Sd Card Overview; Sd Card File System - Cisco 1120 Hardware Installation

Using the SD Flash Memory Module
This section describes the Secure Digital (SD) flash memory module (or SD card) that is used with the Cisco 1120
Connected Grid Router, and includes instructions for installing and removing the SD card.
These topics are discussed:

SD Card Overview, page 79

SD Card Status, page 80

Accessing the SD Card, page 81

SD Card Insertion and Removal, page 81

Securing the SD Card with a Password, page 83

Related Commands, page 84

SD Card Overview

The router features an SD card connector, which supports a single Cisco SD card. The SD card stores router data and
software, including:

Router operating software

Running configurations

Network management software configuration

Network registration data

Router firmware

Billing data

Outage data

Event data
The topics in this section include:

SD Card File System, page 79

Sharing SD Cards Across Systems, page 80

Supported SD Cards, page 80

SD Card File System

The SD card uses a Linux-based EXT2/3 file system. The router configuration is stored in a binary file in an invisible
partition on the card.
Cisco Systems, Inc. www.cisco.com
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