Cisco Systems CISCO7201 manual Rear View, CompactFlash Disk Information

Chapter 1 Overview

Cisco 7201 Hardware Overview

CompactFlash Disk Information

The Cisco 7201 router has one CompactFlash Disk slot that uses CompactFlash Disks. The device in this slot is always addressed as disk0: when using Cisco IOS command-line interface (CLI) commands.

CompactFlash Disks are smaller in size than Type 2 Flash Disks but provide the same AT Attachment (ATA) interface and equivalent functionality. This interface complies with the ANSI ATA Interface Document X3T13.1153 D Rev. 9 specification. CompactFlash Disks provide from 256 MB of storage.

The CompactFlash Disk has controller circuitry that allows it to emulate a hard disk and automatically maps out bad blocks and performs automatic block erasure. The CompactFlash Disk also provides the capability to allocate noncontiguous sectors, which eliminates the need for the squeeze command (which was required with older-style linear flash memory cards to recover the space used by deleted files).

The CompactFlash Disk also supports the Cisco IOS File System feature, which provides a single interface to all of the router’s file systems, including the Flash Disks and flash memory, as well as network file systems such as File Transfer Protocol (FTP) and Trivial FTP (TFTP) servers.

Table A-4 on page A-3lists the CompactFlash Disk options. Also see Appendix B, “Using the CompactFlash Disk.”

Rear View

This section provides information about the power supplies and fans on the rear of the Cisco 7201 router.

Figure 1-4 Cisco 7201—Rear View

		PWR SLOT 1 OK	PWR SLOT 2 OK PWR SLOT 1
	1	2	3		PWR SLOT 2	158675
				4
1	Fans			3	Power supply slot 1
2	Chassis ground connector			4		Power supply slot 2

Four internal fans draw cooling air into the chassis and across internal components to maintain an acceptable operating temperature. (See Figure 1-4.) The four fans are located at the rear of the chassis, as is the chassis grounding connector that provides a chassis ground connection for ESD equipment or a two-hole grounding lug. Two power supplies, either two AC power supplies or two DC power supplies, are accessed from the rear of the router.

Cisco 7201 Installation and Configuration Guide

OL-11364-04 1-7