Chapter 5 NPE-G1 Overview

NPE-G1 Description and Overview

CompactFlash Disks are smaller in size than Type 2 Flash Disks but provide the same 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 64 MB to 256 MB of storage space.

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.

To install a CompactFlash Disk in the CompactFlash Disk slot, complete the following steps.

Step 1 Attach an ESD wrist or ankle strap, connecting the equipment end of the strap to an unfinished chassis surface.

Step 2 Orient the CompactFlash Disk so that its connector end faces the appropriate slot. (See 1 in Figure 5-4.)

Figure 5-4 Installing and Removing a CompactFlash Disk

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Inserting the compact Flash Disk

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Step 3 Carefully insert the CompactFlash Disk into the slot until it completely seats in the connector, and the ejector button for the slot pops out toward you. (See 2 in Figure 5-4.)

Note The CompactFlash Disk is keyed and cannot be seated the wrong way. The ejector button does not pop out if the CompactFlash Disk is not completely inserted.

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Cisco Systems NPE-225, NPE-175 manual Installing and Removing a CompactFlash Disk