC has the following features:
• 6.4 TB 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—Each controller can access 512 GB, and eight controllers
communicate with one Raid on chip (ROC). 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.
Figure 12: Application Services Modular Storage Card
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23 Copyright © 2013, Juniper Networks, Inc.
Chapter 2: MX480 Hardware Components