Datasheet

OL-17436-01

Additional Configuration and Maintenance Tasks

DETAILED STEPS

Examples

The following examples sets the configuration register to load the Cisco IOS XR software and restart in

Exec mode:

rommon1> confreg 0x2

You must reset or power cycle for new config to take effect.

rommon1> reset

Using Flash Disks in the PRP

Procedures for using Flash disks in the PRP are presented in the following sections:

• About Flash Disks, page 67

• Removing and Installing a Flash Disk in the PRP, page 68

• Working with Flash Disks, page 70

About Flash Disks

ATA Flash disks are similar to linear Flash memory cards. Flash disks combine Flash memory

technology with a controller chip to achieve higher capacity and better performance than linear Flash

memory cards. The controller circuitry allows Flash disks to emulate hard disk capabilities, such as

automatically mapping out bad blocks and block erasure. Flash disks also provide the capability to

allocate noncontiguous sectors, eliminating the need for the squeeze command that is required for space

retrieval on linear Flash memory cards.

Flash disks look similar to older Cisco 20-MB linear Flash memory cards. You can install a flash disk

into either flash card slot on the PRP. Table 24 lists the Cisco product numbers for the flash disks that

are available for use with Cisco XR 12000 Series Routers.

Command or Action Purpose

Step 1

confreg value

Example:

rommon1> confreg 0x2

Sets the configuration register to the assigned

value.

• See the Commonly Used Configuration

information.

Caution Resetting the configuration register

may change the baud rate for the

console.

Step 2

reset

Example:

rommon1> reset

Reloads the system for the changes to take effect.